Hi Graham, thanks for reporting this.  I should be able to get it fixed
shortly.

As far as how it's off by default, the default max_cold_reads_ratio is 0.0,
so filterColdSSTables() won't actually filter anything.  I can add a check
to skip that function if maxColdReadsRatio is 0.0 in the 6483 patch.


On Thu, Dec 12, 2013 at 7:00 PM, graham sanderson <gra...@vast.com> wrote:

> I just created https://issues.apache.org/jira/browse/CASSANDRA-6483 for
> an issue introduced it seems by
> https://issues.apache.org/jira/browse/CASSANDRA-6109
>
> Note that the latter feature claims to be “off” by default, however it
> isn’t immediately clear to me from the patch how that “off” is implemented,
> and whether it is supposed to go down that code path even when “off"
>
> I’d be interested if anyone can shed some light on that, I’m happy to fix
> the issue (but would love to “turn it off” in the interim as it spams our
> ERROR monitoring - I’m guessing there is no other actual downside, since it
> just fails a subset of compaction runs
>
> Thanks,
>
> Graham.
>



-- 
Tyler Hobbs
DataStax <http://datastax.com/>

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