OpenSearch/docs/reference/setup/important-settings/node-name.asciidoc

[[node.name]]
=== `node.name`

By default, Elasticsearch will use the first seven characters of the randomly
generated UUID as the node id. Note that the node id is persisted and does
not change when a node restarts and therefore the default node name will also
not change.

It is worth configuring a more meaningful name which will also have the
advantage of persisting after restarting the node:

[source,yaml]
--------------------------------------------------
node.name: prod-data-2
--------------------------------------------------

The `node.name` can also be set to the server's HOSTNAME as follows:

[source,yaml]
--------------------------------------------------
node.name: ${HOSTNAME}
--------------------------------------------------
Reorganize configuring Elasticsearch docs This commit reorganizes some of the content in the configuring Elasticsearch section of the docs. The changes are: - move JVM options out of system configuration into configuring Elasticsearch - move JVM options to its own page of the docs - move configuring the heap to important Elasticsearch settings - move configuring the heap to its own page of the docs - move all important settings to individual pages in the docs - remove bootstrap.memory_lock from important settings, this is covered in the swap section of system configuration Relates #27755 2017-12-12 10:24:37 -05:00			`[[node.name]]`
			=== `node.name`

[Docs] Grammatical fix in important-settings.asciidoc (#27654) 2017-12-19 10:50:23 -05:00			`By default, Elasticsearch will use the first seven characters of the randomly`
[Docs] Correct a small typo (#32655) 2018-08-07 04:33:46 -04:00			`generated UUID as the node id. Note that the node id is persisted and does`
Reorganize configuring Elasticsearch docs This commit reorganizes some of the content in the configuring Elasticsearch section of the docs. The changes are: - move JVM options out of system configuration into configuring Elasticsearch - move JVM options to its own page of the docs - move configuring the heap to important Elasticsearch settings - move configuring the heap to its own page of the docs - move all important settings to individual pages in the docs - remove bootstrap.memory_lock from important settings, this is covered in the swap section of system configuration Relates #27755 2017-12-12 10:24:37 -05:00			`not change when a node restarts and therefore the default node name will also`
			`not change.`

			`It is worth configuring a more meaningful name which will also have the`
			`advantage of persisting after restarting the node:`

			`[source,yaml]`
			`--------------------------------------------------`
			`node.name: prod-data-2`
			`--------------------------------------------------`

			The `node.name` can also be set to the server's HOSTNAME as follows:

			`[source,yaml]`
			`--------------------------------------------------`
			`node.name: ${HOSTNAME}`
[Docs] Correct a small typo (#32655) 2018-08-07 04:33:46 -04:00			`--------------------------------------------------`