[Koha] OPAC Search too slow in Koha 18.05.05

[Cab Vinton]

A couple follow up questions for you, Barton.

Are Zebra facets a general system preference? I see a few
facets-related preferences, but nothing specifically tied to Zebra.

We're still using Zebra in our system. Can you clarify what you mean
by ElasticSearch not yet being at feature-parity in 18.05?

We just upgraded to 18.05. Thoughts on staying w/ Zebra vs. switching
over to ES?

Many thanks in advance,

Cab Vinton
Plaistow Public Library
Plaistow, NH


On Thu, Nov 8, 2018 at 6:48 AM Barton Chittenden
<barton at bywatersolutions.com> wrote:
>
> Actually, if you have Zebra facets enabled, turn them *off*. I believe that
> they're enabled by default, and they're dog slow.
>
> Zebra is *very* disk IO intensive. Make sure that its temporary directory
> is being written to the fastest drive you have.
>
> If you have the QueryFuzzy or QueryStemming system preferences enabled, be
> aware that they don't like single letter words such as "A" or "I" --
> essentially, they end up trying to search for 'a*' or 'i*'; on a slow file
> system they can entirely time out and not return any results. Those system
> preferences *do* provide for easier searching -- disabling them means that
> keywords have to be typed exactly as they are in the record, so there's a
> trade-off between speed and user utility, but if the searches are too slow,
> it might be worth looking into.
>
> Finally, take a look at ElasticSearch. It isn't at feature-parity with
> Zebra in 18.05, but it might be worth a look.
>
> On Wed, Nov 7, 2018 at 6:23 PM Mark Tompsett <mtompset at hotmail.com> wrote:
>
> > Greetings,
> >
> > I don't promise to be right, but here are a couple thoughts:
> > 1) You can use Zebra Facets -- there's a koha-conf.xml line in there
> > somewhere.
> > 2) Also, do you have plack turned on? Plack increases response times
> > considerably.
> >
> > GPML,
> > Mark Tompsett
> >
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