Return-Path: X-Original-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 6A42618623 for ; Sat, 16 Jan 2016 15:40:40 +0000 (UTC) Received: (qmail 91822 invoked by uid 500); 16 Jan 2016 15:40:40 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 91767 invoked by uid 500); 16 Jan 2016 15:40:40 -0000 Mailing-List: contact hdfs-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-issues@hadoop.apache.org Delivered-To: mailing list hdfs-issues@hadoop.apache.org Received: (qmail 91753 invoked by uid 99); 16 Jan 2016 15:40:40 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 16 Jan 2016 15:40:40 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id F40A52C1F58 for ; Sat, 16 Jan 2016 15:40:39 +0000 (UTC) Date: Sat, 16 Jan 2016 15:40:39 +0000 (UTC) From: "Tsz Wo Nicholas Sze (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HDFS-9294) DFSClient deadlock when close file and failed to renew lease MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/HDFS-9294?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15103235#comment-15103235 ] Tsz Wo Nicholas Sze commented on HDFS-9294: ------------------------------------------- +1 the branch-2.6 patch looks good. > DFSClient deadlock when close file and failed to renew lease > ------------------------------------------------------------- > > Key: HDFS-9294 > URL: https://issues.apache.org/jira/browse/HDFS-9294 > Project: Hadoop HDFS > Issue Type: Bug > Components: hdfs-client > Affects Versions: 2.2.0, 2.7.1 > Environment: Hadoop 2.2.0 > Reporter: DENG FEI > Assignee: Brahma Reddy Battula > Priority: Blocker > Fix For: 2.7.2 > > Attachments: HDFS-9294-002.patch, HDFS-9294-002.patch, HDFS-9294-branch-2.6.patch, HDFS-9294-branch-2.7.patch, HDFS-9294-branch-2.patch, HDFS-9294.patch > > > We found a deadlock at our HBase(0.98) cluster(and the Hadoop Version is 2.2.0),and it should be HDFS BUG,at the time our network is not stable. > below is the stack: > ************************************************************************************************************************************* > Found one Java-level deadlock: > ============================= > "MemStoreFlusher.1": > waiting to lock monitor 0x00007ff27cfa5218 (object 0x00000002fae5ebe0, a org.apache.hadoop.hdfs.LeaseRenewer), > which is held by "LeaseRenewer:hbaseadmin@hbase-ns-gdt-sh-marvel" > "LeaseRenewer:hbaseadmin@hbase-ns-gdt-sh-marvel": > waiting to lock monitor 0x00007ff2e67e16a8 (object 0x0000000486ce6620, a org.apache.hadoop.hdfs.DFSOutputStream), > which is held by "MemStoreFlusher.0" > "MemStoreFlusher.0": > waiting to lock monitor 0x00007ff27cfa5218 (object 0x00000002fae5ebe0, a org.apache.hadoop.hdfs.LeaseRenewer), > which is held by "LeaseRenewer:hbaseadmin@hbase-ns-gdt-sh-marvel" > Java stack information for the threads listed above: > =================================================== > "MemStoreFlusher.1": > at org.apache.hadoop.hdfs.LeaseRenewer.addClient(LeaseRenewer.java:216) > - waiting to lock <0x00000002fae5ebe0> (a org.apache.hadoop.hdfs.LeaseRenewer) > at org.apache.hadoop.hdfs.LeaseRenewer.getInstance(LeaseRenewer.java:81) > at org.apache.hadoop.hdfs.DFSClient.getLeaseRenewer(DFSClient.java:648) > at org.apache.hadoop.hdfs.DFSClient.endFileLease(DFSClient.java:659) > at org.apache.hadoop.hdfs.DFSOutputStream.close(DFSOutputStream.java:1882) > - locked <0x000000055b606cb0> (a org.apache.hadoop.hdfs.DFSOutputStream) > at org.apache.hadoop.fs.FSDataOutputStream$PositionCache.close(FSDataOutputStream.java:71) > at org.apache.hadoop.fs.FSDataOutputStream.close(FSDataOutputStream.java:104) > at org.apache.hadoop.hbase.io.hfile.AbstractHFileWriter.finishClose(AbstractHFileWriter.java:250) > at org.apache.hadoop.hbase.io.hfile.HFileWriterV2.close(HFileWriterV2.java:402) > at org.apache.hadoop.hbase.regionserver.StoreFile$Writer.close(StoreFile.java:974) > at org.apache.hadoop.hbase.regionserver.StoreFlusher.finalizeWriter(StoreFlusher.java:78) > at org.apache.hadoop.hbase.regionserver.DefaultStoreFlusher.flushSnapshot(DefaultStoreFlusher.java:75) > - locked <0x000000059869eed8> (a java.lang.Object) > at org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:812) > at org.apache.hadoop.hbase.regionserver.HStore$StoreFlusherImpl.flushCache(HStore.java:1974) > at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:1795) > at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:1678) > at org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:1591) > at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:472) > at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushOneForGlobalPressure(MemStoreFlusher.java:211) > at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.access$500(MemStoreFlusher.java:66) > at org.apache.hadoop.hbase.regionserver.MemStoreFlusher$FlushHandler.run(MemStoreFlusher.java:238) > at java.lang.Thread.run(Thread.java:744) > "LeaseRenewer:hbaseadmin@hbase-ns-gdt-sh-marvel": > at org.apache.hadoop.hdfs.DFSOutputStream.abort(DFSOutputStream.java:1822) > - waiting to lock <0x0000000486ce6620> (a org.apache.hadoop.hdfs.DFSOutputStream) > at org.apache.hadoop.hdfs.DFSClient.closeAllFilesBeingWritten(DFSClient.java:780) > at org.apache.hadoop.hdfs.DFSClient.abort(DFSClient.java:753) > at org.apache.hadoop.hdfs.LeaseRenewer.run(LeaseRenewer.java:453) > - locked <0x00000002fae5ebe0> (a org.apache.hadoop.hdfs.LeaseRenewer) > at org.apache.hadoop.hdfs.LeaseRenewer.access$700(LeaseRenewer.java:71) > at org.apache.hadoop.hdfs.LeaseRenewer$1.run(LeaseRenewer.java:298) > at java.lang.Thread.run(Thread.java:744) > "MemStoreFlusher.0": > at org.apache.hadoop.hdfs.LeaseRenewer.addClient(LeaseRenewer.java:216) > - waiting to lock <0x00000002fae5ebe0> (a org.apache.hadoop.hdfs.LeaseRenewer) > at org.apache.hadoop.hdfs.LeaseRenewer.getInstance(LeaseRenewer.java:81) > at org.apache.hadoop.hdfs.DFSClient.getLeaseRenewer(DFSClient.java:648) > at org.apache.hadoop.hdfs.DFSClient.endFileLease(DFSClient.java:659) > at org.apache.hadoop.hdfs.DFSOutputStream.close(DFSOutputStream.java:1882) > - locked <0x0000000486ce6620> (a org.apache.hadoop.hdfs.DFSOutputStream) > at org.apache.hadoop.fs.FSDataOutputStream$PositionCache.close(FSDataOutputStream.java:71) > at org.apache.hadoop.fs.FSDataOutputStream.close(FSDataOutputStream.java:104) > at org.apache.hadoop.hbase.io.hfile.AbstractHFileWriter.finishClose(AbstractHFileWriter.java:250) > at org.apache.hadoop.hbase.io.hfile.HFileWriterV2.close(HFileWriterV2.java:402) > at org.apache.hadoop.hbase.regionserver.StoreFile$Writer.close(StoreFile.java:974) > at org.apache.hadoop.hbase.regionserver.StoreFlusher.finalizeWriter(StoreFlusher.java:78) > at org.apache.hadoop.hbase.regionserver.DefaultStoreFlusher.flushSnapshot(DefaultStoreFlusher.java:75) > - locked <0x00000004888f6848> (a java.lang.Object) > at org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:812) > at org.apache.hadoop.hbase.regionserver.HStore$StoreFlusherImpl.flushCache(HStore.java:1974) > at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:1795) > at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:1678) > at org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:1591) > at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:472) > at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:435) > at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.access$800(MemStoreFlusher.java:66) > at org.apache.hadoop.hbase.regionserver.MemStoreFlusher$FlushHandler.run(MemStoreFlusher.java:253) > at java.lang.Thread.run(Thread.java:744) > Found 1 deadlock. > ********************************************************************** > the thread "MemStoreFlusher.0" is closing outputStream and remove it's lease ; > other side the daemon thread "LeaseRenewer" failed to connect active nn for renewing lease,but got SocketTimeoutException cause of network is not good,so abort outputstream. > then deadlock is made. > and it seems not solved at Hadoop 2.7.1 .If confirmed , we can fixed the issue. -- This message was sent by Atlassian JIRA (v6.3.4#6332)