Cluster settings
Introduced 0.1.0
The cluster settings operation lets you check the current settings for your cluster, review default settings, and change settings. When you update a setting using the API, Lucenia applies it to all nodes in the cluster.
Path and HTTP methods
GET _cluster/settings
PUT _cluster/settings
Path parameters
All cluster setting parameters are optional.
| Parameter | Data type | Description |
|---|---|---|
| flat_settings | Boolean | Whether to return settings in the flat form, which can improve readability, especially for heavily nested settings. For example, the flat form of "cluster": { "max_shards_per_node": 500 } is "cluster.max_shards_per_node": "500". |
| include_defaults (GET only) | Boolean | Whether to include default settings as part of the response. This parameter is useful for identifying the names and current values of settings you want to update. |
| cluster_manager_timeout | Time unit | The amount of time to wait for a response from the cluster manager node. Default is 30 seconds. |
| timeout (PUT only) | Time unit | The amount of time to wait for a response from the cluster. Default is 30 seconds. |
Example request
GET _cluster/settings?include_defaults=true
Example response
PUT _cluster/settings
{
"persistent":{
"action.auto_create_index": false
}
}
Request fields
The GET operation has no request body options. All cluster setting field parameters are optional.
Not all cluster settings can be updated using the cluster settings API. You will receive the error message "setting [cluster.some.setting], not dynamically updateable" when trying to configure these settings through the API.
For a listing of all cluster settings, see Configuring Lucenia.
Example request
For a PUT operation, the request body must contain transient or persistent, along with the setting you want to update:
PUT _cluster/settings
{
"persistent":{
"cluster.max_shards_per_node": 500
}
}
For more information about transient settings, persistent settings, and precedence, see Lucenia configuration.
Example response
{
"acknowledged":true,
"persistent":{
"cluster":{
"max_shards_per_node":"500"
}
},
"transient":{}
}