njnu-seafish opened a new issue, #17795: URL: https://github.com/apache/dolphinscheduler/issues/17795
### Search before asking - [x] I had searched in the [issues](https://github.com/apache/dolphinscheduler/issues?q=is%3Aissue) and found no similar feature requirement. ### Description When the worker group does not exist or no workers are available, The task will remain stuck in an infinite loop, continuously being dispatched by the master. > [WI-6][TI-11] - 2025-12-01 15:34:41.497 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 38000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:35:19.497 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 39000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:35:58.498 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 40000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:36:38.500 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 41000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:37:19.499 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 42000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:38:01.499 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 43000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:38:44.499 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 44000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:39:28.500 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 45000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-0][TI-0] - 2025-12-01 15:40:00.400 INFO [scheduling-1] o.a.d.s.m.c.ExternalSystemTokenManager:[89] - Checking for updates... [WI-6][TI-11] - 2025-12-01 15:40:13.500 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 46000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:40:59.501 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 47000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:41:46.501 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 48000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:42:34.501 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 49000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:43:23.502 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 50000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:44:13.502 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 51000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:45:04.503 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 52000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:45:56.503 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 53000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:46:49.503 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 54000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:47:43.504 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 55000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:48:38.504 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 56000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:49:34.504 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 57000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:50:31.505 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 58000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:51:29.505 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 59000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) [WI-6][TI-11] - 2025-12-01 15:52:28.506 ERROR [WorkerGroupTaskDispatcher-g_121] o.a.d.s.m.e.t.d.WorkerGroupDispatcher:[102] - Dispatch Task: 11 failed will retry after: 60000/ms org.apache.dolphinscheduler.server.master.exception.dispatch.TaskDispatchException: Cannot find the host to dispatch Task[id=11, name=aaa, workerGroup=g_121] at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.lambda$dispatch$0(PhysicalTaskExecutorClientDelegator.java:67) at java.util.Optional.orElseThrow(Optional.java:290) at org.apache.dolphinscheduler.server.master.engine.task.client.PhysicalTaskExecutorClientDelegator.dispatch(PhysicalTaskExecutorClientDelegator.java:66) at org.apache.dolphinscheduler.server.master.engine.task.client.TaskExecutorClient.dispatch(TaskExecutorClient.java:54) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.doDispatchTask(WorkerGroupDispatcher.java:94) at org.apache.dolphinscheduler.server.master.engine.task.dispatcher.WorkerGroupDispatcher.run(WorkerGroupDispatcher.java:79) ### Are you willing to submit a PR? - 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