yihao-tcf commented on issue #14923: URL: https://github.com/apache/dolphinscheduler/issues/14923#issuecomment-1751614775
I have also experienced such problems, which seriously affect the normal operation of scheduled tasks. **version**：3.1.7 **Reproduction steps** 1. Create Work groups  2. Create Test Tasks(Three different working groups) Task 1 use '大数据集群' worker group  Task 2 use '算法集群' worker group  Task 3 use 'default' worker group  Set scheduled execution，online workflow and scheduling `* * * * * ? *` 3. Stop the worker of the '算法集群'  **After stopping, all tasks will be affected and an error will be reported as task instance is null or host is null.** After stopping woker group info:  After stopping task execution status:      error logs message：  After starting the stopped worker, the task resumes execution. A large number of backlogged tasks are resuming execution, which may cause the cluster to be in a high load state and lead to the downtime of other services in the cluster. This is very dangerous -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
