Call frequency and duration metrics for HiveMetaStore via jmx
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Key: HIVE-1818
URL: https://issues.apache.org/jira/browse/HIVE-1818
Project: Hive
Issue Type: New Feature
Components: Metastore
Reporter: Sushanth Sowmyan
Priority: Minor
As recently brought up in the hive-dev mailing list, it'd be useful if the
HiveMetaStore had some sort of instrumentation capability so as to measure
frequency of calls to various calls on the HiveMetaStore and the duration of
time spent in these calls.
There are already incrementCounter() and logStartFunction() /
logStartTableFunction() ,etc calls in HiveMetaStore, and they could be
refactored/repurposed to make calls that expose JMX MBeans as well. Or, a
Metrics subsystem could be introduced which made calls to
incrementCounter()/etc as a refactor.
It might also be possible to specify a -D parameter that the Metrics subsystem
could use to determine whether or not to be enabled, and if so, on to what
port. And once we have the capability to instrument and expose MBeans, it might
also be possible for other subsystems to also adopt and use this system.
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