Sanjeet Malhotra created PHOENIX-7528:
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Summary: Add metrics for overall wall clock query wait time in
Phoenix client thread pool and total time spent in executing HBase scan tasks
Key: PHOENIX-7528
URL: https://issues.apache.org/jira/browse/PHOENIX-7528
Project: Phoenix
Issue Type: Improvement
Affects Versions: 5.3.0
Reporter: Sanjeet Malhotra
Currently, we track task wait time and task end to end time for each HBase scan
task. But when we try to consume these metrics we combine them by taking sum of
these metrics across all the tasks. By taking sum of task wait time and task
end to end time across all the tasks we are making these metrics non consumable
if someone wants to know the wall clock time spent by query in Phoenix client
thread pool or total wall clock time taken by HBase scan tasks.
Thus, we can introduce two new metrics for the same. So, these two new metrics
combined with TASK_EXECUTION_TIME metric can give us good indication of time
spent in various stages in Phoenix client thread pool.
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