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Hadoop QA commented on HADOOP-8050: ----------------------------------- -1 overall. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12514152/hadoop-8050.patch.txt against trunk revision . +1 @author. The patch does not contain any @author tags. -1 tests included. The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch. -1 patch. The patch command could not apply the patch. Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/586//console This message is automatically generated. > 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, 1.0.0 > Reporter: Kihwal Lee > Assignee: Kihwal Lee > Fix For: 1.1.0, 1.0.1 > > Attachments: 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