@Override
  public String getProcedureSignature() {
    return MasterFlushTableProcedureManager.FLUSH_TABLE_PROCEDURE_SIGNATURE;
  }
Initialize this region server flush procedure manager Uses a zookeeper based member controller.
@param rss region server
@throws KeeperException if the zookeeper cannot be reached
hbase-server/src/main/java/org/apache/hadoop/hbase/procedure/flush/RegionServerFlushTableProcedureManager.java