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Erik Krogen commented on HDFS-13686: ------------------------------------ Nice one, thanks for the work [~lukmajercak]! I have thought about this as well. Patch LGTM. If you're interested in improving these metrics further, I think HDFS-11021 will be a big win. The OTHER category can become a very significant contributing factor to NN lock time and having a more detailed breakdown of which operations are causing that would be very helpful. > Add overall metrics for FSNamesystemLock > ---------------------------------------- > > Key: HDFS-13686 > URL: https://issues.apache.org/jira/browse/HDFS-13686 > Project: Hadoop HDFS > Issue Type: Improvement > Components: hdfs, namenode > Reporter: Lukas Majercak > Assignee: Lukas Majercak > Priority: Major > Attachments: HDFS-13686.000.patch > > > Currently, we have R/W FSNamesystemLock metrics per operation. I'd be useful > to have an overall metric too. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org