Mengleijin opened a new issue, #13933: URL: https://github.com/apache/dolphinscheduler/issues/13933
### Search before asking - [X] I had searched in the [issues](https://github.com/apache/dolphinscheduler/issues?q=is%3Aissue) and found no similar issues. ### What happened Version：v2.0.1 Description：The scheduled task did not execute as expected and has only occurred once, involving multiple workflows error log：（Not sure if it is related to this error） ~~~ [ERROR] 2023-04-13 09:09:22.368 org.apache.dolphinscheduler.server.master.dispatch.host.LowerWeightHostManager:[147] - RefreshResourceTask error java.util.ConcurrentModificationException: null at java.util.HashMap$HashIterator.nextNode(HashMap.java:1437) at java.util.HashMap$KeyIterator.next(HashMap.java:1461) at org.apache.dolphinscheduler.server.master.dispatch.host.LowerWeightHostManager$RefreshResourceTask.run(LowerWeightHostManager.java:134) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) ### What you expected to happen Scheduled tasks run steadily as expected ### How to reproduce Unable to reproduce ### Anything else _No response_ ### Version 2.0.x ### Are you willing to submit PR? - [ ] Yes I am willing to submit a PR! ### Code of Conduct - [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct) -- 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]
