squatter not used after upgrade to cyrus 3.0.8

[Robert Stepanek]

On Fri, May 10, 2019, at 2:18 PM, Michael Menge wrote:
> no the problem is not completly resolved jet.
> See https://github.com/cyrusimap/cyrus-imapd/issues/2598 for details.

I tested this right now on the 3.0 branch, and I can confirm there's an issue of matches not being found. I don't have an answer why this is so, yet. I'm working on it.

> > I've put in my impad.conf:
> > search_engine: squat
> > search_fuzzy_always: 1
> 
> AFAIK the squat search engine does not support fuzzy search.
> I am sure in my testing this setting didn't resolve the slow
> search, but i don't remember if this setting did nothing,
> or failed to find anything at all or what else happened
> with this configuration.

If I recall correctly, Cyrus uses the configured search engine only for fuzzy search. Non-fuzzy search is matched using the Cyrus-builtin routines, which will be slow: for body search it has to examine every message for that mailbox.

If your client is sending something like:

 C: 6 search body "body"

then it won't use the squat/xapian index, unless you have search_fuzzy_always set.

Cheers,
Robert
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