qzsee opened a new issue, #11282: URL: https://github.com/apache/doris/issues/11282
### Search before asking - [X] I had searched in the [issues](https://github.com/apache/incubator-doris/issues?q=is%3Aissue) and found no similar issues. ### Description When the query is executed, the generated execution fragment is sent to the BE node. At this time, the BE node breakdown, and RPC failed will appear(`rpc failed,host:xxx` `send fragment timeout. backend id:xxx,host:xxx`). although the heartbeat of the BE node is normal. RPC failed directly causes the query failure. Although there is a blacklist mechanism, this does not necessarily solve the problem, because BE nodes with normal heartbeat will not always work In my opinion, this single point of failure should be fault-tolerant for distributed systems. ### Use case _No response_ ### Related issues _No response_ ### Are you willing to submit PR? - [ ] Yes I am willing to submit a PR! ### Code of Conduct - [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct) -- 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: commits-unsubscr...@doris.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org