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From Mark Greene <>
Subject Re: pagination through slices with deleted keys
Date Thu, 06 May 2010 16:26:13 GMT
Hey Ian,

I actually just wrote a quick example of how to iterate over a CF that may
have tombstones. This may help you out:

On Thu, May 6, 2010 at 12:17 PM, Ian Kallen <> wrote:

> I read the DistributedDeletes and the range_ghosts FAQ entry on the wiki
> which do a good job describing how difficult deletion is in an eventually
> consistent system. But practical application strategies for dealing with it
> aren't there (that I saw). I'm wondering how folks implement pagination in
> their applications; if you want to render N results in an application, is
> the only solution to over-fetch and filter out the tombstones? Or is there
> something simpler that I overlooked? I'd like to be able to count (even if
> the counts are approximate) and fetch rows with the deleted ones filtered
> out (without waiting for the GCGraceSeconds interval + compaction) but from
> what I see so far, the burden is on the app to deal with the tombstones.
>  -Ian

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