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https://issues.apache.org/jira/browse/HADOOP-2092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12562163#action_12562163
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Owen O'Malley commented on HADOOP-2092:
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Never try to be tricky with threading, it is not worth the non-deterministic
problems. The primary problem is that the optimizer and the multiple cpus all
have caches and unless you use locking, bad things happen. Furthermore, this is
not performance critical code. We have had to fix numerous problems like this
in the Java code with EXACTLY this problem (with boolean done flags, even).
Don't do this.
> Pipes C++ task does not die even if the Java tasks die
> ------------------------------------------------------
>
> Key: HADOOP-2092
> URL: https://issues.apache.org/jira/browse/HADOOP-2092
> Project: Hadoop Core
> Issue Type: Bug
> Components: pipes
> Reporter: Amareshwari Sri Ramadasu
> Assignee: Amareshwari Sri Ramadasu
> Priority: Blocker
> Fix For: 0.16.0
>
> Attachments: patch-2092.1.txt, patch-2092.1.txt, patch-2092.txt,
> patch-2092.txt, patch-2092.txt, patch-2092.txt
>
>
> Pipes process does not die, when the java map task dies.
> Pipes process does not die even when the cluster is down.
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