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Lyuben Todorov commented on CASSANDRA-8880: ------------------------------------------- Sounds reasonable, so we count the created tombstones, and range tombstones. I think we might need separate metrics to avoid confusion between the two meaning, or is it a fair assumption that tombstones and range tombstones should be counted together? > 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 > Labels: metrics > Fix For: 2.1.4 > > Attachments: cassandra-2.1-8880.patch > > > 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}}. -- This message was sent by Atlassian JIRA (v6.3.4#6332)