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J.P. Eiti Kimura commented on CASSANDRA-7953: --------------------------------------------- Hello guys whe are you planning to release this patch? we are facing the same problem as [~fhsgoncalves] described above > RangeTombstones not merging during compaction > --------------------------------------------- > > Key: CASSANDRA-7953 > URL: https://issues.apache.org/jira/browse/CASSANDRA-7953 > Project: Cassandra > Issue Type: Bug > Components: Core > Environment: Cassandra 2.1 > Reporter: Marcus Olsson > Assignee: Branimir Lambov > Priority: Minor > Labels: compaction, deletes, tombstone > Fix For: 2.1.x, 2.2.x > > Attachments: 0001-7953-v2.patch, CASSANDRA-7953-1.patch, > CASSANDRA-7953.patch > > > When performing a compaction on two sstables that contain the same > RangeTombstone with different timestamps, the tombstones are not merged in > the new sstable. > This has been tested using cassandra 2.1 with the following table: > {code} > CREATE TABLE test( > key text, > column text, > data text, > PRIMARY KEY(key, column) > ); > {code} > And then doing the following: > {code} > INSERT INTO test (key, column, data) VALUES ("1", "1", "1"); // If the > sstable only contains tombstones during compaction it seems that the sstable > either gets removed or isn't created (but that could probably be a separate > JIRA issue). > INSERT INTO test (key, column, data) VALUES ("1", "2", "2"); // The inserts > are not actually needed, since the deletes create tombstones either way. > DELETE FROM test WHERE key="1" AND column="2"; > nodetool flush > INSERT INTO test (key, column, data) VALUES ("1", "2", "2"); > DELETE FROM test WHERE key="1" AND column="2"; > nodetool flush > nodetool compact > {code} > When checking with the SSTableExport tool two tombstones exists in the > compacted sstable. This can be repeated, resulting in more and more > tombstones. -- This message was sent by Atlassian JIRA (v6.3.4#6332)