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Posted to common-issues@hadoop.apache.org by "Kihwal Lee (Resolved) (JIRA)" <ji...@apache.org> on 2012/02/22 17:13:49 UTC
[jira] [Resolved] (HADOOP-8050) Deadlock in metrics
[ https://issues.apache.org/jira/browse/HADOOP-8050?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kihwal Lee resolved HADOOP-8050.
--------------------------------
Resolution: Fixed
> Deadlock in metrics
> -------------------
>
> Key: HADOOP-8050
> URL: https://issues.apache.org/jira/browse/HADOOP-8050
> Project: Hadoop Common
> Issue Type: Bug
> Components: metrics
> Affects Versions: 0.20.204.0, 0.20.205.0, 0.23.0, 1.0.0
> Reporter: Kihwal Lee
> Assignee: Kihwal Lee
> Fix For: 1.0.1, 0.23.2
>
> Attachments: hadoop-8050-branch-1.patch.txt, hadoop-8050-branch-1.patch.txt, hadoop-8050-branch-1.patch.txt, hadoop-8050-branch-1.patch.txt, hadoop-8050-trunk.patch.txt, hadoop-8050-trunk.patch.txt, hadoop-8050-trunk.patch.txt, hadoop-8050.patch.txt
>
>
> The metrics serving thread and the periodic snapshot thread can deadlock.
> It happened a few times on one of namenodes we have. When it happens RPC works but the web ui and hftp stop working. I haven't look at the trunk too closely, but it might happen there too.
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