Warning: Falling back to java on path. This behavior is deprecated. Specify JAVA_HOME

Elastic Stack Elasticsearch
2

Hi @sph18,

I think this is just a warning and that the server should start OK. Relying on PATH to find the java version to use is deprecated in 6.7 and not supported on 7.0. Instead, you should set the JAVA_HOME environment variable before starting elasticsearch.

If you are starting elasticsearch from a bash commandline, you can specify JAVA_HOME using:

export JAVA_HOME=/path/to/java

before starting elasticsearch.

You can also ignore this, but then be aware that on elasticsearch 7.0 you will be switched over to using the bundled java version. I would recommend to set JAVA_HOME as long as you are on 6.7 and then switch over to not setting it explicitly once upgraded to 7.0.