kezhuw commented on pull request #15605: URL: https://github.com/apache/flink/pull/15605#issuecomment-819542959
To be honest, the initial hit off the top of my head when receiving FLINK-21996 is that are we build an unreliable rpc channel ? Then I realized that `AkkaOptions.ASK_TIMEOUT`. I wonder whether we could solve this by specifying a timeout for `TaskExecutorGateway.sendOperatorEventToTask` much larger than `HeartbeatManagerOptions.HEARTBEAT_INTERVAL`. This way, if "received" future fails, it means task manager is already considered as down by heartbeat manager. Is there anything wrong or are we just paranoid here to unknown errors ? It might be caused by my few knowledge of akka. I assumed akka messaging is reliable(eg. ordered messaging, delivery failure will timeout heartbeat finally). @StephanEwen @tillrohrmann -- 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. For queries about this service, please contact Infrastructure at: [email protected]
