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https://issues.apache.org/jira/browse/CASSANDRA-8880?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lyuben Todorov reassigned CASSANDRA-8880:
-----------------------------------------

    Assignee: Lyuben Todorov

> Add metrics to monitor the amount of tombstones created
> -------------------------------------------------------
>
>                 Key: CASSANDRA-8880
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8880
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Michaël Figuière
>            Assignee: Lyuben Todorov
>            Priority: Minor
>
> AFAIK there's currently no way to monitor the amount of tombstones created on 
> a Cassandra node. CASSANDRA-6057 has made it possible for users to figure out 
> how many tombstones are scanned at read time, but in write mostly workloads, 
> it may not be possible to realize if some inappropriate queries are 
> generating too many tombstones.
> Therefore the following additional metrics should be added:
> * {{writtenCells}}: amount of cells that have been written
> * {{writtenTombstoneCells}}: amount of tombstone cells that have been written
> Alternatively these could be exposed as a single gauge such as 
> {{writtenTombstoneCellsRatio}}.



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