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Junping Du commented on HADOOP-9747: ------------------------------------ I haven't received any confirmation on side-effort of this fix belongs to a regression or not. We clean up all blockers/critical issues for 2.8.2 so far except this one. I don't think we should wait for this one to block whole release. I think a safe way here is to move target version to 2.8.3. [~eepayne], if you are comfortable to commit the patch, please land it to branch-2.8 for next 2.8 release train so we got more time for verification/discussions on side effort of this patch. > Reduce unnecessary UGI synchronization > -------------------------------------- > > Key: HADOOP-9747 > URL: https://issues.apache.org/jira/browse/HADOOP-9747 > Project: Hadoop Common > Issue Type: Bug > Components: security > Affects Versions: 0.23.0, 2.0.0-alpha, 3.0.0-alpha1 > Reporter: Daryn Sharp > Assignee: Daryn Sharp > Priority: Critical > Attachments: HADOOP-9747.2.branch-2.patch, HADOOP-9747.2.trunk.patch, > HADOOP-9747.branch-2.patch, HADOOP-9747.trunk.patch > > > Jstacks of heavily loaded NNs show up to dozens of threads blocking in the > UGI. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org