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https://issues.apache.org/jira/browse/CASSANDRA-21478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18118415#comment-18118415
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Shlomit commented on CASSANDRA-21478:
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Hi [~maedhroz] , just wanted to follow up on this PR when you have a chance.
Thanks!
> 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: 10m
> 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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