cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Vladimir Yudovin <>
Subject Re: Some questions to updating and tombstone
Date Mon, 14 Nov 2016 08:24:40 GMT
Hi Boying,

UPDATE write new value with new time stamp. Old value is not tombstone, but remains until
compaction. gc_grace_period is not related to this.

Best regards, Vladimir Yudovin, 

Winguzone - Hosted Cloud Cassandra
Launch your cluster in minutes.

---- On Mon, 14 Nov 2016 03:02:21 -0500Lu, Boying &lt;; wrote

Hi, All,


Will the Cassandra generates a new tombstone when updating a column by using CQL update statement?


And is there any way to get the number of tombstones of a column family since we want to void

too many tombstones within gc_grace_period?





View raw message