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From Mark Miller <>
Subject Re: Does LUCENE-831) "Complete overhaul of FieldCache API" provide fieldcache offloading to disk?
Date Thu, 17 Apr 2008 13:49:10 GMT
It does not specifically incorporate caching to disk, but what it does
do is easily allow you to provide a new Cache implementation. The
default implementation is just a simple in memory Map, but its trivial
to provide a new implementation using something like EHCache to back the
Cache implementation.

I don't know if caching to disk will really be that much of a benefit,
so if you play around I would love to hear your results.

The big benefit is
if you are reopening Readers with field caches, it can be waaay faster.

- Mark

On Thu, 2008-04-17 at 05:14 -0700, Britske wrote:
> I've seen some recent activity on LUCENE-831 "Complete overhaul of FieldCache
> API" and read that it must be able to cleanly patch to trunk (haven't tried
> yet). 
> What I'd like to know from people involved is if this patch incorporates
> offloading of fieldcache to disk, or if this hasn't yet been taken into
> account. As far as I can follow it, this was one of the initial intentions. 
> Thanks,
> Britske

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