[CASSANDRA-1876] Allow minor Parallel Compaction

• Type: Improvement
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Assignee: Unassigned
• Reporter: Germán Kondolf
• Created: 17/Dec/10 16:25
• Updated: 16/Apr/19 09:33
• Resolved: 15/Jul/11 02:41

Description

Hi,

According to the dev's list discussion (1) I've patched the CompactionManager to allow parallel compaction.

Mainly it splits the sstables to compact in the desired buckets, configured by a new parameter: compaction_parallelism with the current default of "1".
Then, it just submits the units of work to a new executor and waits for the finalization.

The patch was created in the trunk, so I don't know the exact affected version, I assume that is 0.8.
I'll try to apply this patch to 0.6.X also for my current production installation, and then reattach it.

(1) http://markmail.org/thread/cldnqfh3s3nufnke

Issue Links

• is superceded by: CASSANDRA-2191 Multithread across compaction buckets