Can't Increase memory size in docker-compose.yml

[shlomis]

I'm trying to run strongly_connected_components analysis on OSX macBook pro 16GB, with a graph of about 60,000 nodes. I have tried the following but keep getting out of memory exceptions.

hdfs:
  environment:
    - "JAVA_OPTS=-Xmx5g"
  image: sequenceiq/hadoop-docker:2.4.1
  command: /etc/bootstrap.sh -d -bash
  mem_limit: 2048m
mazerunner:
  environment:
    - "JAVA_OPTS=-Xmx5g"
  image: kbastani/neo4j-graph-analytics:latest
  mem_limit: 2048m
  links:
   - hdfs
graphdb:
  environment:
    - "JAVA_OPTS=-Xmx2g"
  image: kbastani/docker-neo4j:latest
  mem_limit: 2048m
  ports:
   - "7474:7474"
   - "1337:1337"
  volumes:
   - /opt/data
  links:
   - mazerunner
   - hdfs