Run more aggressive compactions during off peak hours
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Key: HBASE-4463
URL: https://issues.apache.org/jira/browse/HBASE-4463
Project: HBase
Issue Type: Improvement
Components: regionserver
Reporter: Karthik Ranganathan
Assignee: Karthik Ranganathan
The number of iops on the disk and the top of the rack bandwidth utilization at
off peak hours is much lower than at peak hours depending on the application
usage pattern. We can utilize this knowledge to improve the performance of the
HBase cluster by increasing the compact selection ratio to a much larger value
during off-peak hours than otherwise - increasing hbase.hstore.compaction.ratio
(1.3 default) to hbase.hstore.compaction.ratio.offpeak (5 default). This will
help reduce the average number of files per store.
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