Todd Lipcon created HBASE-5897:
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Summary: prePut coprocessor hook causing substantial CPU usage
Key: HBASE-5897
URL: https://issues.apache.org/jira/browse/HBASE-5897
Project: HBase
Issue Type: Bug
Affects Versions: 0.92.0
Reporter: Todd Lipcon
I was running an insert workload against trunk under oprofile and saw that a
significant portion of CPU usage was going to calling the "prePut" coprocessor
hook inside doMiniBatchPut, even though I don't have any coprocessors
installed. I ran a million-row insert and collected CPU time spent in the RS
after commenting out the preput hook, and found CPU usage reduced by 33%.
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