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https://issues.apache.org/jira/browse/CASSANDRA-17868?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Josh McKenzie updated CASSANDRA-17868:
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Change Category: Operability
Complexity: Normal
Fix Version/s: 4.x
Status: Open (was: Triage Needed)
> Allow disabling hotness persistence, or tuning of rate limiter
> --------------------------------------------------------------
>
> Key: CASSANDRA-17868
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17868
> Project: Cassandra
> Issue Type: Improvement
> Components: Feature/Rate Limiting
> Reporter: Josh McKenzie
> Assignee: Josh McKenzie
> Priority: Normal
> Fix For: 4.x
>
>
> The persisting of the sstables hotness when there are 10s of thousands of
> sstables can have issues keeping up, and the rate limiter is hard coded.
> Another option may be nice to just completely disable the feature.
> When sstables super backed up (from repairs) the hotness tracking tends to
> cause the STCS in L0 to make poor decisions, always grabbing the large
> sstables and skipping the tiny sstables that would benefit more.
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