Samarth Jain created PHOENIX-4276:
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Summary: Surface metrics on statistics collection
Key: PHOENIX-4276
URL: https://issues.apache.org/jira/browse/PHOENIX-4276
Project: Phoenix
Issue Type: Bug
Reporter: Samarth Jain
It would be good to get an insight on how stats collection is doing over time.
An initial set of metrics that I can think of would be:
Time taken to compute stats (reading cells and computing their size)
Time taken to commit stats per physical table.
Number of guide posts collected per physical table
Number of guide posts collected per region.
Number of regions on which stats collection happened per physical table
Number of times stats was collected due to major compaction vs update stats per
physical table
If possible, figure out if stats was collected because minor compaction was
promoted to major compaction and surface a metric for it.
Because most of the collection work happens on server side, one option would be
to see how HBase's metrics are surfaced (my guess is JMX) and follow the same
pattern. Or we could possibly use the hbase-metrics-api module but that is an
HBase 1.4 thing. Another option would be see PHOENIX-3807 for some inspiration.
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