[HIVE-2619] Add hook to run in metastore's endFunction which can collect more fb303 counters - ASF JIRA

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Details

Type: Improvement
Status: Closed
Priority: Major
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 0.8.0
Component/s: None
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Reviewed

Description

Create the potential for hooks to run in the endFunction method of HMSHandler which take the name of a function and whether or not it succeeded. Also, override getCounters from fb303 to allow these hooks to add counters which they collect, should this be desired. These hooks can be similar to EventListeners, but they should be more generic.