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Hudson commented on CASSANDRA-2305: ----------------------------------- Integrated in Cassandra-0.7 #429 (See [https://hudson.apache.org/hudson/job/Cassandra-0.7/429/]) Purge tombstone from row cache (0.7 version) patch by slebresne; reviewed by jbellis for CASSANDRA-2305 > Tombstoned rows not purged from cache after gcgraceseconds > ---------------------------------------------------------- > > Key: CASSANDRA-2305 > URL: https://issues.apache.org/jira/browse/CASSANDRA-2305 > Project: Cassandra > Issue Type: Bug > Components: Core > Affects Versions: 0.7.0 > Reporter: Jeffrey Wang > Assignee: Sylvain Lebresne > Priority: Minor > Fix For: 0.7.5 > > Attachments: 0001-Compaction-test.patch, > 0002-Invalidate-row-cache-on-compaction-purge.patch, 2305_2nd_patch.patch > > Original Estimate: 2h > Time Spent: 2h > Remaining Estimate: 0h > > From email to list: > I was wondering if this is the expected behavior of deletes (0.7.0). Let's > say I have a 1-node cluster with a single CF which has gc_grace_seconds = 0. > The following sequence of operations happens (in the given order): > insert row X with timestamp T > delete row X with timestamp T+1 > force flush + compaction > insert row X with timestamp T > My understanding is that the tombstone created by the delete (and row X) will > disappear with the flush + compaction which means the last insertion should > show up. My experimentation, however, suggests otherwise (the last insertion > does not show up). > I believe I have traced this to the fact that the markedForDeleteAt field on > the ColumnFamily does not get reset after a compaction (after > gc_grace_seconds has passed); is this desirable? I think it introduces an > inconsistency in how tombstoned columns work versus tombstoned CFs. Thanks. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira