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https://issues.apache.org/jira/browse/CASSANDRA-13771?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16130163#comment-16130163
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Stefan Podkowinski commented on CASSANDRA-13771:
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Have you looked at the TombstoneScannedHistogram metric? I think this value
should give you an even better picture on the number of read tombstones.
> Emit metrics whenever we hit tombstone failures and warn thresholds
> -------------------------------------------------------------------
>
> Key: CASSANDRA-13771
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13771
> Project: Cassandra
> Issue Type: Improvement
> Reporter: TIRU ADDANKI
> Assignee: TIRU ADDANKI
> Priority: Minor
> Attachments: 13771.patch
>
>
> Many a times we see cassandra timeouts, but unless we check the logs we won’t
> be able to tell if the time outs are result of too many tombstones or some
> other issue. It would be easier if we have metrics published whenever we hit
> tombstone failure/warning thresholds.
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