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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3443) Unable to catch up edits during standby to active switch due to NPE
Date Wed, 21 Jan 2015 09:40:36 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3443?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14285409#comment-14285409
] 

Hadoop QA commented on HDFS-3443:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12693518/HDFS-3443-007.patch
  against trunk revision 6b17eb9.

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:red}-1 tests included{color}.  The patch doesn't appear to include any new or modified
tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:red}-1 core tests{color}.  The patch failed these unit tests in hadoop-hdfs-project/hadoop-hdfs:

                  org.apache.hadoop.hdfs.server.namenode.ha.TestRetryCacheWithHA
                  org.apache.hadoop.hdfs.server.balancer.TestBalancer

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/9289//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/9289//console

This message is automatically generated.

> Unable to catch up edits during standby to active switch due to NPE
> -------------------------------------------------------------------
>
>                 Key: HDFS-3443
>                 URL: https://issues.apache.org/jira/browse/HDFS-3443
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: auto-failover, ha
>            Reporter: suja s
>            Assignee: Vinayakumar B
>         Attachments: HDFS-3443-003.patch, HDFS-3443-004.patch, HDFS-3443-005.patch, HDFS-3443-006.patch,
HDFS-3443-007.patch, HDFS-3443_1.patch, HDFS-3443_1.patch
>
>
> Start NN
> Let NN standby services be started.
> Before the editLogTailer is initialised start ZKFC and allow the activeservices start
to proceed further.
> Here editLogTailer.catchupDuringFailover() will throw NPE.
> void startActiveServices() throws IOException {
>     LOG.info("Starting services required for active state");
>     writeLock();
>     try {
>       FSEditLog editLog = dir.fsImage.getEditLog();
>       
>       if (!editLog.isOpenForWrite()) {
>         // During startup, we're already open for write during initialization.
>         editLog.initJournalsForWrite();
>         // May need to recover
>         editLog.recoverUnclosedStreams();
>         
>         LOG.info("Catching up to latest edits from old active before " +
>             "taking over writer role in edits logs.");
>         editLogTailer.catchupDuringFailover();
> {noformat}
> 2012-05-18 16:51:27,585 WARN org.apache.hadoop.ipc.Server: IPC Server Responder, call
org.apache.hadoop.ha.HAServiceProtocol.getServiceStatus from XX.XX.XX.55:58003: output error
> 2012-05-18 16:51:27,586 WARN org.apache.hadoop.ipc.Server: IPC Server handler 8 on 8020,
call org.apache.hadoop.ha.HAServiceProtocol.transitionToActive from XX.XX.XX.55:58004: error:
java.lang.NullPointerException
> java.lang.NullPointerException
> 	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startActiveServices(FSNamesystem.java:602)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNode$NameNodeHAContext.startActiveServices(NameNode.java:1287)
> 	at org.apache.hadoop.hdfs.server.namenode.ha.ActiveState.enterState(ActiveState.java:61)
> 	at org.apache.hadoop.hdfs.server.namenode.ha.HAState.setStateInternal(HAState.java:63)
> 	at org.apache.hadoop.hdfs.server.namenode.ha.StandbyState.setState(StandbyState.java:49)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNode.transitionToActive(NameNode.java:1219)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.transitionToActive(NameNodeRpcServer.java:978)
> 	at org.apache.hadoop.ha.protocolPB.HAServiceProtocolServerSideTranslatorPB.transitionToActive(HAServiceProtocolServerSideTranslatorPB.java:107)
> 	at org.apache.hadoop.ha.proto.HAServiceProtocolProtos$HAServiceProtocolService$2.callBlockingMethod(HAServiceProtocolProtos.java:3633)
> 	at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:427)
> 	at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:916)
> 	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1692)
> 	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1688)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at javax.security.auth.Subject.doAs(Subject.java:396)
> 	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1232)
> 	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1686)
> 2012-05-18 16:51:27,586 INFO org.apache.hadoop.ipc.Server: IPC Server handler 9 on 8020
caught an exception
> java.nio.channels.ClosedChannelException
> 	at sun.nio.ch.SocketChannelImpl.ensureWriteOpen(SocketChannelImpl.java:133)
> 	at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:324)
> 	at org.apache.hadoop.ipc.Server.channelWrite(Server.java:2092)
> 	at org.apache.hadoop.ipc.Server.access$2000(Server.java:107)
> 	at org.apache.hadoop.ipc.Server$Responder.processResponse(Server.java:930)
> 	at org.apache.hadoop.ipc.Server$Responder.doRespond(Server.java:994)
> 	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1738)
> {noformat}



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