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From Viktor Jevdokimov <Viktor.Jevdoki...@adform.com>
Subject RE: size tiered compaction - improvement
Date Wed, 18 Apr 2012 12:06:51 GMT
Our use case requires Column TTL, not CF TTL, because it is variable, not constant.


Best regards/ Pagarbiai

Viktor Jevdokimov
Senior Developer

Email: Viktor.Jevdokimov@adform.com
Phone: +370 5 212 3063
Fax: +370 5 261 0453

J. Jasinskio 16C,
LT-01112 Vilnius,
Lithuania



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and any copies.-----Original Message-----
From: Radim Kolar [mailto:hsn@filez.com]
Sent: Wednesday, April 18, 2012 12:57
To: user@cassandra.apache.org
Subject: Re: size tiered compaction - improvement


> 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

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