@Override
  protected void addOptions() {
    addOptWithArg("millis", "time limit in milliseconds");
    addOptWithArg("numWriters", "number of write threads");
    addOptWithArg("numGetters", "number of get threads");
    addOptWithArg("numScanners", "number of scan threads");
    addOptWithArg("numUniqueRows", "number of unique rows to test");
    addOptNoArg("crazyFlush",
      "if specified we will flush continuously otherwise will flush every minute");
    addOptNoArg("useMob", "if specified we will enable mob on the first column family");
  }
A test tool that uses multiple threads to read and write multifamily rows into a table, verifying
that reads never see partially-complete writes
hbase-server/src/test/java/org/apache/hadoop/hbase/AcidGuaranteesTestTool.java