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Steve Loughran commented on MAPREDUCE-7307: ------------------------------------------- merged to trunk, just doing backport (including move to unshaded guava) & retest of the new test case > Potential thread leak in LocatedFileStatusFetcher > ------------------------------------------------- > > Key: MAPREDUCE-7307 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-7307 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: job submission > Reporter: Zhihua Deng > Assignee: Zhihua Deng > Priority: Major > > We see that when using LocatedFileStatusFetcher to get file infos In > parallel, if the listStatus thread is interrupted, the executor service in > LocatedFileStatusFetcher is left unclosed, the thread stack will like this: > {noformat} > "GetFileInfo #63" #125 daemon prio=5 os_prio=0 tid=0x00007f6198106800 > nid=0x881 waiting on condition [0x00007f60d9fde000] > java.lang.Thread.State: WAITING (parking) > at sun.misc.Unsafe.park(Native Method) > - parking to wait for <0x0000000082e810a8> (a > java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject) > at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175) > at > java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039) > at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442) > at > java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) > at java.lang.Thread.run(Thread.java:748){noformat} > This caused by if condition.await() throws InterruptedException, the method > `shutDownNow` for the executor service would not be called as a result, > should move such resource releasing call into the finally block. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: mapreduce-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: mapreduce-issues-h...@hadoop.apache.org