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Kihwal Lee commented on HADOOP-8050: ------------------------------------ Filed HADOOP-8073 per Luke's comment. Thanks for the review. > 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: 0.24.0, 1.1.0, 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. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira