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https://issues.apache.org/jira/browse/BOOKKEEPER-783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14137141#comment-14137141
]
Ivan Kelly commented on BOOKKEEPER-783:
---------------------------------------
If there's no objection by 4:00 GMT today, I'm going to submit this.
> Avoid running out of fds in MutlipleThreadReadTest
> --------------------------------------------------
>
> Key: BOOKKEEPER-783
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-783
> Project: Bookkeeper
> Issue Type: Bug
> Components: bookkeeper-server
> Reporter: Sijie Guo
> Assignee: Sijie Guo
> Labels: test
> Fix For: 4.3.0
>
> Attachments: BOOKKEEPER-783.patch
>
>
> {code}
> org.jboss.netty.channel.ChannelException: Failed to create a selector.
> at
> org.jboss.netty.channel.socket.nio.AbstractNioSelector.openSelector(AbstractNioSelector.java:343)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioSelector.<init>(AbstractNioSelector.java:100)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioWorker.<init>(AbstractNioWorker.java:52)
> at
> org.jboss.netty.channel.socket.nio.NioWorker.<init>(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:143)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioWorkerPool.init(AbstractNioWorkerPool.java:81)
> at
> org.jboss.netty.channel.socket.nio.NioWorkerPool.<init>(NioWorkerPool.java:39)
> at
> org.jboss.netty.channel.socket.nio.NioWorkerPool.<init>(NioWorkerPool.java:33)
> at
> org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory.<init>(NioClientSocketChannelFactory.java:151)
> at
> org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory.<init>(NioClientSocketChannelFactory.java:116)
> at org.apache.bookkeeper.client.BookKeeper.<init>(BookKeeper.java:204)
> at
> org.apache.bookkeeper.client.BookKeeperTestClient.<init>(BookKeeperTestClient.java:50)
> at
> org.apache.bookkeeper.test.MultipleThreadReadTest.createClients(MultipleThreadReadTest.java:73)
> at
> org.apache.bookkeeper.test.MultipleThreadReadTest.multiLedgerMultiThreadRead(MultipleThreadReadTest.java:282)
> at
> org.apache.bookkeeper.test.MultipleThreadReadTest.test1Ledger50ThreadsRead(MultipleThreadReadTest.java:326)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
> at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
> at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
> at
> org.junit.internal.runners.statements.FailOnTimeout$1.run(FailOnTimeout.java:28)
> Caused by: java.io.IOException: Too many open files
> at sun.nio.ch.EPollArrayWrapper.epollCreate(Native Method)
> at sun.nio.ch.EPollArrayWrapper.<init>(EPollArrayWrapper.java:69)
> at sun.nio.ch.EPollSelectorImpl.<init>(EPollSelectorImpl.java:52)
> at
> sun.nio.ch.EPollSelectorProvider.openSelector(EPollSelectorProvider.java:18)
> at java.nio.channels.Selector.open(Selector.java:209)
> at
> org.jboss.netty.channel.socket.nio.SelectorUtil.open(SelectorUtil.java:63)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioSelector.openSelector(AbstractNioSelector.java:341)
> {code}
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