[Backport] ServiceClient: More robust redirect handling#13445
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abhishekagarwal87 merged 1 commit intoapache:25.0.0from Nov 30, 2022
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[Backport] ServiceClient: More robust redirect handling#13445abhishekagarwal87 merged 1 commit intoapache:25.0.0from
abhishekagarwal87 merged 1 commit intoapache:25.0.0from
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Detects self-redirects, redirect loops, long redirect chains, and redirects to unknown servers. Treat all of these cases as an unavailable service, retrying if the retry policy allows it. Previously, some of these cases would lead to a prompt, unretryable error. This caused clients contacting an Overlord during a leader change to fail with error messages like: org.apache.druid.rpc.RpcException: Service [overlord] redirected too many times Additionally, a slight refactor of callbacks in ServiceClientImpl improves readability of the flow through onSuccess.
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Backports #13413