Nitin-Kashyap opened a new pull request, #47907: URL: https://github.com/apache/doris/pull/47907
### What problem does this PR solve? When nginx enables proxy_protocol, and use health "check type=mysql"; causes check to fail. Since, per mysql-protocol client expects server params on connect without any transmission from client, However, ProxyProtocol enabled case server expects PROXY v1/v2 header. when nginx enables health check with type=mysql; without protocol header connection attempt is done, which will block for 600s. Effectively deselected for connection from nginx. Issue Number: close #xxx Related PR: #xxx Problem Summary: ### Release note None ### Check List (For Author) - Test <!-- At least one of them must be included. --> - [ ] Regression test - [x] Unit Test - [ ] Manual test (add detailed scripts or steps below) - [ ] No need to test or manual test. Explain why: - [ ] This is a refactor/code format and no logic has been changed. - [ ] Previous test can cover this change. - [ ] No code files have been changed. - [ ] Other reason <!-- Add your reason? --> - Behavior changed: - [ ] No. - [x] Yes. <!-- Explain the behavior change --> When `enable_proxy_protocol=true`, On direct connection to FE will have 1s wait on initial connection. - Does this need documentation? - [x] No. - [ ] Yes. <!-- Add document PR link here. eg: https://github.com/apache/doris-website/pull/1214 --> ### Check List (For Reviewer who merge this PR) - [ ] Confirm the release note - [ ] Confirm test cases - [ ] Confirm document - [ ] Add branch pick label <!-- Add branch pick label that this PR should merge into --> -- 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 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