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Akira Ajisaka commented on HDFS-11180: -------------------------------------- We deeply investigated this issue and found probably this deadlock happens only when dfs.namenode.edits.dir includes JournalNodes which are not included in dfs.namenode.shared.edits.dir. Hi [~abmodi], what's your setting? Many thanks to [~sarutak] and [~iwasakims] for the research. > Intermittent deadlock in NameNode when failover happens. > -------------------------------------------------------- > > Key: HDFS-11180 > URL: https://issues.apache.org/jira/browse/HDFS-11180 > Project: Hadoop HDFS > Issue Type: Bug > Components: namenode > Affects Versions: 2.6.0 > Reporter: Abhishek Modi > Assignee: Akira Ajisaka > Priority: Blocker > Labels: high-availability > Fix For: 2.8.0, 2.7.4, 3.0.0-alpha2, 2.6.6 > > Attachments: HDFS-11180-branch-2.01.patch, > HDFS-11180-branch-2.6.01.patch, HDFS-11180-branch-2.7.01.patch, > HDFS-11180-branch-2.8.01.patch, HDFS-11180.00.patch, HDFS-11180.01.patch, > HDFS-11180.02.patch, HDFS-11180.03.patch, HDFS-11180.04.patch, jstack.log > > > It is happening due to metrics getting updated at the same time when failover > is happening. Please find attached jstack at that point of time. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org