-Xms512m
-Xmx512m
-XX:MaxDirectMemorySize=512m
any ?
elasticsearch.yml , jvm.options.d/heap
## IMPORTANT: JVM heap size
################################################################
##
## The heap size is automatically configured by Elasticsearch
## based on the available memory in your system and the roles
## each node is configured to fulfill. If specifying heap is
## required, it should be done through a file in jvm.options.d,
## and the min and max should be set to the same value. For
## example, to set the heap to 4 GB, create a new file in the
## jvm.options.d directory containing these lines:
##
Xms1024m
-Xmx1024m
##
## See https://www.elastic.co/guide/en/elasticsearch/reference/current/heap-size.html
## for more information
##
################################################################if docker:
https://docs.docker.com/config/containers/resource_constraints/
