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Posted to commits@cassandra.apache.org by "Marcus Eriksson (JIRA)" <ji...@apache.org> on 2014/09/24 16:14:38 UTC
[jira] [Assigned] (CASSANDRA-7019) Major tombstone compaction
[ https://issues.apache.org/jira/browse/CASSANDRA-7019?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Marcus Eriksson reassigned CASSANDRA-7019:
------------------------------------------
Assignee: Marcus Eriksson
> Major tombstone compaction
> --------------------------
>
> Key: CASSANDRA-7019
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7019
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Marcus Eriksson
> Assignee: Marcus Eriksson
> Labels: compaction
>
> It should be possible to do a "major" tombstone compaction by including all sstables, but writing them out 1:1, meaning that if you have 10 sstables before, you will have 10 sstables after the compaction with the same data, minus all the expired tombstones.
> We could do this in two ways:
> # a nodetool command that includes _all_ sstables
> # once we detect that an sstable has more than x% (20%?) expired tombstones, we start one of these compactions, and include all overlapping sstables that contain older data.
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