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From "Dawid Weiss (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-4510) when a test's heart beats it should also throw up (dump stack of all threads)
Date Sat, 27 Oct 2012 20:35:11 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-4510?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13485496#comment-13485496
] 

Dawid Weiss commented on LUCENE-4510:
-------------------------------------

Funnily -- that's the hardest part about it... there's just no API to get a PID of the forked
process -- I think I've seen a patch to JDK 1.8 somewhere that adds it but for now there's
just none. It'd have to be platform-specific trickery to get it.
                
> when a test's heart beats it should also throw up (dump stack of all threads)
> -----------------------------------------------------------------------------
>
>                 Key: LUCENE-4510
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4510
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Michael McCandless
>            Assignee: Dawid Weiss
>
> We've had numerous cases where tests were hung but the "operator" of that particular
Jenkins instance struggles to properly get a stack dump for all threads and eg accidentally
kills the process instead (rather awful that the same powerful tool "kill" can be used to
get stack traces and to destroy the process...).
> Is there some way the test infra could do this for us, eg when it prints the HEARTBEAT
message?

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