T Jake Luciani created CASSANDRA-9365:
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Summary: Prioritize compactions based on read activity
Key: CASSANDRA-9365
URL: https://issues.apache.org/jira/browse/CASSANDRA-9365
Project: Cassandra
Issue Type: Improvement
Reporter: T Jake Luciani
Fix For: 3.x
The main purpose of compaction is to keep reads fast by consolidating tables
together to avoid merging on read.
In a cluster with many tables we currently treat all pending compaction as
equal. When in reality we may only be reading mainly from one of the tables.
Rather than FIFO we should prioritize access to the compactors based on read
activity.
It might also be nice to offer a nodetool command to kill specific compaction
jobs in progress that are not important under load.
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