damccorm opened a new issue, #20096: URL: https://github.com/apache/beam/issues/20096
When using state with a large keyspace, you can end up with a large amount of state cleanup timers set to fire all 1ms after the end of a window. This can cause a momentary (I've observed 1-3 minute) lag in processing while windmill and the java harness fire and process these cleanup timers. By spreading the firing over a short period after the end of the window, we can decorrelate the firing of the timers and smooth the load out, resulting in much less impact from state cleanup. Imported from Jira [BEAM-9308](https://issues.apache.org/jira/browse/BEAM-9308). Original Jira may contain additional context. Reported by: SteveNiemitz. -- 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]
