[25.0.x] - geonetwork not starting

[Gaetanbrl]

With fresh install (master / 25.0.x), i get some errors on geonetwork start (catalina) :

2026-01-26T16:41:37,168 INFO  [geonetwork.schemamanager] -     Adding xml schema : csw-record
2026-01-26T16:41:37,451 ERROR [geonetwork.index] - Could not connect to index 'gn-records'. Error is Error deserializing co.elastic.clients.elasticsearch._types.mapping.DoubleNumberProperty: Unknown field 'format' (JSON path: mappings.dynamic_templates[3].dateType.mapping.format) (in object at line no=49, column no=23, offset=920). Is the index server  up and running?
co.elastic.clients.json.JsonpMappingException: Error deserializing co.elastic.clients.elasticsearch._types.mapping.DoubleNumberProperty: Unknown field 'format' (JSON path: mappings.dynamic_templates[3].dateType.mapping.format) (in object at line no=49, column no=23, offset=920)

2026-01-26T16:41:37,457 ERROR [geonetwork.index] - Error during index creation. Error is: Could not connect to index 'gn-records'. Error is Error deserializing co.elastic.clients.elasticsearch._types.mapping.DoubleNumberProperty: Unknown field 'format' (JSON path: mappings.dynamic_templates[3].dateType.mapping.format) (in object at line no=49, column no=23, offset=920). Is the index server  up and running?
2026-01-26T16:41:37,659 INFO  [geonetwork] - Initializing the WRO4J group: lib.js cache

Maybe a link with @pierrejego issue here :

https://groups.google.com/g/georchestra-dev/c/JqtXO-hkn_U

[Gaetanbrl]

As explain is https://groups.google.com/g/georchestra-dev/c/JqtXO-hkn_U, the error comes from the features.json located in the datadir, which defines a dateType dynamic template. This template is not present in the features.json shipped with the webapp, explaining the mapping mismatch.

use datadir to locate config files :
https://github.com/georchestra/datadir/blob/14bd077d784a18234f989240460bf3f12f903380/geonetwork/geonetwork.properties#L1-L19

The application then starts correctly once the datadir features.json is replaced by the features.json provided with the webapp, confirming the issue is specific to the datadir configuration.

cd /srv/data/geonetwork/config/index
cp /srv/tomcat/georchestra/webapps/geonetwork/WEB-INF/data/config/index/features.json .

Result without dateType error :

<6>Deployment of web application archive [/srv/tomcat/georchestra/webapps/geonetwork.war] has finished in [24,787] ms

Path to delete and create index again :

• /geonetwork/srv/fre/admin.console#/tools

[landryb]

https://github.com/georchestra/geonetwork_minimal_datadir probably needs to be updated for 4.4.9 then, as iirc the playbook deploys this branch by default