mariuskimmina opened a new issue, #14952: URL: https://github.com/apache/druid/issues/14952
Please provide a detailed title (e.g. "Broker crashes when using TopN query with Bound filter" instead of just "Broker crashes"). ### Affected Version 26.0.0 ### Description We are encountering an issue where once we increase the number of middle managers to anything greater than 2 they are not picking up tasks effectively anymore. Only 1 middle manager is then using only 1 Slot and only 1 Task can be running and a time while all other tasks get stuck in a `Pending` state. See the image below for the tasks view.  See the screenshot below showing only 1 slot being used  When we have only 2 middle managers, everything is fine, the slots are being used and the task get picked up as expected. The issue arises when using more than 2 middle managers, we tried it with 3, 4 and 7 middle managers, the problem has always been the same. We are running on k8s deployed with druid-operator. The screenshot below gives an overview over the cluster.  The problem first occurred sometime after we upgraded our MySQL database (rds) from 5.7 to 8.0. Any guidance in troubleshooting this issue would be appreciated. Middle manager logs: https://pastebin.com/xwjNHUJV Coordinator logs: https://pastebin.com/LLuE3SK5 -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
