java.lang.Thread.State: WAITING (parking)

The details are a bit vague, but my node has stopped responding. It seems to still be accepting data, but all threads seem to be deadlocked; nothing is coming back out.

[root@iota centos]# cat /proc/loadavg
0.16 0.08 0.21 1/223 13797

[root@iota centos]# cat /proc/meminfo | grep Mem
MemTotal:        7816112 kB
MemFree:          537880 kB
MemAvailable:    1291764 kB

[root@iota centos]# ps aux|grep java|grep -v grep
root      7655 87.0 71.9 7265760 5620308 ?     Ssl  Dec02 7465:13 /bin/java -Xms4g -Xmx4g -jar /opt/iota/bin/iri.latest.jar -c /opt/iota/bin/iota.ini

[root@iota centos]# netstat -lpn|grep 14265
tcp6     129      0 :::14265                :::*                    LISTEN      7655/java

[root@iota centos]# time curl localhost:14265
♥

real    0m47.190s
user    0m0.004s
sys     0m0.011s

I don't have jstack, and did not launch with debug enabled. Here is the output of kill -3 7655

threads.txt

They seem to all be in the same state:

 "XNIO-1 task-19" #1943 prio=5 os_prio=0 tid=0x00007f936402ebd0 nid=0x967 waiting on condition [0x00007f93407ad000]
 java.lang.Thread.State: WAITING (parking)
 at sun.misc.Unsafe.park(Native Method)
 - parking to wait for  <0x00000006c4d592e0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
 at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
 at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
 at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
 at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 at java.lang.Thread.run(Thread.java:748)

dead

iotaledger / iri

java.lang.Thread.State: WAITING (parking) #394