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https://issues.apache.org/jira/browse/TEZ-4145?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17083456#comment-17083456
]
Ashutosh Chauhan commented on TEZ-4145:
---------------------------------------
+1
> Reduce lock contention in TezSpillRecord
> ----------------------------------------
>
> Key: TEZ-4145
> URL: https://issues.apache.org/jira/browse/TEZ-4145
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: Rajesh Balamohan
> Assignee: László Bodor
> Priority: Major
> Attachments: TEZ-4145.01.patch, TEZ-4145.02.patch, TEZ-4145.03.patch,
> TEZ-4145.04.patch
>
>
> Observed the following stack trace when debugging one of the jobs.
> Though {{TezSpillRecord}} uses {{LocalFileSystem}}, it ends up getting
> blocked due to FileSystem cache.
> It would be good to have a way of passing RawLocalFileSystem to
> TezSpillRecord.
> {noformat}
> "Task-Executor-11" #273 daemon prio=5 os_prio=0 tid=0x00007fe204664800
> nid=0x2343d2 waiting on condition [0x00007fe1fcfda000]
> java.lang.Thread.State: TIMED_WAITING (sleeping)
> at java.lang.Thread.sleep(Native Method)
> at org.apache.hadoop.ipc.Client.stop(Client.java:1329)
> at org.apache.hadoop.ipc.ClientCache.stopClient(ClientCache.java:113)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.close(ProtobufRpcEngine.java:302)
> at org.apache.hadoop.ipc.RPC.stopProxy(RPC.java:677)
> at
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.close(ClientNamenodeProtocolTranslatorPB.java:304)
> at org.apache.hadoop.ipc.RPC.stopProxy(RPC.java:672)
> at
> org.apache.hadoop.io.retry.DefaultFailoverProxyProvider.close(DefaultFailoverProxyProvider.java:57)
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler$ProxyDescriptor.close(RetryInvocationHandler.java:234)
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler.close(RetryInvocationHandler.java:444)
> at org.apache.hadoop.ipc.RPC.stopProxy(RPC.java:677)
> at
> org.apache.hadoop.hdfs.DFSClient.closeConnectionToNamenode(DFSClient.java:592)
> at org.apache.hadoop.hdfs.DFSClient.close(DFSClient.java:633)
> - locked <0x00007fed071063a0> (a org.apache.hadoop.hdfs.DFSClient)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.close(DistributedFileSystem.java:1358)
> at org.apache.hadoop.fs.FileSystem$Cache.closeAll(FileSystem.java:3463)
> - locked <0x00007fe63d000000> (a org.apache.hadoop.fs.FileSystem$Cache)
> at org.apache.hadoop.fs.FileSystem.closeAllForUGI(FileSystem.java:576)
> at
> org.apache.hadoop.hive.llap.daemon.impl.TaskRunnerCallable.callInternal(TaskRunnerCallable.java:299)
> at
> org.apache.hadoop.hive.llap.daemon.impl.TaskRunnerCallable.callInternal(TaskRunnerCallable.java:93)
> at org.apache.tez.common.CallableWithNdc.call(CallableWithNdc.java:36)
> at
> com.google.common.util.concurrent.TrustedListenableFutureTask$TrustedFutureInterruptibleTask.runInterruptibly(TrustedListenableFutureTask.java:108)
> at
> com.google.common.util.concurrent.InterruptibleTask.run(InterruptibleTask.java:41)
> at
> com.google.common.util.concurrent.TrustedListenableFutureTask.run(TrustedListenableFutureTask.java:77)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> "New I/O worker #44" #80 prio=5 os_prio=0 tid=0x00007fede2a03000 nid=0x233f2b
> waiting for monitor entry [0x00007fe20cd3d000]
> java.lang.Thread.State: BLOCKED (on object monitor)
> at
> org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:3345)
> - waiting to lock <0x00007fe63d000000> (a
> org.apache.hadoop.fs.FileSystem$Cache)
> at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:3320)
> at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:479)
> at org.apache.hadoop.fs.FileSystem.getLocal(FileSystem.java:435)
> at
> org.apache.tez.runtime.library.common.sort.impl.TezSpillRecord.<init>(TezSpillRecord.java:65)
> at
> org.apache.tez.runtime.library.common.sort.impl.TezSpillRecord.<init>(TezSpillRecord.java:58)
> at
> org.apache.hadoop.hive.llap.shufflehandler.IndexCache.readIndexFileToCache(IndexCache.java:121)
> at
> org.apache.hadoop.hive.llap.shufflehandler.IndexCache.getIndexInformation(IndexCache.java:70)
> at
> org.apache.hadoop.hive.llap.shufflehandler.ShuffleHandler$Shuffle.getMapOutputInfo(ShuffleHandler.java:887)
> at
> org.apache.hadoop.hive.llap.shufflehandler.ShuffleHandler$Shuffle.populateHeaders(ShuffleHandler.java:908)
> at
> org.apache.hadoop.hive.llap.shufflehandler.ShuffleHandler$Shuffle.messageReceived(ShuffleHandler.java:805)
> at
> org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
> at
> org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
> at
> org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
> at
> org.jboss.netty.handler.stream.ChunkedWriteHandler.handleUpstream(ChunkedWriteHandler.java:142)
> at
> org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
> at
> org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
> at
> org.jboss.netty.handler.codec.http.HttpChunkAggregator.messageReceived(HttpChunkAggregator.java:145)
> at
> org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
> at
> org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
> at
> org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
> at
> org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296)
> at
> org.jboss.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:459)
> at
> org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:536)
> at
> org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:435)
> at
> org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
> at
> org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
> at
> org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
> at
> org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268)
> at
> org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255)
> at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:337)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
> at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
> at
> org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
> at
> org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> {noformat}
> Note: For the IPC sleep issue, it is related to
> https://issues.apache.org/jira/browse/HADOOP-16126
>
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