elasticsearch/docs/reference/setup/important-settings/heap-size.asciidoc

[[heap-size-settings]]
[discrete]
=== Heap size settings

By default, {es} automatically sizes JVM heap based on a node's
<<node-roles,roles>> and total memory. We recommend this default sizing for most
production environments. If needed, you can override default sizing by manually
<<setting-jvm-heap-size,setting JVM heap size>>.

NOTE: Automatic heap sizing requires the <<jvm-version,bundled JDK>> or, if using
a custom JRE location, a Java 14 or later JRE.

NOTE: When running in a container, such as <<docker,Docker>>, total memory is
defined as the amount of memory visible to the container, not the total system
memory on the host.
[DOCS] Add redirect for heap size (#64507) 2020-11-03 05:44:01 +08:00			`[[heap-size-settings]]`
[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			`[discrete]`
			`=== Heap size settings`
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
Update heap setting documentation in light of machine dependent heap (#66567) 2020-12-19 03:14:56 +08:00			`By default, {es} automatically sizes JVM heap based on a node's`
			`<<node-roles,roles>> and total memory. We recommend this default sizing for most`
			`production environments. If needed, you can override default sizing by manually`
			`<<setting-jvm-heap-size,setting JVM heap size>>.`
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
Update heap setting documentation in light of machine dependent heap (#66567) 2020-12-19 03:14:56 +08:00			`NOTE: Automatic heap sizing requires the <<jvm-version,bundled JDK>> or, if using`
			`a custom JRE location, a Java 14 or later JRE.`
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
[DOCS] Fix outdated heap references (#66646) 2020-12-22 03:01:12 +08:00			`NOTE: When running in a container, such as <<docker,Docker>>, total memory is`
			`defined as the amount of memory visible to the container, not the total system`
			`memory on the host.`