deardeng opened a new pull request, #66190: URL: https://github.com/apache/doris/pull/66190
pick from https://github.com/apache/doris/pull/65994 Problem Summary: When the Thrift connection to FE is unstable, a partially deserialized TShowVariableResult can contain variable rows with fewer than four fields. SchemaVariablesScanner accessed fields 0 through 3 unconditionally and could crash the BE process. Validate every row before accessing its fields and return an InternalError asking the user to retry when the response is incomplete. ### Release note Fix a BE crash when scanning variables after receiving an incomplete FE response; the query now returns an error asking the user to retry. (cherry picked from commit d3bf6b89bdedfa38d17d99c287c2c1b37304cd9f) ### What problem does this PR solve? 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 - [ ] 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. - [ ] Yes. <!-- Explain the behavior change --> - Does this need documentation? - [ ] 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: [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]
