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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5679) TestJobHistoryParsing has race condition
Date Wed, 18 Dec 2013 11:10:23 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5679?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13851596#comment-13851596
] 

Hudson commented on MAPREDUCE-5679:
-----------------------------------

FAILURE: Integrated in Hadoop-Yarn-trunk #425 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/425/])
MAPREDUCE-5679. TestJobHistoryParsing has race condition. Contributed by Liyin Liang (jlowe:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1551616)
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/TestJobHistoryParsing.java


> TestJobHistoryParsing has race condition
> ----------------------------------------
>
>                 Key: MAPREDUCE-5679
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5679
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 2.2.0
>            Reporter: Liyin Liang
>            Assignee: Liyin Liang
>             Fix For: 3.0.0, 2.4.0
>
>         Attachments: MAPREDUCE-5679-2.diff, MAPREDUCE-5679-3.diff, MAPREDUCE-5679.diff
>
>
> org.apache.hadoop.mapreduce.v2.hs.TestJobHistoryParsing can fail because of race condition.
> {noformat}
> testHistoryParsingWithParseErrors(org.apache.hadoop.mapreduce.v2.hs.TestJobHistoryParsing)
 Time elapsed: 4.102 sec  <<< ERROR!
> java.io.IOException: Unable to initialize History Viewer
>         at org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:520)
>         at org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:398)
>         at org.apache.hadoop.fs.ChecksumFileSystem$ChecksumFSInputChecker.<init>(ChecksumFileSystem.java:137)
>         at org.apache.hadoop.fs.ChecksumFileSystem.open(ChecksumFileSystem.java:339)
>         at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:798)
>         at org.apache.hadoop.mapreduce.jobhistory.JobHistoryParser.<init>(JobHistoryParser.java:86)
>         at org.apache.hadoop.mapreduce.jobhistory.HistoryViewer.<init>(HistoryViewer.java:85)
>         at org.apache.hadoop.mapreduce.v2.hs.TestJobHistoryParsing.checkHistoryParsing(TestJobHistoryParsing.java:339)
>         at org.apache.hadoop.mapreduce.v2.hs.TestJobHistoryParsing.testHistoryParsingWithParseErrors(TestJobHistoryParsing.java:125)
> {noformat}
> In the checkHistoryParsing() function, after 
> {code}
> HistoryFileInfo fileInfo = jobHistory.getJobFileInfo(jobId);
> {code}
> a thread named MoveIntermediateToDone will be launched to move history file from done_intermediate
to done directory.
> If the history file is moved, 
> {code}
>       HistoryViewer viewer = new HistoryViewer(fc.makeQualified(
>           fileInfo.getHistoryFile()).toString(), conf, true);
> {code}
> will throw IOException´╝îbecause the history file is not found.



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