Yu Li created HBASE-18083:
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Summary: Make large/small file clean thread number configurable in
HFileCleaner
Key: HBASE-18083
URL: https://issues.apache.org/jira/browse/HBASE-18083
Project: HBase
Issue Type: Bug
Reporter: Yu Li
Assignee: Yu Li
Currently we have only one thread for both large and small file cleaning, but
when write pressure is huge we might need more cleaner threads, so we need to
make the thread number configurable.
We observed more than 1.8PB data in archive directory online due to business
access rate change, and this proposal is one of the necessary changes required.
Default value of the configurations would still be left to 1 to keep low
pressure to NN for normal case.
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