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https://issues.apache.org/jira/browse/MAPREDUCE-5679?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Liyin Liang updated MAPREDUCE-5679:
-----------------------------------
Assignee: Liyin Liang
Target Version/s: 2.4.0
Status: Patch Available (was: Open)
> 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
> Attachments: 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，because the history file is not found.
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