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https://issues.apache.org/jira/browse/HADOOP-7529?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13083665#comment-13083665
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Todd Lipcon commented on HADOOP-7529:
-------------------------------------
Yep, the wiki is here: http://wiki.apache.org/hadoop/HowToUseJCarder
Recently I've been using the more experimental "lockclasses" branch from my
github, which supports analyzing readwrite locks, but the rest of the
instructions should be the same. I'm working on getting access to the new build
infrastructure so I can set up hudson jobs to run jcarder on a regular basis
> Possible deadlock in metrics2
> -----------------------------
>
> Key: HADOOP-7529
> URL: https://issues.apache.org/jira/browse/HADOOP-7529
> Project: Hadoop Common
> Issue Type: Bug
> Components: metrics
> Affects Versions: 0.23.0
> Reporter: Todd Lipcon
> Assignee: Luke Lu
> Priority: Critical
> Fix For: 0.23.0
>
> Attachments: hadoop-7529-v1.patch, hadoop-7529-v2.patch,
> metrics-deadlock.png, metrics-shutdown.png
>
>
> Lock cycle detected by jcarder between MetricsSystemImpl and
> DefaultMetricsSystem
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