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https://issues.apache.org/jira/browse/CASSANDRA-7796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14103665#comment-14103665
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Benedict commented on CASSANDRA-7796:
-------------------------------------
My concern is I'm pretty certain we encountered a user on the mailing list
OOMing their servers by outpacing the live ratio calculation, which is why we
introduced this.
> Stop inheriting liveRatio/computedAt from previous memtables
> ------------------------------------------------------------
>
> Key: CASSANDRA-7796
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7796
> Project: Cassandra
> Issue Type: Bug
> Reporter: Aleksey Yeschenko
> Assignee: Aleksey Yeschenko
> Priority: Minor
> Fix For: 2.0.10
>
> Attachments: 7796.txt
>
>
> CASSANDRA-6945 helped to reduce the risk of calculating an outlier liveRatio
> value, and having to stick with it for a long time, by making liveRatio
> per-memtable and not per-cf.
> The added optimization of inheriting liveRatio/calculatedAt to minimize
> recalculations, however, took us a step back to before CASSANDRA-6945.
> I suggest we get rid of inheriting the old values altogether, but reduce the
> rate of recalculation by demanding 10x increase in ops to trigger recalc,
> instead of the previous 2x.
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