Szehon Ho created HIVE-10761:
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Summary: Create codahale-based metrics system for Hive
Key: HIVE-10761
URL: https://issues.apache.org/jira/browse/HIVE-10761
Project: Hive
Issue Type: New Feature
Reporter: Szehon Ho
There is a current Hive metrics system that hooks up to a JMX reporting, but
all its measurements, models are custom.
This is to make another metrics system that will be based on Codahale (ie
yammer, dropwizard), which has the following advantage:
* Well-defined metric model for frequently-needed metrics (ie JVM metrics)
* Well-defined measurements for all metrics (ie max, mean, stddev, mean_rate,
etc),
* Built-in reporting frameworks like JMX, Console, Log, JSON webserver
It is used for many projects, including several Apache projects like Oozie.
Overall, monitoring tools should find it easier to understand these common
metric, measurement, reporting models.
As part of this change, Hive's JVMPauseMonitor (that was using Hadoop's private
one) is now hooked into the new metric framework to give pause time counts.
The existing metric subsystem will be kept and can be enabled if backward
compatibility is desired.
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