Cassandra Too many Tombstones encountered

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1

Hi,
I’m running Temporal server 1.16.1 with Cassandra 4.0.4
we’re getting this warning on Cassandra cluster used by temporal:

“A significant number of tombstones are being encountered during queries. A common cause of this is reading data from a partition where data is also frequently getting deleted or expired. This can have a significant impact on performance.”

Not very familiar with Cassandra DB. If someone can point me in the right direction. what could be the issue? or is there any solution?

3

Can you describe your use case please? Trying to understand why it seems your app is causing a large number of queries for deleted rows. Anything specific you might be doing on client side (maybe polling queries)?