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From "Ayush Saxena (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-14075) NPE while Edit Logging
Date Sun, 18 Nov 2018 14:01:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-14075?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ayush Saxena updated HDFS-14075:
--------------------------------
    Attachment: HDFS-14075-04.patch

> NPE while Edit Logging
> ----------------------
>
>                 Key: HDFS-14075
>                 URL: https://issues.apache.org/jira/browse/HDFS-14075
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Ayush Saxena
>            Assignee: Ayush Saxena
>            Priority: Critical
>         Attachments: HDFS-14075-01.patch, HDFS-14075-02.patch, HDFS-14075-03.patch, HDFS-14075-04.patch
>
>
> {noformat}
> 2018-11-10 18:59:38,427 FATAL org.apache.hadoop.hdfs.server.namenode.FSEditLog: Exception
while edit logging: null
> java.lang.NullPointerException
>  at org.apache.hadoop.hdfs.server.namenode.FSEditLog.doEditTransaction(FSEditLog.java:481)
>  at org.apache.hadoop.hdfs.server.namenode.FSEditLogAsync$Edit.logEdit(FSEditLogAsync.java:288)
>  at org.apache.hadoop.hdfs.server.namenode.FSEditLogAsync.run(FSEditLogAsync.java:232)
>  at java.lang.Thread.run(Thread.java:745)
> 2018-11-10 18:59:38,532 INFO org.apache.hadoop.util.ExitUtil: Exiting with status 1:
Exception while edit logging: null
> 2018-11-10 18:59:38,552 INFO org.apache.hadoop.hdfs.server.namenode.NameNode: SHUTDOWN_MSG:
> {noformat}
> Before NPE Received the following Exception
> {noformat}
> INFO org.apache.hadoop.ipc.Server: IPC Server handler 9 on 65110, call Call#23241 Retry#0
org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol.rollEditLog from XXXXXXXX
> java.io.IOException: Unable to start log segment 7964819: too few journals successfully
started.
> 	at org.apache.hadoop.hdfs.server.namenode.FSEditLog.startLogSegment(FSEditLog.java:1385)
> 	at org.apache.hadoop.hdfs.server.namenode.FSEditLog.startLogSegmentAndWriteHeaderTxn(FSEditLog.java:1395)
> 	at org.apache.hadoop.hdfs.server.namenode.FSEditLog.rollEditLog(FSEditLog.java:1319)
> 	at org.apache.hadoop.hdfs.server.namenode.FSImage.rollEditLog(FSImage.java:1352)
> 	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.rollEditLog(FSNamesystem.java:4669)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.rollEditLog(NameNodeRpcServer.java:1293)
> 	at org.apache.hadoop.hdfs.protocolPB.NamenodeProtocolServerSideTranslatorPB.rollEditLog(NamenodeProtocolServerSideTranslatorPB.java:146)
> 	at org.apache.hadoop.hdfs.protocol.proto.NamenodeProtocolProtos$NamenodeProtocolService$2.callBlockingMethod(NamenodeProtocolProtos.java:12974)
> 	at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:524)
> 	at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:991)
> 	at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:878)
> 	at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:824)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at javax.security.auth.Subject.doAs(Subject.java:422)
> 	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1729)
> 	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2684)
> Caused by: java.io.IOException: starting log segment 7964819 failed for too many journals
> 	at org.apache.hadoop.hdfs.server.namenode.JournalSet.mapJournalsAndReportErrors(JournalSet.java:412)
> 	at org.apache.hadoop.hdfs.server.namenode.JournalSet.startLogSegment(JournalSet.java:207)
> 	at org.apache.hadoop.hdfs.server.namenode.FSEditLog.startLogSegment(FSEditLog.java:1383)
> 	... 15 more
> {noformat}



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