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From "Phabricator (JIRA)" <>
Subject [jira] [Commented] (HIVE-4125) Expose metastore JMX metrics
Date Mon, 11 Mar 2013 16:35:16 GMT


Phabricator commented on HIVE-4125:

sxyuan has commented on the revision "HIVE-4125 [jira] Expose metastore JMX metrics".

  common/src/java/org/apache/hadoop/hive/common/metrics/ I considered doing
that, but it's not a counter tracked by this class, only a metric calculated from the other
two. I think it would be better to have whatever needs the average time to recalculate the
value instead of getting it from the MetricsMBean (and having to wait for a lock on the metrics
  common/src/java/org/apache/hadoop/hive/common/metrics/ Done. I originally
didn't want to be throwing exceptions but I realized it's possible for a call to be made on
a new scope that hasn't been closed yet.


To: kevinwilfong, sxyuan

> Expose metastore JMX metrics
> ----------------------------
>                 Key: HIVE-4125
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>          Components: Metastore
>    Affects Versions: 0.11.0
>            Reporter: Samuel Yuan
>            Assignee: Samuel Yuan
>            Priority: Trivial
>         Attachments: HIVE-4125.HIVE-4125.HIVE-4125.D9123.1.patch, HIVE-4125.HIVE-4125.HIVE-4125.D9123.2.patch
> Add a safe way to access the metrics stored for each MetricsScope, so that they can be
used outside of JMX.

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