feat(backup_request): add rate-limited backup request policy (#3228)#3229

Merged

wwbmmm merged 9 commits intoapache:masterfrom

feng-y:feat/rate-limited-backup-request

Mar 2, 2026

Commits on Mar 1, 2026

feat(backup_request): add rate-limited backup request policy (#3228)
feng-y
committed
docs(backup_request): restructure rate-limiting section, add lifecycle guidance
feng-y
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fix(backup_request): address review issues — sentinel fallback, comments, tests
feng-y
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fix(backup_request): correct docs table defaults and add suppression test
feng-y
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fix(backup_request): clarify comments — negative defer semantics and burst caveat
feng-y
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fix(backup_request): address Copilot review — sentinel contract, OnRPCEnd comment, re-allow test, docs
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fix(backup_request): explain why std::nothrow is intentionally omitted
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docs(backup_request): clarify policy lifetime — channel must be destroyed before policy
feng-y
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test(backup_request): fix inaccurate cold-start comment in ValidMaxRatioAtBoundary
feng-y
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