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add jvm clarification (#57460) 

Emphasise in the Docker documentation that although the default heap size is
1GB, the docker-compose.yml example specifies 512MB.
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DU-ds 2020-06-05 06:42:23 -04:00 committed by Rory Hunter
parent 61c496d320
commit 925c01f1d7
1 changed files with 1 additions and 1 deletions
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docs/reference/setup/install/docker.asciidoc
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@ -283,7 +283,7 @@ method, you can also configure this by using the `ES_JAVA_OPTS` environment
variable to set the heap size. For example, to use 16 GB, specify
`-e ES_JAVA_OPTS="-Xms16g -Xmx16g"` with `docker run`. Note that while the
default root `jvm.options` file sets a default heap of 1 GB, any value you set
in `ES_JAVA_OPTS` will override it.
in `ES_JAVA_OPTS` will override it. The `docker-compose.yml` file above sets the heap size to 512 MB.
IMPORTANT: You must <<heap-size,configure the heap size>> even if you are
https://docs.docker.com/config/containers/resource_constraints/#limit-a-containers-access-to-memory[limiting