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Ticket Resolution Summary Owner Reporter
#1498 fixed Support multiple SOLR schema versions amercader amercader

Reported by amercader, 2 years ago.

Description

At some point the SOLR schema used by CKAN will need to be changed and the changes won't be always backward compatible, so we need a mechanism to support instances that use older versions of the schema. This process will involve:

  • Better documentation on how to deploy SOLR, as single instance or multicore
  • A convention on how to tag schema versions and SOLR endpoints to ensure that CKAN instances point to the correct SOLR URL.
  • (If possible) Checks in CKAN core that deal with different schema versions.
#1501 fixed Pagination links broken johnglover amercader

Reported by amercader, 2 years ago.

Description

Most of the different pagination links are broken and point to wrong locations. e.g:

  • Dataset listings in group page:

http://test.ckan.net/group/bibliographic

  • Tag letters in tag listing:

http://test.ckan.net/tag

  • User listing:

http://test.ckan.net/user

  • Revision listing:

http://test.ckan.net/revision

This is most probably related with:

https://github.com/okfn/ckan/commit/1772a5c

#1516 fixed Update SOLR schema after 1.5.1 release and set up multicore SOLR instances if needed amercader amercader

Reported by amercader, 2 years ago.

Description

CKAN 1.5.1 will introduce changes in the SOLR schema and functions to support multiple schema versions. Unfortunately the changes in the schema will be backwards incompatible so either both CKAN and SOLR are upgraded, or SOLR is configured as multicore, with one core for each schema. The solr cores would look like:

http://<solr-server>/solr/schema-<version>

Different scenarios:

  • Single SOLR instance used by only one CKAN site (e.g. SOLR running on the same machine):
    • Update CKAN
    • Update SOLR schema (symlink to suitable version in CKAN source)
    • Rebuild search index
  • Single SOLR instance used by multiple CKAN sites.
    • Update CKAN source
    • Configure SOLR as multicore, one core for version 1.2 and another for 1.3 of the schema (symlink to appropriate version in CKAN source)
    • Update solr_url on each of the CKAN sites with the suitable core
    • Rebuild search index

These are the SOLR and CKAN instances that need to be updated (Please add any missing ones):

  • Same machine as the CKAN site:
    • test.ckan.net
    • iati.test.ckan.net
    • data.gov.uk/ catalogue.data.gov.uk (confirm)
  • s046.okserver.org
    • iatiregistry.org
  • s052.okserver.org
    • datacatalogs.org
  • s004.okserver.org / eu4.okfn.org / solr.okfn.org
    • thedatahub.org (=www.ckan.net)
    • datagm.org.uk
    • publicdata.eu
    • hri.fi (dev.fvh.fi?)
    • it.ckan.net
    • ie.ckan.net
    • cz.ckan.net
    • register.data.overheid.nl (nl.ckan.net?)
    • no.ckan.net / datakilder.no
    • br.ckan.net
    • colorado.ckan.net
    • at.ckan.net

TODO: which SOLR server are using these instances?

  • data.norge.no
  • nederland.ckan.net
  • lt.ckan.net
  • pl.ckan.net
  • datadotmontreal.ca/
  • ca.ckan.net / datadotgc.com
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