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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: size tiered compaction - improvement
Date Wed, 18 Apr 2012 14:22:36 GMT
It's not that simple, unless you have an append-only workload.  (See
discussion on
https://issues.apache.org/jira/browse/CASSANDRA-3974.)

On Wed, Apr 18, 2012 at 4:57 AM, Radim Kolar <hsn@filez.com> wrote:
>
>> Any compaction pass over A will first convert the TTL data into
>> tombstones.
>>
>> Then, any subsequent pass that includes A *and all other sstables
>> containing rows with the same key* will drop the tombstones.
>
> thats why i proposed to attach TTL to entire CF. Tombstones would not be
> needed



-- 
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of DataStax, the source for professional Cassandra support
http://www.datastax.com

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