[jira] [Resolved] (CASSANDRA-13023) Add droppable tombstone metrics

["Stefan Podkowinski (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-13023?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stefan Podkowinski resolved CASSANDRA-13023.
--------------------------------------------
    Resolution: Not A Problem

Thanks for letting me know, [~arodrime]! It's been a while since I created the ticket, so I'm not fully sure if I had something else in mind back then, or simply wasn't aware of the metric at table level, which seems to be sufficient.

> Add droppable tombstone metrics
> -------------------------------
>
>                 Key: CASSANDRA-13023
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13023
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Observability
>            Reporter: Stefan Podkowinski
>            Priority: Major
>         Attachments: droppableTombstoneRatio.png
>
>
> Currently it's only possible to inspect the ratio of droppable tombstones on sstable basis using the {{sstablemetadata}} tool. It would be very useful to have this information provided as part of Cassandra metrics as well, e.g. to get an idea on the effectiveness of tombstone eviction during compactions over time.



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