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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7878) recoverFileLease does not check return value of recoverLease
Date Thu, 21 Mar 2013 18:57:17 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13609306#comment-13609306
] 

Hadoop QA commented on HBASE-7878:
----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12574836/7878-trunk-v15.patch
  against trunk revision .

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

    {color:green}+1 tests included{color}.  The patch appears to include 6 new or modified
tests.

    {color:green}+1 hadoop2.0{color}.  The patch compiles against the hadoop 2.0 profile.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any warning messages.

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

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

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

    {color:green}+1 lineLengths{color}.  The patch does not introduce lines longer than 100

  {color:green}+1 site{color}.  The mvn site goal succeeds with this patch.

     {color:red}-1 core tests{color}.  The patch failed these unit tests:
                       org.apache.hadoop.hbase.master.TestRollingRestart

     {color:red}-1 core zombie tests{color}.  There are 1 zombie test(s): 

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/4945//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4945//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4945//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4945//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4945//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4945//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4945//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop1-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4945//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4945//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/4945//console

This message is automatically generated.
                
> recoverFileLease does not check return value of recoverLease
> ------------------------------------------------------------
>
>                 Key: HBASE-7878
>                 URL: https://issues.apache.org/jira/browse/HBASE-7878
>             Project: HBase
>          Issue Type: Bug
>          Components: util
>    Affects Versions: 0.95.0, 0.94.6
>            Reporter: Eric Newton
>            Assignee: Ted Yu
>            Priority: Critical
>             Fix For: 0.95.0, 0.98.0, 0.94.7
>
>         Attachments: 7878.94, 7878-94.addendum, 7878-94.addendum2, 7878-trunk.addendum,
7878-trunk.addendum2, 7878-trunk-v10.txt, 7878-trunk-v11-test.txt, 7878-trunk-v12.txt, 7878-trunk-v13.txt,
7878-trunk-v14.txt, 7878-trunk-v15.patch, 7878-trunk-v2.txt, 7878-trunk-v3.txt, 7878-trunk-v4.txt,
7878-trunk-v5.txt, 7878-trunk-v6.txt, 7878-trunk-v7.txt, 7878-trunk-v8.txt, 7878-trunk-v9.txt,
7878-trunk-v9.txt
>
>
> I think this is a problem, so I'm opening a ticket so an HBase person takes a look.
> Apache Accumulo has moved its write-ahead log to HDFS. I modeled the lease recovery for
Accumulo after HBase's lease recovery.  During testing, we experienced data loss.  I found
it is necessary to wait until recoverLease returns true to know that the file has been truly
closed.  In FSHDFSUtils, the return result of recoverLease is not checked. In the unit tests
created to check lease recovery in HBASE-2645, the return result of recoverLease is always
checked.
> I think FSHDFSUtils should be modified to check the return result, and wait until it
returns true.

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