https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=43142

--- Comment #5 from Tomás Cohen Arazi (tcohen) <[email protected]> ---
Created attachment 202395
  -->
https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=202395&action=edit
Bug 43142: Make Elasticsearch number_of_replicas driven by a syspref

Adds ElasticsearchReplicas system preference (default: 0) which
overrides the index.number_of_replicas value from index_config.yaml
when creating indexes.

The previous hardcoded default of 1 replica caused permanently yellow
cluster health on single-node deployments (the majority of Koha
installations) because replica shards cannot be assigned without
additional nodes.

With the default of 0, single-node clusters get green health status
immediately after reindexing. Multi-node deployments can set the
preference to 1 or higher as needed.

Takes effect on next reindex (rebuild_elasticsearch.pl).

Test plan:
1. Apply patch
2. Run:
   $ ktd --shell
  k$ cd /kohadevbox/koha && perl installer/data/mysql/updatedatabase.pl
=> SUCCESS: Added new system preference 'ElasticsearchReplicas'
3. Verify default value:
   k$ koha-mysql kohadev -e "SELECT * FROM systempreferences WHERE
variable='ElasticsearchReplicas';"
=> SUCCESS: value = 0
4. Rebuild indexes:
   k$ perl misc/search_tools/rebuild_elasticsearch.pl --delete
5. Check cluster health:
   k$ curl -s http://es:9200/_cluster/health | python3 -m json.tool
   => SUCCESS: status is green, unassigned_shards is 0
6. Sign off :-D

Assisted-by: Sonnet 4 (Anthropic)

-- 
You are receiving this mail because:
You are watching all bug changes.
_______________________________________________
Koha-bugs mailing list -- [email protected]
To unsubscribe send an email to [email protected]
website : http://www.koha-community.org/
git : http://git.koha-community.org/
bugs : http://bugs.koha-community.org/

Reply via email to