Merge pull request #558 from boandai/dev-1.1.0

 add note

escheduler-dao/src/main/java/cn/escheduler/dao/ProcessDao.java

@@ -1011,11 +1011,11 @@ public class ProcessDao extends AbstractBaseDao {
     }
 
     /**
-     * ${processInstancePriority}_${processInstanceId}_${taskInstancePriority}_${taskId}
+     * ${processInstancePriority}_${processInstanceId}_${taskInstancePriority}_${taskId}_${task executed by ip1},${ip2}...
      *
      * The tasks with the highest priority are selected by comparing the priorities of the above four levels from high to low.
      *
-     * 流程实例优先级_流程实例id_任务优先级_任务id       high <- low
+     * 流程实例优先级_流程实例id_任务优先级_任务id_任务执行机器ip1，ip2...          high <- low
      *
      * @param taskInstance
      * @return