beobal opened a new pull request, #4891: URL: https://github.com/apache/cassandra/pull/4891
Add a dedicated single-threaded CMS_COMMIT stage to prevent INTERNAL_METADATA pool exhaustion under concurrent TCM_COMMIT_REQ load. Multiple threads entering AbstractLocalProcessor.commit() simultaneously amplify LWT retry pressure. Switching to a single commit thread eliminates that without reducing useful throughput since Paxos serializes the actual log write anyway. Patch by Jon Meredith; reviewed by Sam Tunnicliffe for CASSANDRA-21454 -- 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]
