Details
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Bug
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Status: Closed
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Major
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Resolution: Fixed
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2.2.0
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None
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None
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Reviewed
Description
org.apache.hadoop.mapreduce.v2.hs.TestJobHistoryParsing can fail because of race condition.
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)
In the checkHistoryParsing() function, after
HistoryFileInfo fileInfo = jobHistory.getJobFileInfo(jobId);
a thread named MoveIntermediateToDone will be launched to move history file from done_intermediate to done directory.
If the history file is moved,
HistoryViewer viewer = new HistoryViewer(fc.makeQualified( fileInfo.getHistoryFile()).toString(), conf, true);
will throw IOException，because the history file is not found.