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Posted to commits@cassandra.apache.org by "Aleksey Yeschenko (JIRA)" <ji...@apache.org> on 2015/05/19 16:51:00 UTC
[jira] [Commented] (CASSANDRA-8603) Cut tombstone memory footprint
in half for cql deletes
[ https://issues.apache.org/jira/browse/CASSANDRA-8603?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14550559#comment-14550559 ]
Aleksey Yeschenko commented on CASSANDRA-8603:
----------------------------------------------
v3 LGTM. We don't need new tests here, but I'd like to see cassci results before committing.
> Cut tombstone memory footprint in half for cql deletes
> ------------------------------------------------------
>
> Key: CASSANDRA-8603
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8603
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Dominic Letz
> Assignee: Benjamin Lerer
> Labels: tombstone
> Attachments: 8603-2.1-V3.txt, cassandra-2.0.11-8603.txt, cassandra-2.1-8603.txt, cassandra-2.1-8603_v2.txt, system.log
>
>
> As CQL does not yet support range deletes every delete from CQL results in a "Semi-RangeTombstone" which actually has the same start and end values - but until today they are copies. Effectively doubling the required heap memory to store the RangeTombstone.
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