Upgrade Elasticsearch to 5.6.3

Question

I get the same error with the latest version of Elasticsearch 5.6.3

Error: encountered environment variables that are no longer supported
Use jvm.options or ES_JAVA_OPTS to configure the JVM
ES_HEAP_SIZE=1024m: set -Xms1024m and -Xmx1024m in jvm.options or add "-
Xms1024m -Xmx1024m" to ES_JAVA_OPTS

I have tried to add ES_JAVA_OPTS="-Xms1024m -Xmx1024m in bin/elasticsearch but I get the same thing.

Answer 1

You need to read the error message carefully.

Solution 1: open $ES_HOME/config/jvm.options and modify the lines starting with -Xms and -Xmx

-Xms1024m
-Xmx1024m

Or Solution 2: use an environment variable before starting Elasticsearch

> export ES_JAVA_OPTS="-Xms1024m -Xmx1024m"
> bin/elasticsearch