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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7086) Enhance ResourceChecker to log stack trace for potentially hanging threads
Date Sat, 03 Nov 2012 22:41:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7086?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13490118#comment-13490118
] 

Lars Hofhansl commented on HBASE-7086:
--------------------------------------

trunk v3 looks to me. +1

                
> Enhance ResourceChecker to log stack trace for potentially hanging threads
> --------------------------------------------------------------------------
>
>                 Key: HBASE-7086
>                 URL: https://issues.apache.org/jira/browse/HBASE-7086
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>             Fix For: 0.94.3, 0.96.0
>
>         Attachments: 7086.94, 7086-94.addendum, 7086-trunk.txt, 7086-trunk-v2.txt, 7086-trunk-v3.txt,
testHFileCleaner.out
>
>
> Currently ResourceChecker logs a line similar to the following if it detects potential
thread leak:
> {code}
> 2012-11-02 10:18:59,299 INFO  [main] hbase.ResourceChecker(157): after master.cleaner.TestHFileCleaner#testTTLCleaner:
44 threads (was 43), 145 file descriptors (was 145). 0 connections,  -thread leak?-
> {code}
> We should enhance the log to include stack trace of the potentially hanging thread(s)
> This work was motivated when I investigated test failure in HBASE-6796

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