public void init(AtomicBoolean stop) throws Exception {
    setPriority(MIN_PRIORITY);
    setDaemon(false);
    this.stop = stop;
    this.hostName = ServerUtils.hostname();
    this.runtimeVersion = getRuntimeVersion();
  }
Superclass for all threads in the compactor.
ql/src/java/org/apache/hadoop/hive/ql/txn/compactor/CompactorThread.java