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https://issues.apache.org/jira/browse/SPARK-12826?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alan Braithwaite updated SPARK-12826:
-------------------------------------
Priority: Critical (was: Major)
> Spark Workers do not attempt reconnect or exit on connection failure.
> ---------------------------------------------------------------------
>
> Key: SPARK-12826
> URL: https://issues.apache.org/jira/browse/SPARK-12826
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 1.6.0
> Reporter: Alan Braithwaite
> Priority: Critical
>
> Spark version 1.6.0 Hadoop 2.6.0 CDH 5.4.2
> We're running behind a tcp proxy (10.14.12.11:7077 is the tcp proxy listen
> address in the example, upstreaming to the spark master listening on 9682 and
> a different IP)
> To reproduce, I started a spark worker, let it successfully connect to the
> master through the proxy, then tcpkill'd the connection on the Worker.
> Nothing is logged from the code handling reconnection attempts.
> {code}
> 16/01/14 18:23:30 INFO Worker: Connecting to master
> spark-master.example.com:7077...
> 16/01/14 18:23:30 DEBUG TransportClientFactory: Creating new connection to
> spark-master.example.com/10.14.12.11:7077
> 16/01/14 18:23:30 DEBUG TransportClientFactory: Connection to
> spark-master.example.com/10.14.12.11:7077 successful, running bootstraps...
> 16/01/14 18:23:30 DEBUG TransportClientFactory: Successfully created
> connection to spark-master.example.com/10.14.12.11:7077 after 1 ms (0 ms
> spent in bootstraps)
> 16/01/14 18:23:30 DEBUG Recycler: -Dio.netty.recycler.maxCapacity.default:
> 262144
> 16/01/14 18:23:30 INFO Worker: Successfully registered with master
> spark://0.0.0.0:9682
> 16/01/14 18:23:30 INFO Worker: Worker cleanup enabled; old application
> directories will be deleted in: /var/lib/spark/work
> 16/01/14 18:36:52 DEBUG SecurityManager: user=null aclsEnabled=false
> viewAcls=spark
> 16/01/14 18:36:52 DEBUG SecurityManager: user=null aclsEnabled=false
> viewAcls=spark
> 16/01/14 18:36:57 DEBUG SecurityManager: user=null aclsEnabled=false
> viewAcls=spark
> 16/01/14 18:36:57 DEBUG SecurityManager: user=null aclsEnabled=false
> viewAcls=spark
> 16/01/14 18:41:31 WARN TransportChannelHandler: Exception in connection from
> spark-master.example.com/10.14.12.11:7077
> java.io.IOException: Connection reset by peer
> at sun.nio.ch.FileDispatcherImpl.read0(Native Method)
> at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)
> at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)
> at sun.nio.ch.IOUtil.read(IOUtil.java:192)
> at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380)
> at
> io.netty.buffer.PooledUnsafeDirectByteBuf.setBytes(PooledUnsafeDirectByteBuf.java:313)
> at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:881)
> at
> io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:242)
> at
> io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:119)
> at
> io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)
> at
> io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
> at
> io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
> at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
> at
> io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
> at java.lang.Thread.run(Thread.java:745)
> -- nothing more is logged, going on 15 minutes --
> $ ag -C5 Disconn
> core/src/main/scala/org/apache/spark/deploy/worker/Worker.scala
> 313 registrationRetryTimer.foreach(_.cancel(true))
> 314 registrationRetryTimer = None
> 315 }
> 316
> 317 private def registerWithMaster() {
> 318 // onDisconnected may be triggered multiple times, so don't attempt
> registration
> 319 // if there are outstanding registration attempts scheduled.
> 320 registrationRetryTimer match {
> 321 case None =>
> 322 registered = false
> 323 registerMasterFutures = tryRegisterAllMasters()
> --
> 549 finishedExecutors.values.toList, drivers.values.toList,
> 550 finishedDrivers.values.toList, activeMasterUrl, cores, memory,
> 551 coresUsed, memoryUsed, activeMasterWebUiUrl))
> 552 }
> 553
> 554 override def onDisconnected(remoteAddress: RpcAddress): Unit = {
> 555 if (master.exists(_.address == remoteAddress)) {
> 556 logInfo(s"$remoteAddress Disassociated !")
> 557 masterDisconnected()
> 558 }
> 559 }
> 560
> 561 private def masterDisconnected() {
> 562 logError("Connection to master failed! Waiting for master to
> reconnect...")
> 563 connected = false
> 564 registerWithMaster()
> 565 }
> 566
> {code}
> Please let me know if there is any other information I can provide.
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