xiashao1980 opened a new issue #5364: URL: https://github.com/apache/dolphinscheduler/issues/5364
**Describe the bug** When I add thousands of process instances to DS by API, sometimes the newest process could not be found in the process instance list. I had researched the tables in the ds database, and I found that all new instance requests were saved in 'ds_command'. I dumped the stack of the ds master service process, but the information of the 'MasterSchedulerService' thread did not exist in the log file. It seemed that the core thread 'MasterSchedulerService' has been terminated accidentally. Then, I had to restart the ds master service, and all blocked commands had been executed soon. Please download the 'jstack' log file by the following URL: URL：https://pan.baidu.com/s/1NL2mM2s9ud7rqMM0It3pOw code：ttn5 Thanks. **To Reproduce** 1. Set 'worker.exec.threads' to 1 2. Set 'master.exec.threads' to 4000 3. Add two thousand process instances to DS by API in 1 minute. 4. If it is not blocked, add more instances and try again. **Expected behavior** Anyway, the 'MasterSchedulerService' thread should not be terminated accidentally. **Screenshots** No. **Which version of Dolphin [Scheduler:**] 1.3.4 -- 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. For queries about this service, please contact Infrastructure at: [email protected]
