warrenzhu25 opened a new pull request, #38231: URL: https://github.com/apache/spark/pull/38231
### What changes were proposed in this pull request? Make HeartbeatReceiver as an IsolatedRpcEndpoint then it has dedicated single thread to process heartbeats. ### Why are the changes needed? All RpcEndpoint including HeartbeatReceiver in driver are sharing one thread pool. When there're lots of rpc messages queued, the waiting process time of heartbeat time could easily exceed heartbeat timeout, which generates lots of false positive. ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? Manually tested. -- 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]
