Return-Path: X-Original-To: apmail-hbase-issues-archive@www.apache.org Delivered-To: apmail-hbase-issues-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 3E95D10225 for ; Tue, 9 Apr 2013 23:18:18 +0000 (UTC) Received: (qmail 80916 invoked by uid 500); 9 Apr 2013 23:18:18 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 80880 invoked by uid 500); 9 Apr 2013 23:18:17 -0000 Mailing-List: contact issues-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list issues@hbase.apache.org Received: (qmail 80871 invoked by uid 99); 9 Apr 2013 23:18:17 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 09 Apr 2013 23:18:17 +0000 Date: Tue, 9 Apr 2013 23:18:17 +0000 (UTC) From: "Dave Latham (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HBASE-8096) [replication] NPE while replicating a log that is acquiring a new block from HDFS 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/HBASE-8096?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Dave Latham updated HBASE-8096: ------------------------------- Status: Open (was: Patch Available) > [replication] NPE while replicating a log that is acquiring a new block from HDFS > ---------------------------------------------------------------------------------- > > Key: HBASE-8096 > URL: https://issues.apache.org/jira/browse/HBASE-8096 > Project: HBase > Issue Type: Bug > Affects Versions: 0.94.5 > Reporter: Ian Friedman > Assignee: Dave Latham > Attachments: HBASE-8096.0.94.patch, HBASE-8096.patch > > > We're getting an NPE during replication, which causes replication for that RegionServer to stop until we restart it. > {noformat} > 2013-03-10 12:49:12,679 ERROR org.apache.hadoop.hbase.replication.regionserver.ReplicationSource: Unexpected exception in ReplicationSource, currentPath=hdfs://hmaster1:9000/hbase/.logs/hslave1177,60020,1362549511446/hslave1177%2C60020%2C1362549511446.1362944946489 > java.lang.NullPointerException > at org.apache.hadoop.hdfs.DFSClient$DFSInputStream.updateBlockInfo(DFSClient.java:1882) > at org.apache.hadoop.hdfs.DFSClient$DFSInputStream.openInfo(DFSClient.java:1855) > at org.apache.hadoop.hdfs.DFSClient$DFSInputStream.(DFSClient.java:1831) > at org.apache.hadoop.hdfs.DFSClient.open(DFSClient.java:578) > at org.apache.hadoop.hdfs.DistributedFileSystem.open(DistributedFileSystem.java:154) > at org.apache.hadoop.fs.FilterFileSystem.open(FilterFileSystem.java:108) > at org.apache.hadoop.io.SequenceFile$Reader.openFile(SequenceFile.java:1495) > at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader$WALReader.openFile(SequenceFileLogReader.java:62) > at org.apache.hadoop.io.SequenceFile$Reader.(SequenceFile.java:1482) > at org.apache.hadoop.io.SequenceFile$Reader.(SequenceFile.java:1475) > at org.apache.hadoop.io.SequenceFile$Reader.(SequenceFile.java:1470) > at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader$WALReader.(SequenceFileLogReader.java:55) > at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader.reset(SequenceFileLogReader.java:308) > at org.apache.hadoop.hbase.replication.regionserver.ReplicationHLogReaderManager.openReader(ReplicationHLogReaderManager.java:69) > at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.openReader(ReplicationSource.java:505) > at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.run(ReplicationSource.java:313) > {noformat} > Some extra digging into the DataNode and NameNode logs makes this seem related to HBASE-7530 and HDFS-4380 > Here's the relevant snipped portions of the RS, DN, and NN logs: > {noformat} > RS 2013-03-10 12:49:12,618 INFO org.apache.hadoop.hbase.replication.regionserver.ReplicationSourceManager: Going to report log #hslave1177%2C60020%2C1362549511446.1362944946489 for position 59670826 in hdfs://hmaster1:9000/hbase/.logs/hslave1177,60020,1362549511446/hslave1177%2C60020%2C1362549511446.1362944946489 > RS 2013-03-10 12:49:12,621 DEBUG org.apache.hadoop.hbase.regionserver.LogRoller: HLog roll requested > RS 2013-03-10 12:49:12,623 DEBUG org.apache.hadoop.hbase.replication.regionserver.ReplicationSource: Replicated in total: 31500300 > RS 2013-03-10 12:49:12,623 DEBUG org.apache.hadoop.hbase.replication.regionserver.ReplicationSource: Opening log for replication hslave1177%2C60020%2C1362549511446.1362944946489 at 59670826 > NN 2013-03-10 12:49:12,627 INFO org.apache.hadoop.hdfs.StateChange: BLOCK* NameSystem.allocateBlock: /hbase/.logs/hslave1177,60020,1362549511446/hslave1177%2C60020%2C1362549511446.1362944946489. blk_6905758215335505153_656717631 > RS 2013-03-10 12:49:12,679 ERROR org.apache.hadoop.hbase.replication.regionserver.ReplicationSource: Unexpected exception in ReplicationSource, currentPath=hdfs://hmaster1:9000/hbase/.logs/hslave1177,60020,1362549511446/hslave1177%2C60020%2C1362549511446.1362944946489 > DN 2013-03-10 12:49:12,680 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: Receiving block blk_6905758215335505153_656717631 src: /192.168.44.1:43503 dest: /192.168.44.1:50010 > NN 2013-03-10 12:49:12,804 INFO org.apache.hadoop.hdfs.StateChange: BLOCK* NameSystem.fsync: file /hbase/.logs/hslave1177,60020,1362549511446/hslave1177%2C60020%2C1362549511446.1362944946489 for DFSClient_hb_rs_hslave1177,60020,1362549511446 > {noformat} -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira