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https://issues.apache.org/jira/browse/CASSANDRA-21478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18136933#comment-18136933
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Caleb Rackliffe commented on CASSANDRA-21478:
---------------------------------------------
Dropped a few comments in the PR. Let me know what you think...
When we're both happy with any potential changes, I can fire up a CI run.
The only other question I have, which I've posted in ASF slack, is whether we
can get this into 6.0.
> Add a new guardrail around the number of SSTables per read
> ----------------------------------------------------------
>
> Key: CASSANDRA-21478
> URL: https://issues.apache.org/jira/browse/CASSANDRA-21478
> Project: Apache Cassandra
> Issue Type: Improvement
> Components: Feature/Guardrails
> Reporter: Caleb Rackliffe
> Assignee: Shlomit
> Priority: Normal
> Fix For: 7.x
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> While there is some prior art on this for SAI, which warns and then fails
> queries that touch too many SSTable indexes, the normal non-index read path
> does not have any guardrail for extremely aberrant cases where perhaps
> compaction falls behind and a small percentage of reads touch hundreds of
> SSTables. It might be nice for the server to be louder about this.
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