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From "Hadoop QA (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4878) Master crash when spliting hlog may cause data loss
Date Mon, 28 Nov 2011 08:38:41 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13158286#comment-13158286
] 

Hadoop QA commented on HBASE-4878:
----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12505294/hbase-4878v2.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  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.

    -1 javadoc.  The javadoc tool appears to have generated -162 warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    -1 findbugs.  The patch appears to introduce 67 new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

     -1 core tests.  The patch failed these unit tests:
                       org.apache.hadoop.hbase.client.TestAdmin
                  org.apache.hadoop.hbase.client.TestInstantSchemaChange

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/390//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/390//artifact/trunk/patchprocess/newPatchFindbugsWarnings.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/390//console

This message is automatically generated.
                
> Master crash when spliting hlog may cause data loss
> ---------------------------------------------------
>
>                 Key: HBASE-4878
>                 URL: https://issues.apache.org/jira/browse/HBASE-4878
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.92.0
>            Reporter: chunhui shen
>            Assignee: chunhui shen
>             Fix For: 0.92.0, 0.94.0
>
>         Attachments: hbase-4878.diff, hbase-4878v2.patch
>
>
> Let's see the code of HlogSplitter#splitLog(final FileStatus[] logfiles)
> {code}
> private List<Path> splitLog(final FileStatus[] logfiles) throws IOException {
>  try {
>   for (FileStatus log : logfiles) {
>   parseHLog(in, logPath, entryBuffers, fs, conf, skipErrors);
>  }
>  archiveLogs(srcDir, corruptedLogs, processedLogs, oldLogDir, fs, conf);
>  } finally {
>       status.setStatus("Finishing writing output logs and closing down.");
>       splits = outputSink.finishWritingAndClose();
>     }
> }
> {code}
> If master is killed, after finishing archiveLogs(srcDir, corruptedLogs, processedLogs,
oldLogDir, fs, conf), 
> but before finishing splits = outputSink.finishWritingAndClose();
> Log date would loss!

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