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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13811) Splitting WALs, we are filtering out too many edits -> DATALOSS
Date Fri, 05 Jun 2015 20:00:01 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13811?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14575109#comment-14575109
] 

Hadoop QA commented on HBASE-13811:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12738020/13811.v8.branch-1.txt
  against branch-1 branch at commit 67c463f63e3c48efd9e1281166b707a3a806a2ad.
  ATTACHMENT ID: 12738020

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

    {color:green}+1 tests included{color}.  The patch appears to include 16 new or modified
tests.

    {color:red}-1 javac{color}.  The patch appears to cause mvn compile goal to fail with
Hadoop version 2.4.1.

    Compilation errors resume:
    [ERROR] COMPILATION ERROR : 
[ERROR] /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/DisabledWALProvider.java:[85,17]
error: DisabledWAL is not abstract and does not override abstract method startCacheFlush(byte[],Set<byte[]>)
in WAL
[ERROR] /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/DisabledWALProvider.java:[190,19]
error: startCacheFlush(byte[],Set<byte[]>) in DisabledWAL cannot implement startCacheFlush(byte[],Set<byte[]>)
in WAL
[ERROR]   return type boolean is not compatible with Long
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.5.1:compile
(default-compile) on project hbase-server: Compilation failure: Compilation failure:
[ERROR] /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/DisabledWALProvider.java:[85,17]
error: DisabledWAL is not abstract and does not override abstract method startCacheFlush(byte[],Set<byte[]>)
in WAL
[ERROR] /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/DisabledWALProvider.java:[190,19]
error: startCacheFlush(byte[],Set<byte[]>) in DisabledWAL cannot implement startCacheFlush(byte[],Set<byte[]>)
in WAL
[ERROR] return type boolean is not compatible with Long
[ERROR] /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/DisabledWALProvider.java:[189,4]
error: method does not override or implement a method from a supertype
[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/14308//console

This message is automatically generated.

> Splitting WALs, we are filtering out too many edits -> DATALOSS
> ---------------------------------------------------------------
>
>                 Key: HBASE-13811
>                 URL: https://issues.apache.org/jira/browse/HBASE-13811
>             Project: HBase
>          Issue Type: Bug
>          Components: wal
>    Affects Versions: 2.0.0, 1.2.0
>            Reporter: stack
>            Assignee: stack
>            Priority: Critical
>             Fix For: 2.0.0, 1.2.0
>
>         Attachments: 13811.branch-1.txt, 13811.branch-1.txt, 13811.txt, 13811.v2.branch-1.txt,
13811.v3.branch-1.txt, 13811.v3.branch-1.txt, 13811.v4.branch-1.txt, 13811.v5.branch-1.txt,
13811.v6.branch-1.txt, 13811.v6.branch-1.txt, 13811.v7.branch-1.txt, 13811.v8.branch-1.txt,
HBASE-13811-v1.testcase.patch, HBASE-13811.testcase.patch, startCacheFlush.diff
>
>
> I've been running ITBLLs against branch-1 around HBASE-13616 (move of ServerShutdownHandler
to pv2). I have come across an instance of dataloss. My patch for HBASE-13616 was in place
so can only think it the cause (but cannot see how). When we split the logs, we are skipping
legit edits. Digging.



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