Sanjeet Malhotra created HBASE-29233:
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Summary: Capture scan metrics at region level
Key: HBASE-29233
URL: https://issues.apache.org/jira/browse/HBASE-29233
Project: HBase
Issue Type: Improvement
Components: Client, metrics
Reporter: Sanjeet Malhotra
Assignee: Sanjeet Malhotra
In my company, we have a requirement that we would like to track scan metrics
for requests belonging to certain use cases at region level along with getting
info about where that region was hosted (RS) at the time of scan. This will
help us in knowing to which all regions and RS the request was hitting and
contribution of each region scan/RS in latency. Thus, I plan to store region
name and RS server name in scan metrics object only and capture a list of Scan
metrics (one per region scanned).
The capturing of scan metrics at this finer granularity can be "opt-in" per
Scan request and can be enabled via Scan attribute similar to how Scan Metrics
are enabled.
I would like to backport this change to HBase 3 and HBase 2.6 and 2.5.
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