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Describe limitation of some unsupported Elasticsearch configurations #8470

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Describe limitation of some unsupported Elasticsearch configuration
jeanfabrice Feb 10, 2025
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Merge branch 'main' into jeanfabrice-docfix-2
jeanfabrice Feb 14, 2025
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12 changes: 12 additions & 0 deletions ...hestrating-elastic-stack-applications/elasticsearch/node-configuration.asciidoc
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Expand Up @@ -36,3 +36,15 @@ spec:
----

For more information on Elasticsearch settings, check https://www.elastic.co/guide/en/elasticsearch/reference/current/settings.html[Configuring Elasticsearch].

WARNING: ECK parses Elasticsearch configuration and normalizes it to YAML. Consequently, some Elasticsearch configuration schema are impossible to express with ECK and, therefore, must be set using https://www.elastic.co/guide/en/elasticsearch/reference/current/settings.html#cluster-setting-types[dynamic cluster settings]. E.g.:
```
spec:
nodeSets:
- name: data
# ...
config:
cluster.max_shards_per_node: 1000
cluster.max_shards_per_node.frozen: 1000 # <= This won't work because cluster.max_shards_per_node is defined as a scalar value on the previous line
# ...
```