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elasticsearch/docs/reference/setup/install/sysconfig-file.asciidoc

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Docs: Complete rewrite of setup, installation, and configuration docs
2016-04-03 22:09:24 +08:00
[horizontal]
Introduce ES_JAVA_HOME (#68954) This commit introduces a dedicated envirnoment variable ES_JAVA_HOME to determine the JDK used to start (if not using the bundled JDK). This environment variable will replace JAVA_HOME. The reason that we are making this change is because JAVA_HOME is a common environment variable and sometimes users have it set in their environment from other JDK applications that they have installed on their system. In this case, they would accidentally end up not using the bundled JDK despite their intentions. By using a dedicated environment variable specific to Elasticsearch, we avoid this potential for conflict. With this commit, we introduce the new environment variable, and deprecate the use of JAVA_HOME. We will remove support for JAVA_HOME in a future commit.
2021-02-18 01:41:23 +08:00
`ES_JAVA_HOME`::
Merge branch 'pr/11338'
2016-04-07 05:06:30 +08:00
Set a custom Java path to be used.
Rename CONF_DIR to ES_PATH_CONF The environment variable CONF_DIR was previously inconsistently used in our packaging to customize the location of Elasticsearch configuration files. The importance of this environment variable has increased starting in 6.0.0 as it's now used consistently to ensure Elasticsearch and all secondary scripts (e.g., elasticsearch-keystore) all use the same configuration. The name CONF_DIR is there for legacy reasons yet it's too generic. This commit renames CONF_DIR to ES_PATH_CONF. Relates #26197
2017-08-15 05:19:06 +08:00
`ES_PATH_CONF`::
Docs: Complete rewrite of setup, installation, and configuration docs
2016-04-03 22:09:24 +08:00
Rename CONF_DIR to ES_PATH_CONF The environment variable CONF_DIR was previously inconsistently used in our packaging to customize the location of Elasticsearch configuration files. The importance of this environment variable has increased starting in 6.0.0 as it's now used consistently to ensure Elasticsearch and all secondary scripts (e.g., elasticsearch-keystore) all use the same configuration. The name CONF_DIR is there for legacy reasons yet it's too generic. This commit renames CONF_DIR to ES_PATH_CONF. Relates #26197
2017-08-15 05:19:06 +08:00
Configuration file directory (which needs to include `elasticsearch.yml`,
`jvm.options`, and `log4j2.properties` files); defaults to
`/etc/elasticsearch`.
Docs: Complete rewrite of setup, installation, and configuration docs
2016-04-03 22:09:24 +08:00
`ES_JAVA_OPTS`::
Any additional JVM system properties you may want to apply.
`RESTART_ON_UPGRADE`::
Configure restart on package upgrade, defaults to `false`. This means you
[Docs] Unify spelling of Elasticsearch (#27567) Removes occurences of "elasticsearch" or "ElasticSearch" in favour of "Elasticsearch" where appropriate.
2017-11-29 16:44:25 +08:00
will have to restart your Elasticsearch instance after installing a
Docs: Complete rewrite of setup, installation, and configuration docs
2016-04-03 22:09:24 +08:00
package manually. The reason for this is to ensure, that upgrades in a
cluster do not result in a continuous shard reallocation resulting in high
network traffic and reducing the response times of your cluster.