[jira] [Commented] (HBASE-12769) Replication fails to delete all corresponding zk nodes when peer is removed

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-12769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14939905#comment-14939905 ] 

Hadoop QA commented on HBASE-12769:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12764176/HBASE-12769-trunk-v1.patch
  against master branch at commit 76463a36f5648f42cdcf64019a825c1e3f0c4fe1.
  ATTACHMENT ID: 12764176

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

    {color:green}+1 tests included{color}.  The patch appears to include 9 new or modified tests.

    {color:red}-1 javac{color}.  The patch appears to cause mvn compile goal to fail with Hadoop version 2.4.0.

    Compilation errors resume:
    [ERROR] COMPILATION ERROR : 
[ERROR] /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/hbase/hbase-server/src/main/java/org/apache/hadoop/hbase/util/HBaseFsck.java:[128,41] cannot find symbol
[ERROR] /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/hbase/hbase-server/src/main/java/org/apache/hadoop/hbase/util/HBaseFsck.java:[3287,5] cannot find symbol
[ERROR] /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/hbase/hbase-server/src/main/java/org/apache/hadoop/hbase/util/HBaseFsck.java:[3287,38] cannot find symbol
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.2:compile (default-compile) on project hbase-server: Compilation failure: Compilation failure:
[ERROR] /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/hbase/hbase-server/src/main/java/org/apache/hadoop/hbase/util/HBaseFsck.java:[128,41] cannot find symbol
[ERROR] symbol:   class ReplicationChecker
[ERROR] location: package org.apache.hadoop.hbase.util.hbck
[ERROR] /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/hbase/hbase-server/src/main/java/org/apache/hadoop/hbase/util/HBaseFsck.java:[3287,5] cannot find symbol
[ERROR] symbol:   class ReplicationChecker
[ERROR] location: class org.apache.hadoop.hbase.util.HBaseFsck
[ERROR] /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/hbase/hbase-server/src/main/java/org/apache/hadoop/hbase/util/HBaseFsck.java:[3287,38] cannot find symbol
[ERROR] symbol:   class ReplicationChecker
[ERROR] location: class org.apache.hadoop.hbase.util.HBaseFsck
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :hbase-server
    

Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/15844//console

This message is automatically generated.

> Replication fails to delete all corresponding zk nodes when peer is removed
> ---------------------------------------------------------------------------
>
>                 Key: HBASE-12769
>                 URL: https://issues.apache.org/jira/browse/HBASE-12769
>             Project: HBase
>          Issue Type: Improvement
>          Components: Replication
>    Affects Versions: 0.99.2
>            Reporter: Jianwei Cui
>            Priority: Minor
>         Attachments: HBASE-12769-trunk-v0.patch, HBASE-12769-trunk-v1.patch
>
>
> When removing a peer, the client side will delete peerId under peersZNode node; then alive region servers will be notified and delete corresponding hlog queues under its rsZNode of replication. However, if there are failed servers whose hlog queues have not been transferred by alive servers(this likely happens if setting a big value to "replication.sleep.before.failover" and lots of region servers restarted), these hlog queues won't be deleted after the peer is removed. I think remove_peer should guarantee all corresponding zk nodes have been removed after it completes; otherwise, if we create a new peer with the same peerId with the removed one, there might be unexpected data to be replicated.



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