[GitHub] [dolphinscheduler] sunshining93 opened a new issue #5755: [Bug][Master Dispatch] Master Dispatch Task Instance Failed

Tue, 06 Jul 2021 01:21:06 -0700 


sunshining93 opened a new issue #5755:
URL: https://github.com/apache/dolphinscheduler/issues/5755


   After using Dolphin Scheduler to create a simple work flow that contains 
some tasks, few tasks can not run in time when the timer tasks trigger. 
   In this case, master node and worker node load avg is very low, it seems 
like this always happens when the Netty Error occurs.
   In the work flow, the task instance is Submit Success status, but can not 
get any Log Info in execute worker node, this situation lasts until task 
instance time out.
   
   Please help to confirm whether this bug is related to Netty Error and fix 
this BUG
   
   Dolphin Scheduler Version is 1.3.6
   master(12c 24g) property:
   master.exec.task.num=50;
   master.dispatch.task.num = 100; 
   worker(32c 64g) property is default
   
   
![image](https://user-images.githubusercontent.com/87005554/124564229-6d392900-de73-11eb-88e1-90e1a8534cbd.png)
   
![image](https://user-images.githubusercontent.com/87005554/124565433-9dcd9280-de74-11eb-9f23-4e0d911ea307.png)
   
![image](https://user-images.githubusercontent.com/87005554/124565543-bb026100-de74-11eb-8df1-3c61cbab6344.png)
   
   By Analyzing the worker node log, The worker node normally execute 4-5 tasks 
at the same schedule time


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