DOM and ICU are definitely the newer technologies and have been built explicitly to fix a number of shortcomings in GRS-1 and chr.

As Ian mentioned we have been slowly moving all our customers to using this combination, and admittedly it has been a relatively painful process whilst we iron out the various bugs.  However, for MARC21 at least, most of these are now fixed, and trying to support both sets of configs is only going to be a burden in the future.  Whilst we support the both DOM and GRS-1 we will inevitably keep getting the configurations are out of sync, and should we try to keep them in sync we will be limiting the DOM config with the limitations of GRS-1.

My vote is to make the move to DOM with ICU, advocating that getting it right once is much easier than trying to maintain two disparate configurations.

Martin Renvoize
Software Engineer, PTFS Europe Ltd
Content Management and Library Solutions
Skype: 
Landline: 0203 286 8685
Mobile: 07725985636

http://www.ptfs-europe.com


On 25 October 2013 09:10, Marcel de Rooy <M.de.Rooy@rijksmuseum.nl> wrote:

Hi,

Just a question on this topic:

 

Some time ago I tested the SRU server on ports 9998/9999 with Zebra/DOM, and at that time it would not work (rightaway, or as quick as it did with Zebra/GRS). (But I did not spend much time on sorting it out btw.) Any chance that someone can confirm that this problem has been resolved? (Are you working with it?) I think we should not deprecate GRS if this still needs more attention..

 

Marcel

 

Van: koha-devel-bounces@lists.koha-community.org [koha-devel-bounces@lists.koha-community.org] namens Galen Charlton [gmc@esilibrary.com]
Verzonden: donderdag 24 oktober 2013 16:44
Aan: koha-devel@lists.koha-community.org
Onderwerp: [Koha-devel] Default indexing and search options for 3.14

Hi,

I would like to have a discussion regarding making certain options the default for new installations of Koha 3.14 and deprecating other options.  Here's the list of proposals:

Enable DOM mode by default for both bibs and authorities
-----------------------------------------------------------------------------------

Now that MARC21, NORMARC, and UNIMARC have DOM indexing configurations available, this is now possible.

Deprecating the GRS-1 filter
-----------------------------------------

Giving that DOM has significant advantages of GRS-1 in its flexibility, and as the DOM filter would be required for non-MARC metadata support by Zebra, I propose that we announce a deprecation of the GRS-1 configuration with it to be removed by 3.16.  I foresee several features coming down the pike for 3.16 that would require a reindexing during upgrade anyway, so switching to DOM for 3.16 would not impose a burden that wouldn't be present anyway.

Enable QueryParser by default
---------------------------------------------

Bug 10542 might be a blocker for this, and doing something about bug 10831 would be nice in order to do this.

Deprecating non-QueryParser mode
---------------------------------------------------

Removing the non-QueryParser code would go a long way towards easing the rewrite of C4::Search.

Enable ICU by default
-------------------------------

This was discussed during hackfest.  One precondition I see is that bug 10729 would have to pass QA

Regards,

Galen
-- 
Galen Charlton
Manager of Implementation
Equinox Software, Inc. / The Open Source Experts
skype:  gmcharlt

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