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https://issues.apache.org/jira/browse/CASSANDRA-6434?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14618689#comment-14618689
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Jeremiah Jordan commented on CASSANDRA-6434:
--------------------------------------------
It lets you reduce GC grace, not remove it completely. So it doesn't need to
be 7 days anymore, but does need to be longer than the hint window and some
other things. So maybe we can reduce it to a couple hours, or one day or
something, and let the "don't drop un-repiared" make sure we never drop one too
early.
This also solves a "safety" issue. If something happens to your cluster such
that you can't repair it in gc_grace, you aren't screwed, which is something
people have to worry about now.
> Repair-aware gc grace period
> -----------------------------
>
> Key: CASSANDRA-6434
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6434
> Project: Cassandra
> Issue Type: New Feature
> Components: Core
> Reporter: sankalp kohli
> Assignee: Marcus Eriksson
> Fix For: 3.0 beta 1
>
>
> Since the reason for gcgs is to ensure that we don't purge tombstones until
> every replica has been notified, it's redundant in a world where we're
> tracking repair times per sstable (and repairing frequentily), i.e., a world
> where we default to incremental repair a la CASSANDRA-5351.
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