public void delete() throws IOException {
    try {
      zk.delete().forPath(makeTrackingJobZnode(trackingnode));
    } catch (Exception e) {
      // Might have been deleted already
      LOG.info("Couldn't delete " + makeTrackingJobZnode(trackingnode));
    }
  }
Create the parent znode for this job state.
hcatalog/webhcat/svr/src/main/java/org/apache/hive/hcatalog/templeton/tool/JobStateTracker.java