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Benedict edited comment on CASSANDRA-12300 at 9/8/16 8:42 PM:
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Heh, funny how many places that advice has been declared awful (I apparently
did so 15 months ago in CASSANDRA-9274) and yet it persists....
... I guess I'm ultimately to blame though, since I reviewed the patch :(
was (Author: benedict):
Heh, funny how many places that advice has been declared awful (I apparently
did so 15 months ago in CASSANDRA-9274) and yet it persists....
> Disallow unset memtable_cleanup_threshold when flush writers is set
> -------------------------------------------------------------------
>
> Key: CASSANDRA-12300
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12300
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Brandon Williams
>
> Many times I see flush writers set, and mct unset, leading to a very small
> mct, which causes unneeded frequent flushing, and then of course compaction.
> I also think the default is a bit conservative, typically ending up at 0.11,
> where I'd say the majority of use cases only have one or two hot tables and
> are much better served at 0.7 or 0.8.
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