From: Ara.T.Howard@...
Date: 2004-10-06T07:14:50+09:00
Subject: Re: Large disc-based "hash"?

On Wed, 6 Oct 2004, Robert Feldt wrote:

> Hi,
>
> I need a simple way to have a potentially very large hash mapping
> Strings to Ruby objects. It needs to scale to on the order of 1 million
> entries with up to 1kb of data per entry (even though it might end up
> with maybe 2-300 bytes per entry for starters). Access time is not
> critical but low-to-medium mem usage is. Deletion of (and insert of new)
> keys/values will be fairly frequent so should be supported.

if 'fairly frequent' is once per week look at CDB too - it's blindingly fast
and updates (atomic replacements actually) are suprisingly fast.  reads are
absolutely insanely fast.

bdb is also great.

sqlite with adequate indexing may also work - but probably not.


-a
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