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elasticsearch/docs/reference/setup/important-settings/cluster-name.asciidoc

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[DOCS] Combining important config settings into a single page (#63849) * Combining important config settings into a single page. * Updating ids for two pages causing link errors and implementing redirects.
2020-10-19 22:02:22 +08:00
[[cluster-name]]
[discrete]
=== Cluster name setting
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 23:24:37 +08:00
A node can only join a cluster when it shares its `cluster.name` with all the
other nodes in the cluster. The default name is `elasticsearch`, but you should
[DOCS] Combining important config settings into a single page (#63849) * Combining important config settings into a single page. * Updating ids for two pages causing link errors and implementing redirects.
2020-10-19 22:02:22 +08:00
change it to an appropriate name that describes the purpose of the cluster.
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 23:24:37 +08:00
[source,yaml]
--------------------------------------------------
cluster.name: logging-prod
--------------------------------------------------
[DOCS] Combining important config settings into a single page (#63849) * Combining important config settings into a single page. * Updating ids for two pages causing link errors and implementing redirects.
2020-10-19 22:02:22 +08:00
IMPORTANT: Do not reuse the same cluster names in different environments.
Otherwise, nodes might join the wrong cluster.