public String getJobID() throws IOException {
    try {
      return new String(zk.getData().forPath(makeTrackingJobZnode(trackingnode)));
    } catch (Exception e) {
      // It was deleted during the transaction
      throw new IOException("Node already deleted " + trackingnode, e);
    }
  }
Get the jobid for this tracking node
@throws IOException
hcatalog/webhcat/svr/src/main/java/org/apache/hive/hcatalog/templeton/tool/JobStateTracker.java