[codex] fix channel cache refresh after channel changes#2372
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- refresh in-memory channel selection state after channel create, update, delete, and status changes - invalidate cached per-group model lists so model discovery and routing stay consistent - add regression coverage for channel cache refresh behavior - document the cache refresh behavior in changelog and FAQ
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Summary
/v1/modelsstays consistent with request routingRoot Cause
On Redis-backed deployments, startup enables the in-memory channel selection cache and refreshes it on the periodic sync loop. Channel mutations updated the database and
abilitiestable immediately, but request routing could still use stale in-memory channel state until the next sync. During that window, users could see newly available models from/v1/modelswhile actual requests failed withno available channels.Testing
env -u GOROOT -u GOPATH -u GOTOOLDIR CGO_ENABLED=1 /opt/homebrew/bin/go test ./model ./controller/...git diff --check