code: private void insertJVMAargs() {
      final String flowName = this.node.getParentFlow().getFlowId();
      final String jobId = this.node.getId();
  
      String jobJVMArgs =
          String.format(
              "'-Dazkaban.flowid=%s' '-Dazkaban.execid=%s' '-Dazkaban.jobid=%s'",
              flowName, this.executionId, jobId);
  
      final String previousJVMArgs = this.props.get(JavaProcessJob.JVM_PARAMS);
      jobJVMArgs += (previousJVMArgs == null) ? "" : " " + previousJVMArgs;
  
      this.logger.info("job JVM args: " + jobJVMArgs);
      this.props.put(JavaProcessJob.JVM_PARAMS, jobJVMArgs);
    }
docs: Add useful JVM arguments so it is easier to map a running Java process to a flow, execution id
  and job