org.jboss.netty.channel.ChannelException: Failed to create a selector.

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    java.io.IOException: Too many open files

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    org.jboss.netty.channel.ChannelException: Failed to create a selector.
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Root Cause Analysis

  1. java.io.IOException

    打开的文件过多( this mean "Open file too much")

    at sun.nio.ch.EPollArrayWrapper.epollCreate()
  2. Java RT
    Selector.open
    1. sun.nio.ch.EPollArrayWrapper.epollCreate(Native Method)[?:1.8.0_101]
    2. sun.nio.ch.EPollArrayWrapper.<init>(EPollArrayWrapper.java:130)[?:1.8.0_101]
    3. sun.nio.ch.EPollSelectorImpl.<init>(EPollSelectorImpl.java:69)[?:1.8.0_101]
    4. sun.nio.ch.EPollSelectorProvider.openSelector(EPollSelectorProvider.java:36)[?:1.8.0_101]
    5. java.nio.channels.Selector.open(Selector.java:227)[?:1.8.0_101]
    5 frames
  3. Netty
    NioWorkerPool.<init>
    1. org.jboss.netty.channel.socket.nio.SelectorUtil.open(SelectorUtil.java:63)[netty-3.10.5.Final.jar:?]
    2. org.jboss.netty.channel.socket.nio.AbstractNioSelector.openSelector(AbstractNioSelector.java:360)[netty-3.10.5.Final.jar:?]
    3. org.jboss.netty.channel.socket.nio.AbstractNioSelector.<init>(AbstractNioSelector.java:100)[netty-3.10.5.Final.jar:?]
    4. org.jboss.netty.channel.socket.nio.AbstractNioWorker.<init>(AbstractNioWorker.java:52)[netty-3.10.5.Final.jar:?]
    5. org.jboss.netty.channel.socket.nio.NioWorker.<init>(NioWorker.java:45)[netty-3.10.5.Final.jar:?]
    6. org.jboss.netty.channel.socket.nio.NioWorkerPool.newWorker(NioWorkerPool.java:44)[netty-3.10.5.Final.jar:?]
    7. org.jboss.netty.channel.socket.nio.NioWorkerPool.newWorker(NioWorkerPool.java:28)[netty-3.10.5.Final.jar:?]
    8. org.jboss.netty.channel.socket.nio.AbstractNioWorkerPool.init(AbstractNioWorkerPool.java:80)[netty-3.10.5.Final.jar:?]
    9. org.jboss.netty.channel.socket.nio.NioWorkerPool.<init>(NioWorkerPool.java:39)[netty-3.10.5.Final.jar:?]
    10. org.jboss.netty.channel.socket.nio.NioWorkerPool.<init>(NioWorkerPool.java:33)[netty-3.10.5.Final.jar:?]
    10 frames
  4. ElasticSearch
    AbstractLifecycleComponent.start
    1. org.elasticsearch.transport.netty.NettyTransport.createClientBootstrap(NettyTransport.java:346)[elasticsearch-2.3.4.jar:2.3.4]
    2. org.elasticsearch.transport.netty.NettyTransport.doStart(NettyTransport.java:279)[elasticsearch-2.3.4.jar:2.3.4]
    3. org.elasticsearch.common.component.AbstractLifecycleComponent.start(AbstractLifecycleComponent.java:68)[elasticsearch-2.3.4.jar:2.3.4]
    4. org.elasticsearch.transport.TransportService.doStart(TransportService.java:182)[elasticsearch-2.3.4.jar:2.3.4]
    5. org.elasticsearch.common.component.AbstractLifecycleComponent.start(AbstractLifecycleComponent.java:68)[elasticsearch-2.3.4.jar:2.3.4]
    5 frames
  5. org.xbib.elasticsearch
    StandardContext.execute
    1. org.xbib.elasticsearch.helper.client.TransportClient$Builder.build(TransportClient.java:139)[elasticsearch-helper-2.3.4.0.jar:?]
    2. org.xbib.elasticsearch.helper.client.BaseTransportClient.createClient(BaseTransportClient.java:73)[elasticsearch-helper-2.3.4.0.jar:?]
    3. org.xbib.elasticsearch.helper.client.BaseMetricTransportClient.init(BaseMetricTransportClient.java:40)[elasticsearch-helper-2.3.4.0.jar:?]
    4. org.xbib.elasticsearch.helper.client.BulkTransportClient.init(BulkTransportClient.java:96)[elasticsearch-helper-2.3.4.0.jar:?]
    5. org.xbib.elasticsearch.helper.client.ClientBuilder.toBulkTransportClient(ClientBuilder.java:113)[elasticsearch-helper-2.3.4.0.jar:?]
    6. org.xbib.elasticsearch.jdbc.strategy.standard.StandardSink.createClient(StandardSink.java:348)[elasticsearch-jdbc-2.3.4.0.jar:?]
    7. org.xbib.elasticsearch.jdbc.strategy.standard.StandardSink.beforeFetch(StandardSink.java:100)[elasticsearch-jdbc-2.3.4.0.jar:?]
    8. org.xbib.elasticsearch.jdbc.strategy.standard.StandardContext.beforeFetch(StandardContext.java:183)[elasticsearch-jdbc-2.3.4.0.jar:?]
    9. org.xbib.elasticsearch.jdbc.strategy.standard.StandardContext.execute(StandardContext.java:164)[elasticsearch-jdbc-2.3.4.0.jar:?]
    9 frames
  6. org.xbib.tools
    JDBCImporter.newRequest
    1. org.xbib.tools.JDBCImporter.process(JDBCImporter.java:199)[elasticsearch-jdbc-2.3.4.0.jar:?]
    2. org.xbib.tools.JDBCImporter.newRequest(JDBCImporter.java:185)[elasticsearch-jdbc-2.3.4.0.jar:?]
    3. org.xbib.tools.JDBCImporter.newRequest(JDBCImporter.java:51)[elasticsearch-jdbc-2.3.4.0.jar:?]
    3 frames
  7. org.xbib.pipeline
    AbstractPipeline.call
    1. org.xbib.pipeline.AbstractPipeline.call(AbstractPipeline.java:50)[elasticsearch-jdbc-2.3.4.0.jar:?]
    2. org.xbib.pipeline.AbstractPipeline.call(AbstractPipeline.java:16)[elasticsearch-jdbc-2.3.4.0.jar:?]
    2 frames
  8. Java RT
    Thread.run
    1. java.util.concurrent.FutureTask.run(FutureTask.java:266)[?:1.8.0_101]
    2. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[?:1.8.0_101]
    3. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[?:1.8.0_101]
    4. java.lang.Thread.run(Thread.java:745)[?:1.8.0_101]
    4 frames