Re: [htdig] searches are slooow...


Subject: Re: [htdig] searches are slooow...
From: Jeff (jeff@tcnet.org)
Date: Thu Mar 30 2000 - 14:41:03 PST


On Thu, 30 Mar 2000, Edmond Abrahamian wrote:

>
>
> Hi all,
>
> We have a fairly large intranet here and we moved from 3.0.8 to
> 3.1.5 and now the searches seem a lot slower (we re-dug everything with
> the new software first). Curiously, once you do a search (in 3.1.5),
> if you ask for the same search but with the hits ordered differently
> (say by time instead of by score) then that next hit takes place fast
> (are recent queries being cached). Also, turning off fuzzy searches
> doesn't seem to make a big difference.

The 'cached' effect sounds like your server's standard disk caching...
using the same search terms (even in a different order) accesses roughly
the same portions of the indexed databases, and if the server has recently
accessed that data, it is still cached in RAM.

As for why your searches are so slow after the upgrade... has the size of
your document collection changed recently? Have any other variables
changed (hardware, operating system revision, etc)? Are you making use of
zlib compression for your databases? How large are your current databases
on disk compared to your previous ones?

As you can see, there are many possibilities.

-jeff

-- 
Jeff Godin
Network Specialist
Traverse Area District Library / Traverse Community Network
jeff@tcnet.org - 231/932-8546 voice

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