branch-4.0: [fix] Preserve CurrentConnected in frontends() TVF #61087#61532
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yiguolei merged 1 commit intobranch-4.0from Mar 20, 2026
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branch-4.0: [fix] Preserve CurrentConnected in frontends() TVF #61087#61532yiguolei merged 1 commit intobranch-4.0from
yiguolei merged 1 commit intobranch-4.0from
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Cause: - FRONTENDS() goes through metadata scan and may be generated on master FE. - In this path, currentConnectedFE context is not always preserved, so CurrentConnected falls back to master and WHERE CURRENTCONNECTED='Yes' always matches master. Fix: - Reuse TFrontendsMetadataParams.cluster_name as a pass-through slot to carry the FE host that accepted the client connection from TVF planning to metadata generation. - Populate this host in FrontendsTableValuedFunction#getMetaScanRange (prefer ConnectContext.currentConnectedFEIp, fallback to self host). - Read and apply it in MetadataGenerator#frontendsMetadataResult via FrontendsProcNode#getFrontendsInfo(env, infos, currentConnectedFeHost). - Add comments at write/read points to explain why cluster_name is reused for this pass-through. Verification: - FE UT: org.apache.doris.tablefunction.FrontendsTableValuedFunctionTest
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Cherry-picked from #61087