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https://issues.apache.org/jira/browse/CASSANDRA-9056?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14391104#comment-14391104
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Jim Plush commented on CASSANDRA-9056:
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[~krummas] were you able to find a workaround for this? We've hit this as well.
We have two tables using DTCS. One is working perfectly and showing a nice
sawtooth pattern of data size with a 1day TTL. The other table is growing and
leaving SSTables that have all the max timestamps past 1 day and some of the
older SSTables are not being cleaned up. E.g. we have SSTables from 6 days ago
still on disk with a 1Day TTL on writes.
> Tombstoned SSTables are not removed past max_sstable_age_days when using DTCS
> -----------------------------------------------------------------------------
>
> Key: CASSANDRA-9056
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9056
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Reporter: Shawn Kumar
> Assignee: Marcus Eriksson
> Labels: compaction, dtcs
>
> When using DTCS, tombstoned sstables past max_sstable_age_days are not
> removed by minor compactions. I was able to reproduce this manually and also
> wrote a dtest (currently failing) which reproduces this issue:
> [dtcs_deletion_test|https://github.com/riptano/cassandra-dtest/blob/master/compaction_test.py#L115]
> in compaction_test.py. I tried applying the patch in CASSANDRA-8359 but
> found that the test still fails with the same issue.
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