protected boolean isYieldAfterExecutionStep(TEnvironment env) {
    return false;
  }
By default, the procedure framework/executor will try to run procedures start to finish. Return
true to make the executor yield between each execution step to give other procedures a chance
to run.
@param env the environment passed to the ProcedureExecutor
@return Return true if the executor should yield on completion of an execution step. Defaults
        to return false.
hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/Procedure.java