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jsevellec / cassandra-unit

Utility tool to load Data into Cassandra to help you writing good isolated JUnit Test into your application
GNU Lesser General Public License v3.0
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OOM - unable to create new native thread #74

Open prowave opened 10 years ago

prowave commented 10 years ago

Jeremy,

I am on the Spring-Data-Cassandra team and we are making good use of cassandra-unit. Nice work!

We have an issue that only occurs on Macs, and we have a large number of test cases. As you can imagine, all of our integration tests use cassandra-unit. :)

It seems almost like each test doesn't thoroughly clean up after itself before forking a new cassandra instance. We have tried with and without forking and still get the error. Thanks for the help.

Have you seen this error before in your testing?

If not, we can help reproduce it.

java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Thread.java:713) at java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:949) at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1371) at org.jboss.netty.util.internal.DeadLockProofWorker.start(DeadLockProofWorker.java:38) at org.jboss.netty.channel.socket.nio.AbstractNioSelector.openSelector(AbstractNioSelector.java:343) at org.jboss.netty.channel.socket.nio.AbstractNioSelector.(AbstractNioSelector.java:95) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.(AbstractNioWorker.java:53) at org.jboss.netty.channel.socket.nio.NioWorker.(NioWorker.java:45) at org.jboss.netty.channel.socket.nio.NioWorkerPool.createWorker(NioWorkerPool.java:45) at org.jboss.netty.channel.socket.nio.NioWorkerPool.createWorker(NioWorkerPool.java:28) at org.jboss.netty.channel.socket.nio.AbstractNioWorkerPool.newWorker(AbstractNioWorkerPool.java:99) at org.jboss.netty.channel.socket.nio.AbstractNioWorkerPool.init(AbstractNioWorkerPool.java:69) at org.jboss.netty.channel.socket.nio.NioWorkerPool.(NioWorkerPool.java:39) at org.jboss.netty.channel.socket.nio.NioWorkerPool.(NioWorkerPool.java:33) at org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory.(NioClientSocketChannelFactory.java:151) at org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory.(NioClientSocketChannelFactory.java:116) at com.datastax.driver.core.Connection$Factory.(Connection.java:406) at com.datastax.driver.core.Connection$Factory.(Connection.java:417) at com.datastax.driver.core.Cluster$Manager.(Cluster.java:787) at com.datastax.driver.core.Cluster$Manager.(Cluster.java:739) at com.datastax.driver.core.Cluster.(Cluster.java:80) at com.datastax.driver.core.Cluster.(Cluster.java:67) at com.datastax.driver.core.Cluster$Builder.build(Cluster.java:708) at org.springframework.cassandra.test.integration.AbstractEmbeddedCassandraIntegrationTest.cluster(AbstractEmbeddedCassandraIntegrationTest.java:68) at org.springframework.cassandra.test.integration.AbstractEmbeddedCassandraIntegrationTest.connect(AbstractEmbeddedCassandraIntegrationTest.java:73) at org.springframework.cassandra.test.integration.AbstractEmbeddedCassandraIntegrationTest.(AbstractEmbeddedCassandraIntegrationTest.java:32) at org.springframework.cassandra.test.integration.core.template.CassandraOperationsTest.(CassandraOperationsTest.java:68)

jsevellec commented 10 years ago

Hi,

It's a pleasure to hear that you're using cassandra-unit.

unfortunately it's the first time i've seen this error.

xiaodong-xie commented 10 years ago

Hello, @prowave,

Can you try to avoid this issue by tweak the memory settings of JVM (-Xmx and -Xss)?

And if you are using 32-Bit JVM, maybe try your tests on 64-Bit JVM?

ghost commented 9 years ago

My company is also running into this issue. We are also using Spring Data Cassandra and using Spring Cassandra Unit.

justinhrobbins commented 9 years ago

I am seeing the same issue on OSX. Strangely, it runs without error on another OSX machine.

jsevellec commented 5 years ago

Hey guys,

Is this still an issue?