Barton told me it could be useful to share this excange I had with IdexData people during the implementation of the Zebra facets.

It highlights a limitation on the yaz-client tool, and they suggest we better use zoomsh.

I'm not sure if I already posted this on koha-devel, but it doesn't hurt to re-post, and might save some people some hours and headaches.

Regards

---------- Forwarded message ---------
From: Adam Dickmeiss <adam@indexdata.dk>
Date: lun., 9 mar. 2015 a las 6:36
Subject: Re: [Info] Possible limit on the amount of specs on an elementset? [ZEB-663]
To: Tomas Cohen Arazi <tomascohen@gmail.com>
Cc: jira@indexdata.com <jira@indexdata.com>

On 03/02/2015 12:18 PM, Tomas Cohen Arazi wrote:

Hi, I compiled 2.0.60 with the aim to patch it for a problem we are facing, and I can say the problem I previously reported is still present:

This a limitation in yaz-client which has a limit of 100 characters for elem command. We'll remove that limitiation. You can use zoomsh instead to play with longer facet specs.

/ Adam

Z> elem zebra::facet::su-to:0:100,su-geo:0:100,su-ut:0:100,au:0:100,se:0:100,itype:0:100,location:0:100,holdingbranch:0:100,homebranch:0:100,tomas:0:100

Z> s 1+1

Sent presentRequest (1+1).

Records: 1

Record type: XML

<record xmlns="http://www.indexdata.com/zebra/">

<facet type="0" index="su-to">

</facet>

<facet type="0" index="su-geo">

</facet>

<facet type="0" index="su-ut">

</facet>

<facet type="0" index="au">

<term coccur="2" occur="2">Adåker, Ulf</term>

<term coccur="2" occur="2">Danielsson, Palle</term>

<term coccur="2" occur="2">Stenson, Bobo</term>

<term coccur="1" occur="1">Davis, Miles</term>

<term coccur="1" occur="1">Löfcrantz, Johan</term>

<term coccur="1" occur="1">Milder, Joakim</term>

<term coccur="1" occur="1">Öström, Magnus</term>

</facet>

<facet type="0" index="se">

</facet>

<facet type="0" index="itype">

</facet>

<facet type="0" index="location">

</facet>

<facet type="0" index="holdingbranch">

</facet>

</record>

nextResultSetPosition = 2

Elapsed: 0.001203

So 'holdingbranch' is the last facet it retrieves. If I thange the elementset like this:

Z> elem zebra::facet::su-to:0:100,su-geo:0:100,su-ut:0:100,au:0:100,se:0:100,itype:0:100,location:0:100,tomas:0:100,homebranch:0:100,holdingbranch:0:100

I still get a 8 facet limit:

Z> s 1+1

Sent presentRequest (1+1).

Records: 1

Record type: XML

<record xmlns="http://www.indexdata.com/zebra/">

<facet type="0" index="su-to">

</facet>

<facet type="0" index="su-geo">

</facet>

<facet type="0" index="su-ut">

</facet>

<facet type="0" index="au">

<term coccur="2" occur="2">Adåker, Ulf</term>

<term coccur="2" occur="2">Danielsson, Palle</term>

<term coccur="2" occur="2">Stenson, Bobo</term>

<term coccur="1" occur="1">Davis, Miles</term>

<term coccur="1" occur="1">Löfcrantz, Johan</term>

<term coccur="1" occur="1">Milder, Joakim</term>

<term coccur="1" occur="1">Öström, Magnus</term>

</facet>

<facet type="0" index="se">

</facet>

<facet type="0" index="itype">

</facet>

<facet type="0" index="location">

</facet>

<facet type="0" index="homebranch">

</facet>

</record>

nextResultSetPosition = 2

Elapsed: 0.003697
On Mon, Feb 9, 2015 at 5:08 PM, Tomas Cohen Arazi <tomascohen@gmail.com> wrote:
Is there a way (or could it be) to skip the error if there are elems with results? For facets, it would be great that we could ask for n facets, and retrieve all at once.

I'll try 2.0.59 in about two hours and reply.
El lun., 9 de febrero de 2015 12:59, Adam Dickmeiss <adam@indexdata.dk> escribió:
On 02/09/2015 04:51 PM, Tomas Cohen Arazi wrote:

It is 2.0.44 on ubuntu 14.04. Should i try a newer?

I don't see things changes with respect to facets.. But you could try 2.0.59 out.

/ Adam
El lun., 9 de febrero de 2015 12:48, Adam Dickmeiss <adam@indexdata.dk> escribió:
On 02/05/2015 11:27 AM, Adam Dickmeiss wrote:

Hi Tomas,

we'll look into this and get back to you. Please reply-all and keep [ZEB-663] contents in the subject line for future conversation.

Hi Tomas,

we can't see a limit of 8. Asking for more than 8 returns more than 8. And supplying any non-existing facet-field throws an error.

What version of Zebra are you using?

/ Adam
/ Adam

On 02/04/2015 03:59 PM, Tomas Cohen Arazi wrote:
Hi, I've been playing with facets retrieval, which shines in Koha 3.18 (thanks!)

One thing I noticed is that asking zebra to retrive more than 8 facets at once doesn't work (it only retrieves 8). What i did was:

> elem zebra::facet::a1:0:20,...,a8:0:20,bullshit:0:20

('bullshit' doesn't exist on the facet indexes) and

> f a

> s 1+1

shows the expected results. If I do

> elem zebra::facet::a1:0:20,...,a7:0:20,bullshit:0:20

It fails ([25] Specified element set name not valid...)

Regards

--

Tomás Cohen Arazi

Prosecretaría de Informática

Universidad Nacional de Córdoba

✆ +54 351 5353750 ext 13168

GPG: B76C 6E7C 2D80 551A C765 E225 0A27 2EA1 B2F3 C15F
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--

Tomás Cohen Arazi

Prosecretaría de Informática

Universidad Nacional de Córdoba

✆ +54 351 5353750 ext 13168

GPG: B76C 6E7C 2D80 551A C765 E225 0A27 2EA1 B2F3 C15F