dockersolrdockerhub

How can I increase the amount of available memory available Solr in a Docker container?

I downloaded Solr from dockerhub and I am trying to increase the amount of available memory available to Solr. It seems that the JVM args are set to "-Xms512m -Xmx512" which means that there are only 512 mb available to Solr. How can I increase that limit?

Solution

  • Set the SOLR_HEAP environment variable when you launch the container.

    For example:

    docker run -it --rm -e SOLR_HEAP=1024m solr:latest

    The running process will then have -Xms1024m -Xmx1024m.

    You could also create a derived image with the required settings.

    FROM solr:latest

ENV SOLR_HEAP=1024m