eugenegujing commented on PR #6724: URL: https://github.com/apache/texera/pull/6724#issuecomment-5052724109
> Can you provide a real workflow that can reproduce this bug? Here's a real repro on main (screenshot). The workflow is scan → sort → Python UDF. Sort is blocking, so the UDF runs in a second region and reads its input from storage through the materialization reader threads. I clicked pause right when the second region started, before the readers sent anything. Their channel was registered after disable_data, so it came up enabled, and the paused worker went on to consume the whole input and call complete(), which threw InvalidTransitionException: Cannot transit from PAUSED to COMPLETED and killed the DP thread. The heartbeat thread is still alive, so resume never gets processed and the execution stays stuck in "Resuming" with no error shown anywhere. With the fix, the channel starts disabled and the same run finishes normally after resume. <img width="1157" height="807" alt="Screenshot 2026-07-22 at 4 08 24 PM" src="https://github.com/user-attachments/assets/0c74d841-970b-408b-812d-239e7f18958e"; /> -- 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]
