@Override
    public void processResult(int rc, String path, Object ctx, byte[] data, Stat stat) {
      SplitLogCounters.tot_wkr_get_data_result.increment();
      if (rc != 0) {
        LOG.warn("getdata rc = " + KeeperException.Code.get(rc) + " " + path);
        getDataSetWatchFailure(path);
        return;
      }
      data = ZKMetadata.removeMetaData(data);
      getDataSetWatchSuccess(path, data);
    }
Asynchronous handler for zk get-data-set-watch on node results.
hbase-server/src/main/java/org/apache/hadoop/hbase/coordination/ZkSplitLogWorkerCoordination.java