Michaël Figuière created CASSANDRA-8880:
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Summary: 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
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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