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Erik Krogen commented on HDFS-15808: ------------------------------------ Hi [~tomscut], the proposal looks pretty reasonable to me from a quick glance, but I'm not working in this area these days so can't allocate time at the moment. cc some folks that are hopefully more currently relevant: [~shv] [~daryn] [~vinayakumarb] [~kihwal] One thing I'll say is that I think "LockWarning" is not a great name, maybe "LockLongHoldTime" or something similar to be more clear about what it is measuring. > Add metrics for FSNamesystem read/write lock warnings > ----------------------------------------------------- > > Key: HDFS-15808 > URL: https://issues.apache.org/jira/browse/HDFS-15808 > Project: Hadoop HDFS > Issue Type: Wish > Components: hdfs > Reporter: tomscut > Assignee: tomscut > Priority: Major > Labels: hdfs, lock, metrics, pull-request-available > Time Spent: 1h 20m > Remaining Estimate: 0h > > To monitor how often read/write locks exceed thresholds, we can add two > metrics(ReadLockWarning/WriteLockWarning), which are exposed in JMX. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org