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https://issues.apache.org/jira/browse/MAPREDUCE-1375?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12832751#action_12832751
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Todd Lipcon commented on MAPREDUCE-1375:
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I think I got this figured out. The issue is that the test actually tries to
write some "roses are red" text to ls's stdin. Very infrequently, the ls will
actually complete before the data can be flushed, so the task gets a "Broken
pipe" exception - see MAPREDUCE-1481. I'm actually unsure whether
MAPREDUCE-1481 is a bug, but the easy fix for this test is to make the input ""
so no data gets written into ls's stdin.
I'm running the test in a loop with this fix now. If it keeps going for a
couple hours without failure I'll post a patch. (before, this loop would fail
after about 10 minutes usually)
> TestFileArgs fails intermittently
> ---------------------------------
>
> Key: MAPREDUCE-1375
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1375
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: test
> Reporter: Amar Kamat
> Assignee: Todd Lipcon
> Fix For: 0.22.0
>
> Attachments: TEST-org.apache.hadoop.streaming.TestFileArgs.txt
>
>
> TestFileArgs failed once for me with the following error
> {code}
> expected:<[job.jar
> sidefile
> tmp
> ]> but was:<[]>
> sidefile
> tmp
> ]> but was:<[]>
> at
> org.apache.hadoop.streaming.TestStreaming.checkOutput(TestStreaming.java:107)
> at
> org.apache.hadoop.streaming.TestStreaming.testCommandLine(TestStreaming.java:123)
> {code}
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