public TableProcedureInterface.TableOperationType getTableOperationType(Procedure proc) {
      return ((TableProcedureInterface) proc).getTableOperationType();
    }
Verify that "write" operations for a single table are serialized, but different tables can be
executed in parallel.
hbase-server/src/test/java/org/apache/hadoop/hbase/master/procedure/TestMasterProcedureSchedulerConcurrency.java