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https://issues.apache.org/jira/browse/CASSANDRA-11329?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sylvain Lebresne updated CASSANDRA-11329:
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Status: Ready to Commit (was: Patch Available)
> Indexers are not informed when expired rows are encountered in compaction
> -------------------------------------------------------------------------
>
> Key: CASSANDRA-11329
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11329
> Project: Cassandra
> Issue Type: Bug
> Components: Compaction
> Reporter: Sam Tunnicliffe
> Assignee: Sam Tunnicliffe
> Fix For: 3.0.x, 3.x
>
>
> When rows are merged during a compaction, if the row resulting from that
> merge is expired due to a row level ttl, registered indexes should be
> notified.
> Index implementers need to be aware that just because an expired row is
> written to the new SSTable, it doesn't necessarily mean that the index should
> purge its entry/entries for that row as there may still be be live data in
> other SSTables.
> That said, it should probably be the responsibility of the index
> implementation to manage that, but at the moment the handling of an
> {{onPrimaryKeyLivenessInfo}} event during compaction is a no-op and doesn't
> cause the registered indexes to be notified.
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