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From Jonathan Ellis <>
Subject Re: deleting rows and tombstones
Date Fri, 17 Feb 2012 13:55:29 GMT
Deleting the entire row at once only creates a row-level tombstone.
This is almost free.  "Tombstone buildup" happens when performing
column-level deletes, then inserting more (different) columns.  The
classic example is modeling a queue in a row.

On Tue, Feb 14, 2012 at 1:54 PM, Todd Burruss <> wrote:
> my design calls for deleting a row (by key, not individual columns) and
> re-inserting it a lot and I'm concerned about tombstone build up slowing
> down reads.  I know if I delete a lot of individual columns the tombstones
> will build up and slow down reads until they are cleaned up, but not sure if
> the same holds for deleting the whole role.
> thoughts?

Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of DataStax, the source for professional Cassandra support

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