elasticsearchHow do I configure elasticsearch to use an XMS memory allocator?

Configuring elasticsearch to use an XMS memory allocator requires the following steps:

1. Set the environment variable ES_JAVA_OPTS to the following value: -XX:+UseG1GC -XX:+UnlockExperimentalVMOptions -XX:+UseCGroupMemoryLimitForHeap -XX:MaxRAMFraction=1

2. Create the file jvm.options in the config directory of elasticsearch and add the following line to it: -XX:+UseG1GC -XX:+UnlockExperimentalVMOptions -XX:+UseCGroupMemoryLimitForHeap -XX:MaxRAMFraction=1

3. Restart elasticsearch

The above steps will configure elasticsearch to use the XMS memory allocator.

$ export ES_JAVA_OPTS="-XX:+UseG1GC -XX:+UnlockExperimentalVMOptions -XX:+UseCGroupMemoryLimitForHeap -XX:MaxRAMFraction=1"

Helpful links

• Elasticsearch Documentation
• XMS Memory Allocator Documentation

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