Setting Logstash LS_JAVA_OPTS in docker not reflecting in container

Elastic Stack Logstash
1

Hi All,

I hope that this is an easy one and something that i am doing wrong in my compose file to easily fix it.

But basically in my compose file for logstash i am setting the environment value to LS_JAVA_OPTS

  logstash:
    image: bluemountain.azurecr.io/elastic.logstash
    build:
      context: .
      dockerfile: src/Configuration/Elastic/logstash/Dockerfile
    environment:
      - "LS_JAVA_OPTS=-Xmx2g -Xms2g"
    ports:
      - "5001:5001"
      - "9600:9600"
    configs:
      - source: logstash_pipline_config
        target: /usr/share/logstash/pipeline/logstash.conf
      - source: logstash_config
        target: /usr/share/logstash/config/logstash.yml
    depends_on: 
      - "elasticsearch"
    deploy:
      restart_policy:
        condition: on-failure

In portainer i can see this value reflected to "2g" in the below image

image
image.png1863×265 17.6 KB

But when the container starts - these values are not passed in

image
image.png1315×856 87.8 KB

any help would be greatly appricated as my LS container runs out of memory very quickly and takes 5 hours to import 61m rows of data (i am hoping that this will speed up the import of data)

Thanks
Joe.

2

That does not mean it is not getting passed. The -Xms1g -Xmx1g will be coming from /etc/logstash/jvm.options. If I set LS_JAVA_OPTS to -Xmx2g then my command line becomes

/bin/java -Xms500m -Xmx500m -XX:ParallelGCThreads=1[...] -Xmx2G -cp [...]

and the last value for -Xmx wins.

1 Like
3

Thanks for this, spot on! I have found a much faster way of importing the data now - scrubbed logstash and am using NEST bulkall with .netcore app now

Thanks

4

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