String getJobModelPath(String jobModelVersion) {
    return String.format("%s/%s", getJobModelPathPrefix(), jobModelVersion);
  }
Denotes the path where the most recent active job model version is stored. The version of the job model is the
most recent agreed upon version by the quorum. It differs from the <i>jobModelVersion</i> path which may
have a newer version of job model published by the leader in during rebalance before consensus is achieved.
@return the path where most recent active job model is stored
samza-core/src/main/java/org/apache/samza/zk/ZkKeyBuilder.java