[HBASE-16549] Procedure v2 - Add new AM metrics

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 2.0.0
• Component/s: proc-v2, Region Assignment

Release Note

Following AMv2 procedures are modified to override onSubmit(), onFinish() hooks provided by HBASE-17888 to do
metrics calculations when procedures are submitted and finshed:
* AssignProcedure
* UnassignProcedure
* MergeTableRegionProcedure
* SplitTableRegionProcedure
* ServerCrashProcedure

Following metrics is collected for each of the above procedure during lifetime of a process:
* Total number of requests submitted for a type of procedure
* Histogram of runtime in milliseconds for successfully completed procedures
* Total number of failed procedures

As we are moving away from Hadoop's metric2, hbase-metrics-api module is used for newly added metrics.

• Assignee: Umesh Agashe
• Reporter: Matteo Bertozzi
• Created: 02/Sep/16 02:30
• Updated: 17/Jun/22 18:06
• Resolved: 06/Jun/17 21:21

Description

With the new AM we can add a bunch of metrics

• assign/unassign time
• server crash time
• grouping related metrics? (how many batch we do, and similar?)

Issue Links

• depends upon: HBASE-17888 Add generic methods for updating metrics on start and end of a procedure execution
• is a child of: HBASE-17923 Provide generic framework to collect internal and feature metrics for all procedures in ProcV2
• is related to: HBASE-17945 Procedure V2: Add new Snapshot metrics to Snapshot procedure
• links to: AMv2 metrics changes
• links to: Review Board (hbase-14614)