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A scalable, distributed Time Series Database.
http://opentsdb.net
GNU Lesser General Public License v2.1
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openTSDB hanging often in 2.2.0 RC1 #573

Closed rclaire closed 8 years ago

rclaire commented 9 years ago

Hi,

We've been observing frequent hanging of openTSDB during testing of the 2.2.0 RC1 release, in a similar environment to large 2.1.0 production deployment

The most common error message that we have seen in the openTSDB logs is the following:

2015-09-24 21:22:29,800 ERROR [AsyncHBase I/O Worker #12] RegionClient: After decoding the last message on [id: 0x385ff745, /xx.xx.xx.141:55269 :> /xx.x.xx.80:60020], there was still some undecoded bytes in the channel's buffer (which are going to be lost): ReplayingDecoderBuffer(ridx=0, widx=3)=[110, 7, -41, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]

Testing is done with a staging environment, starting with empty HBase tables. We've been trying multiple combinations of settings (Salting, random UID assignment, uid width, Async IO on and off, etc...), JVM options, and HBase regions splitting, but the problem persist.

The types of things that we are seeing are:

Example of stacktrace during hung startup:

Full thread dump Java HotSpot(TM) 64-Bit Server VM (24.65-b04 mixed mode):

"Attach Listener" daemon prio=10 tid=0x00007fcfd4001000 nid=0x2789 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"process reaper" daemon prio=10 tid=0x00007fcf54005800 nid=0x270c waiting on condition [0x00007fcfba3e2000]
   java.lang.Thread.State: TIMED_WAITING (parking)
    at sun.misc.Unsafe.park(Native Method)
    - parking to wait for  <0x0000000795807408> (a java.util.concurrent.SynchronousQueue$TransferStack)
    at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226)
    at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460)
    at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:359)
    at java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:942)
    at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"Gnuplot #1" prio=10 tid=0x00007fcfbc053000 nid=0x270a waiting on condition [0x00007fcfba7e6000]
   java.lang.Thread.State: WAITING (parking)
    at sun.misc.Unsafe.park(Native Method)
    - parking to wait for  <0x0000000792d5a048> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
    at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
    at java.util.concurrent.ArrayBlockingQueue.take(ArrayBlockingQueue.java:374)
    at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"DestroyJavaVM" prio=10 tid=0x00007fd020008800 nid=0x1d08 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"AsyncHBase Timer Boss Pool #2" prio=10 tid=0x00007fcf90001000 nid=0x1d3f waiting on condition [0x00007fcfba4e3000]
   java.lang.Thread.State: TIMED_WAITING (sleeping)
    at java.lang.Thread.sleep(Native Method)
    at org.jboss.netty.util.HashedWheelTimer$Worker.waitForNextTick(HashedWheelTimer.java:445)
    at org.jboss.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:364)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase Timer HBaseClient #1" prio=10 tid=0x00007fcf48021800 nid=0x1d3e waiting on condition [0x00007fcfba5e4000]
   java.lang.Thread.State: TIMED_WAITING (sleeping)
    at java.lang.Thread.sleep(Native Method)
    at org.jboss.netty.util.HashedWheelTimer$Worker.waitForNextTick(HashedWheelTimer.java:445)
    at org.jboss.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:364)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #16" prio=10 tid=0x00007fd0207b2000 nid=0x1d3b runnable [0x00007fcfba8e7000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c83b9b0> (a sun.nio.ch.Util$2)
    - locked <0x000000077c83b9a0> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c83b888> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #15" prio=10 tid=0x00007fd020787000 nid=0x1d3a runnable [0x00007fcfba9e8000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c82b128> (a sun.nio.ch.Util$2)
    - locked <0x000000077c82b118> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c82b000> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #14" prio=10 tid=0x00007fd02075c000 nid=0x1d39 runnable [0x00007fcfbaae9000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c81a8a0> (a sun.nio.ch.Util$2)
    - locked <0x000000077c81a890> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c81a778> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #13" prio=10 tid=0x00007fd020731000 nid=0x1d38 runnable [0x00007fcfbabea000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c80a018> (a sun.nio.ch.Util$2)
    - locked <0x000000077c80a008> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c809ef0> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #12" prio=10 tid=0x00007fd020706000 nid=0x1d37 runnable [0x00007fcfbaceb000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c7f9700> (a sun.nio.ch.Util$2)
    - locked <0x000000077c7f96f0> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c7f95d8> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #11" prio=10 tid=0x00007fd0206db000 nid=0x1d36 runnable [0x00007fcfbadec000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c7e8e78> (a sun.nio.ch.Util$2)
    - locked <0x000000077c7e8e68> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c7e8d50> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #10" prio=10 tid=0x00007fd0206b0000 nid=0x1d35 runnable [0x00007fcfbaeed000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c7d85f0> (a sun.nio.ch.Util$2)
    - locked <0x000000077c7d85e0> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c7d84c8> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #9" prio=10 tid=0x00007fd020684800 nid=0x1d34 runnable [0x00007fcfbafee000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c7c7d68> (a sun.nio.ch.Util$2)
    - locked <0x000000077c7c7d58> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c7c7c40> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #8" prio=10 tid=0x00007fd020659800 nid=0x1d33 runnable [0x00007fcfbb0ef000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c7b74e0> (a sun.nio.ch.Util$2)
    - locked <0x000000077c7b74d0> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c7b73b8> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #7" prio=10 tid=0x00007fd02062e800 nid=0x1d32 runnable [0x00007fcfbb1f0000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c7a6c58> (a sun.nio.ch.Util$2)
    - locked <0x000000077c7a6c48> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c7a6b30> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #6" prio=10 tid=0x00007fd020603800 nid=0x1d31 runnable [0x00007fcfbb2f1000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c7963d0> (a sun.nio.ch.Util$2)
    - locked <0x000000077c7963c0> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c7962a8> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #5" prio=10 tid=0x00007fd020502800 nid=0x1d30 runnable [0x00007fcfbb3f2000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c785b48> (a sun.nio.ch.Util$2)
    - locked <0x000000077c785b38> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c785a20> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #4" prio=10 tid=0x00007fd020500000 nid=0x1d2f runnable [0x00007fcfbb4f3000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c775230> (a sun.nio.ch.Util$2)
    - locked <0x000000077c775220> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c775108> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #3" prio=10 tid=0x00007fd0204fc800 nid=0x1d2e runnable [0x00007fcfbb5f4000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c7649a8> (a sun.nio.ch.Util$2)
    - locked <0x000000077c764998> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c764880> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #2" prio=10 tid=0x00007fd0204f9000 nid=0x1d2d runnable [0x00007fcfbb6f5000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c754120> (a sun.nio.ch.Util$2)
    - locked <0x000000077c754110> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c753ff8> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #1" prio=10 tid=0x00007fd0204f8000 nid=0x1d2c runnable [0x00007fcfbb7f6000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c743898> (a sun.nio.ch.Util$2)
    - locked <0x000000077c743888> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c743770> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Boss #1" prio=10 tid=0x00007fd0204fa800 nid=0x1d2b runnable [0x00007fcfbb8f7000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c72a818> (a sun.nio.ch.Util$2)
    - locked <0x000000077c72a808> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c72a6f0> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.NioClientBoss.run(NioClientBoss.java:42)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Worker #10" prio=10 tid=0x00007fd0204ae800 nid=0x1d2a runnable [0x00007fcfbb9f8000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c5698d0> (a sun.nio.ch.Util$2)
    - locked <0x000000077c5698c0> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c5697a8> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Worker #9" prio=10 tid=0x00007fd020322000 nid=0x1d29 runnable [0x00007fcfbbaf9000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c559070> (a sun.nio.ch.Util$2)
    - locked <0x000000077c559060> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c558f48> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Worker #8" prio=10 tid=0x00007fd020320000 nid=0x1d28 runnable [0x00007fcfbbbfa000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c548810> (a sun.nio.ch.Util$2)
    - locked <0x000000077c548800> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c5486e8> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Worker #7" prio=10 tid=0x00007fd02031e000 nid=0x1d27 runnable [0x00007fcfbbcfb000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c537f60> (a sun.nio.ch.Util$2)
    - locked <0x000000077c537f50> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c537e38> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Worker #6" prio=10 tid=0x00007fd02031b800 nid=0x1d26 runnable [0x00007fcfbbdfc000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c527700> (a sun.nio.ch.Util$2)
    - locked <0x000000077c5276f0> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c5275d8> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Worker #5" prio=10 tid=0x00007fd02031a800 nid=0x1d25 runnable [0x00007fcfbbefd000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c516ea0> (a sun.nio.ch.Util$2)
    - locked <0x000000077c516e90> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c516d78> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Worker #4" prio=10 tid=0x00007fd020315000 nid=0x1d24 runnable [0x00007fcfbbffe000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c506640> (a sun.nio.ch.Util$2)
    - locked <0x000000077c506630> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c506518> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Worker #3" prio=10 tid=0x00007fd0202f9800 nid=0x1d23 runnable [0x00007fcffc116000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c4f5db0> (a sun.nio.ch.Util$2)
    - locked <0x000000077c4f5da0> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c4f5c88> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Worker #2" prio=10 tid=0x00007fd0202f6000 nid=0x1d22 runnable [0x00007fcffc217000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c4e5550> (a sun.nio.ch.Util$2)
    - locked <0x000000077c4e5540> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c4e5428> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Worker #1" prio=10 tid=0x00007fd0202f4800 nid=0x1d21 in Object.wait() [0x00007fcffc317000]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x000000077e3f1be8> (a com.stumbleupon.async.Deferred$Signal)
    at java.lang.Object.wait(Object.java:503)
    at com.stumbleupon.async.Deferred.doJoin(Deferred.java:1138)
    - locked <0x000000077e3f1be8> (a com.stumbleupon.async.Deferred$Signal)
    at com.stumbleupon.async.Deferred.joinUninterruptibly(Deferred.java:1064)
    at net.opentsdb.core.TsdbQuery.run(TsdbQuery.java:491)
    at net.opentsdb.tsd.GraphHandler.doGraph(GraphHandler.java:200)
    at net.opentsdb.tsd.GraphHandler.execute(GraphHandler.java:124)
    at net.opentsdb.tsd.RpcHandler.handleHttpQuery(RpcHandler.java:283)
    at net.opentsdb.tsd.RpcHandler.messageReceived(RpcHandler.java:134)
    at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
    at org.jboss.netty.handler.timeout.IdleStateAwareChannelUpstreamHandler.handleUpstream(IdleStateAwareChannelUpstreamHandler.java:36)
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
    at org.jboss.netty.handler.timeout.IdleStateHandler.messageReceived(IdleStateHandler.java:294)
    at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
    at org.jboss.netty.handler.codec.http.HttpContentEncoder.messageReceived(HttpContentEncoder.java:82)
    at org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:88)
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
    at org.jboss.netty.handler.codec.http.HttpContentDecoder.messageReceived(HttpContentDecoder.java:108)
    at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
    at org.jboss.netty.handler.codec.http.HttpChunkAggregator.messageReceived(HttpChunkAggregator.java:145)
    at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
    at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296)
    at org.jboss.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:459)
    at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:536)
    at org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:435)
    at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
    at org.jboss.netty.channel.SimpleChannelHandler.messageReceived(SimpleChannelHandler.java:142)
    at org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:88)
    at net.opentsdb.tsd.ConnectionManager.handleUpstream(ConnectionManager.java:87)
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
    at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268)
    at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255)
    at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Boss #1" prio=10 tid=0x00007fd0202ec000 nid=0x1d20 runnable [0x00007fcffc419000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x000000077c43f320> (a sun.nio.ch.Util$2)
    - locked <0x000000077c43f2a0> (a java.util.Collections$UnmodifiableSet)
    - locked <0x000000077c43f0f8> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:102)
    at org.jboss.netty.channel.socket.nio.NioServerBoss.select(NioServerBoss.java:163)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.NioServerBoss.run(NioServerBoss.java:42)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"Service Thread" daemon prio=10 tid=0x00007fd020171800 nid=0x1d1e runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"C2 CompilerThread1" daemon prio=10 tid=0x00007fd02016f000 nid=0x1d1d waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"C2 CompilerThread0" daemon prio=10 tid=0x00007fd02016d000 nid=0x1d1c waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"Signal Dispatcher" daemon prio=10 tid=0x00007fd02016a800 nid=0x1d1b runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"Surrogate Locker Thread (Concurrent GC)" daemon prio=10 tid=0x00007fd020169000 nid=0x1d1a waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"Finalizer" daemon prio=10 tid=0x00007fd02014a000 nid=0x1d19 in Object.wait() [0x00007fd01cb21000]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x000000077ae05608> (a java.lang.ref.ReferenceQueue$Lock)
    at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:135)
    - locked <0x000000077ae05608> (a java.lang.ref.ReferenceQueue$Lock)
    at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:151)
    at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209)

"Reference Handler" daemon prio=10 tid=0x00007fd020148000 nid=0x1d18 in Object.wait() [0x00007fd01cc22000]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x000000077ae05190> (a java.lang.ref.Reference$Lock)
    at java.lang.Object.wait(Object.java:503)
    at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:133)
    - locked <0x000000077ae05190> (a java.lang.ref.Reference$Lock)

"VM Thread" prio=10 tid=0x00007fd020143800 nid=0x1d17 runnable 

"Gang worker#0 (Parallel GC Threads)" prio=10 tid=0x00007fd020019800 nid=0x1d09 runnable 

"Gang worker#1 (Parallel GC Threads)" prio=10 tid=0x00007fd02001b800 nid=0x1d0a runnable 

"Gang worker#2 (Parallel GC Threads)" prio=10 tid=0x00007fd02001d800 nid=0x1d0b runnable 

"Gang worker#3 (Parallel GC Threads)" prio=10 tid=0x00007fd02001f000 nid=0x1d0c runnable 

"Gang worker#4 (Parallel GC Threads)" prio=10 tid=0x00007fd020021000 nid=0x1d10 runnable 

"Gang worker#5 (Parallel GC Threads)" prio=10 tid=0x00007fd020023000 nid=0x1d11 runnable 

"Gang worker#6 (Parallel GC Threads)" prio=10 tid=0x00007fd020024800 nid=0x1d12 runnable 

"Gang worker#7 (Parallel GC Threads)" prio=10 tid=0x00007fd020026800 nid=0x1d13 runnable 

"Concurrent Mark-Sweep GC Thread" prio=10 tid=0x00007fd020100000 nid=0x1d16 runnable 
"Gang worker#0 (Parallel CMS Threads)" prio=10 tid=0x00007fd0200fb800 nid=0x1d14 runnable 

"Gang worker#1 (Parallel CMS Threads)" prio=10 tid=0x00007fd0200fd800 nid=0x1d15 runnable 

"VM Periodic Task Thread" prio=10 tid=0x00007fd02017d000 nid=0x1d1f waiting on condition 

JNI global references: 160

Example of stacktrace during hung query:

Full thread dump Java HotSpot(TM) 64-Bit Server VM (24.65-b04 mixed mode):

"Attach Listener" daemon prio=10 tid=0x00007f604c001000 nid=0x4089 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"DestroyJavaVM" prio=10 tid=0x00007f60a4008000 nid=0x3f56 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"AsyncHBase Timer Boss Pool #2" prio=10 tid=0x00007f600c001000 nid=0x3f86 waiting on condition [0x00007f608bffe000]
   java.lang.Thread.State: TIMED_WAITING (sleeping)
    at java.lang.Thread.sleep(Native Method)
    at org.jboss.netty.util.HashedWheelTimer$Worker.waitForNextTick(HashedWheelTimer.java:445)
    at org.jboss.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:364)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase Timer HBaseClient #1" prio=10 tid=0x00007f5fc4027000 nid=0x3f85 waiting on condition [0x00007f609011c000]
   java.lang.Thread.State: TIMED_WAITING (sleeping)
    at java.lang.Thread.sleep(Native Method)
    at org.jboss.netty.util.HashedWheelTimer$Worker.waitForNextTick(HashedWheelTimer.java:445)
    at org.jboss.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:364)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #16" prio=10 tid=0x00007f60a46cd000 nid=0x3f82 runnable [0x00007f609041f000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab9cf310> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab9cf300> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab9cf1e8> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #15" prio=10 tid=0x00007f60a46a1800 nid=0x3f81 runnable [0x00007f6090520000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab9bea88> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab9bea78> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab9be960> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #14" prio=10 tid=0x00007f60a4676800 nid=0x3f80 runnable [0x00007f6090621000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab9ae200> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab9ae1f0> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab9ae0d8> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #13" prio=10 tid=0x00007f60a464b800 nid=0x3f7f runnable [0x00007f6090722000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab99d978> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab99d968> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab99d850> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #12" prio=10 tid=0x00007f60a4620800 nid=0x3f7e runnable [0x00007f6090823000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab98d060> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab98d050> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab98cf38> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #11" prio=10 tid=0x00007f60a45f5800 nid=0x3f7d runnable [0x00007f6090924000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab97c7d8> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab97c7c8> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab97c6b0> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #10" prio=10 tid=0x00007f60a45ca800 nid=0x3f7c runnable [0x00007f6090a24000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab96bf50> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab96bf40> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab96be28> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #9" prio=10 tid=0x00007f60a459f800 nid=0x3f7b runnable [0x00007f6090b25000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab95b6c8> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab95b6b8> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab95b5a0> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #8" prio=10 tid=0x00007f60a4574000 nid=0x3f7a runnable [0x00007f6090c27000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab94ae40> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab94ae30> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab94ad18> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #7" prio=10 tid=0x00007f60a4549000 nid=0x3f79 runnable [0x00007f6090d28000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab93a5b8> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab93a5a8> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab93a490> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #6" prio=10 tid=0x00007f60a451e000 nid=0x3f78 runnable [0x00007f6090e29000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab929d30> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab929d20> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab929c08> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #5" prio=10 tid=0x00007f60a441d000 nid=0x3f77 runnable [0x00007f6090f2a000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab9194a8> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab919498> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab919380> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #4" prio=10 tid=0x00007f60a441b000 nid=0x3f76 runnable [0x00007f609102b000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab908b90> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab908b80> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab908a68> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #3" prio=10 tid=0x00007f60a4417000 nid=0x3f75 runnable [0x00007f609112c000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab8f8308> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab8f82f8> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab8f81e0> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #2" prio=10 tid=0x00007f60a4416000 nid=0x3f74 runnable [0x00007f609122c000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab8e7a80> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab8e7a70> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab8e7958> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Worker #1" prio=10 tid=0x00007f60a4413000 nid=0x3f73 runnable [0x00007f609132d000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab8d71f8> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab8d71e8> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab8d70d0> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"AsyncHBase I/O Boss #1" prio=10 tid=0x00007f60a4415000 nid=0x3f72 runnable [0x00007f609142f000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab8be178> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab8be168> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab8be050> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.NioClientBoss.run(NioClientBoss.java:42)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Worker #10" prio=10 tid=0x00007f60a43c9000 nid=0x3f71 runnable [0x00007f6091530000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab6fd230> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab6fd220> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab6fd108> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Worker #9" prio=10 tid=0x00007f60a439e000 nid=0x3f70 runnable [0x00007f6091631000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab6ec9d0> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab6ec9c0> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab6ec8a8> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Worker #8" prio=10 tid=0x00007f60a4373000 nid=0x3f6f runnable [0x00007f6091732000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab6dc170> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab6dc160> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab6dc048> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Worker #7" prio=10 tid=0x00007f60a4347800 nid=0x3f6e runnable [0x00007f6091833000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab6cb8c0> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab6cb8b0> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab6cb798> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Worker #6" prio=10 tid=0x00007f60a431c800 nid=0x3f6d runnable [0x00007f6091934000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab6bb060> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab6bb050> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab6baf38> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Worker #5" prio=10 tid=0x00007f60a42f2000 nid=0x3f6c runnable [0x00007f6091a34000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab6aa800> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab6aa7f0> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab6aa6d8> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Worker #4" prio=10 tid=0x00007f60a4230800 nid=0x3f6b runnable [0x00007f6091b35000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab699fa0> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab699f90> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab699e78> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Worker #3" prio=10 tid=0x00007f60a4208800 nid=0x3f6a runnable [0x00007f6091c37000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab689710> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab689700> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab6895e8> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Worker #2" prio=10 tid=0x00007f60a4208000 nid=0x3f69 in Object.wait() [0x00007f6091d37000]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00000007b08f0b08> (a com.stumbleupon.async.Deferred$Signal)
    at java.lang.Object.wait(Object.java:503)
    at com.stumbleupon.async.Deferred.doJoin(Deferred.java:1138)
    - locked <0x00000007b08f0b08> (a com.stumbleupon.async.Deferred$Signal)
    at com.stumbleupon.async.Deferred.joinUninterruptibly(Deferred.java:1064)
    at net.opentsdb.core.TsdbQuery.run(TsdbQuery.java:491)
    at net.opentsdb.tsd.GraphHandler.doGraph(GraphHandler.java:200)
    at net.opentsdb.tsd.GraphHandler.execute(GraphHandler.java:124)
    at net.opentsdb.tsd.RpcHandler.handleHttpQuery(RpcHandler.java:283)
    at net.opentsdb.tsd.RpcHandler.messageReceived(RpcHandler.java:134)
    at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
    at org.jboss.netty.handler.timeout.IdleStateAwareChannelUpstreamHandler.handleUpstream(IdleStateAwareChannelUpstreamHandler.java:36)
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
    at org.jboss.netty.handler.timeout.IdleStateHandler.messageReceived(IdleStateHandler.java:294)
    at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
    at org.jboss.netty.handler.codec.http.HttpContentEncoder.messageReceived(HttpContentEncoder.java:82)
    at org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:88)
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
    at org.jboss.netty.handler.codec.http.HttpContentDecoder.messageReceived(HttpContentDecoder.java:108)
    at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
    at org.jboss.netty.handler.codec.http.HttpChunkAggregator.messageReceived(HttpChunkAggregator.java:145)
    at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
    at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296)
    at org.jboss.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:459)
    at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:536)
    at org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:435)
    at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
    at org.jboss.netty.channel.SimpleChannelHandler.messageReceived(SimpleChannelHandler.java:142)
    at org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:88)
    at net.opentsdb.tsd.ConnectionManager.handleUpstream(ConnectionManager.java:87)
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
    at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268)
    at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255)
    at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Worker #1" prio=10 tid=0x00007f60a422e000 nid=0x3f68 runnable [0x00007f6091e39000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab64b6b8> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab64b6a8> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab64b590> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"OpenTSDB I/O Boss #1" prio=10 tid=0x00007f60a420b000 nid=0x3f67 runnable [0x00007f6091f3a000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
    - locked <0x00000007ab5d2c80> (a sun.nio.ch.Util$2)
    - locked <0x00000007ab5d2c00> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000007ab5d2a58> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:102)
    at org.jboss.netty.channel.socket.nio.NioServerBoss.select(NioServerBoss.java:163)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
    at org.jboss.netty.channel.socket.nio.NioServerBoss.run(NioServerBoss.java:42)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

"Service Thread" daemon prio=10 tid=0x00007f60a409d000 nid=0x3f65 runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"C2 CompilerThread1" daemon prio=10 tid=0x00007f60a409a800 nid=0x3f64 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"C2 CompilerThread0" daemon prio=10 tid=0x00007f60a4097800 nid=0x3f63 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"Signal Dispatcher" daemon prio=10 tid=0x00007f60a4096000 nid=0x3f62 runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"Finalizer" daemon prio=10 tid=0x00007f60a4076800 nid=0x3f61 in Object.wait() [0x00007f6092e27000]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00000007aaa85608> (a java.lang.ref.ReferenceQueue$Lock)
    at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:135)
    - locked <0x00000007aaa85608> (a java.lang.ref.ReferenceQueue$Lock)
    at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:151)
    at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209)

"Reference Handler" daemon prio=10 tid=0x00007f60a4074800 nid=0x3f60 in Object.wait() [0x00007f6063d6a000]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00000007aaa85190> (a java.lang.ref.Reference$Lock)
    at java.lang.Object.wait(Object.java:503)
    at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:133)
    - locked <0x00000007aaa85190> (a java.lang.ref.Reference$Lock)

"VM Thread" prio=10 tid=0x00007f60a4070800 nid=0x3f5f runnable 

"GC task thread#0 (ParallelGC)" prio=10 tid=0x00007f60a401e000 nid=0x3f57 runnable 

"GC task thread#1 (ParallelGC)" prio=10 tid=0x00007f60a401f800 nid=0x3f58 runnable 

"GC task thread#2 (ParallelGC)" prio=10 tid=0x00007f60a4021800 nid=0x3f59 runnable 

"GC task thread#3 (ParallelGC)" prio=10 tid=0x00007f60a4023800 nid=0x3f5a runnable 

"GC task thread#4 (ParallelGC)" prio=10 tid=0x00007f60a4025000 nid=0x3f5b runnable 

"GC task thread#5 (ParallelGC)" prio=10 tid=0x00007f60a4027000 nid=0x3f5c runnable 

"GC task thread#6 (ParallelGC)" prio=10 tid=0x00007f60a4029000 nid=0x3f5d runnable 

"GC task thread#7 (ParallelGC)" prio=10 tid=0x00007f60a402b000 nid=0x3f5e runnable 

"VM Periodic Task Thread" prio=10 tid=0x00007f60a40a7800 nid=0x3f66 waiting on condition 

JNI global references: 171
mxk1235 commented 9 years ago

i've seen weird behavior like this, and our attempt for a workaround was to upgrade to HBase 0.98 and 1.x. and we haven't seen that exception since, but ymmv.

rclaire commented 9 years ago

Thanks mxk1235

manolama commented 9 years ago

@rclaire and you didn't enable the RPC timeouts right? There is a potential issue there with 0.94 and timeouts.

manolama commented 9 years ago

@rclaire Try out the next branch now. It's using the 1.7.1-SNAPSHOT of asynchbase with the fix for pre-protobuf RPCs.

manolama commented 8 years ago

Should be due to the AsyncHBase issue. Closing for now, please re-open if it pops up again please.