shangeyao opened a new issue, #4404: URL: https://github.com/apache/streampark/issues/4404
## Problem `HadoopUtils` keeps global YarnClient/HDFS instances without synchronization. Kerberos ticket refresh closes all clients while watchers and job submission may still be using them, causing intermittent failures. ## Proposed solution Guard YarnClient, HDFS, UGI, and configuration access with a shared lock, including Kerberos refresh timer callbacks. -- 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]
