fix(distributed): aggregate prefix cache pressure - #11229
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fix(distributed): aggregate prefix cache pressure#11229localai-org-maint-bot wants to merge 1 commit into
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Broadcast forced-disturb events and successful scale-up resets so every frontend shares the same rolling autoscale signal. Deduplicate NATS echoes, expose an origin-only Prometheus counter, and document cluster behavior. Closes #10083 Assisted-by: Codex:gpt-5
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Description
Fixes #10083.
Forced-disturb events are now broadcast across frontend replicas and deduplicated by event ID, including each publisher's own NATS echo. A successful pressure-triggered scale-up also broadcasts its reset so peers consume the same signal. The change adds
localai_prefix_cache_forced_disturb_total{model="..."}for operator visibility and documents the cluster-wide behavior.Notes for Reviewers
go test -race ./core/services/messaging ./core/services/nodes/prefixcachego test -count=1 ./core/services/messaging ./core/services/nodes/prefixcache ./pkg/natsauth ./core/applicationgo vet ./core/services/messaging ./core/services/nodes/prefixcache ./pkg/natsauth ./core/applicationgo test ./core/services/nodes/...suite could not run in this environment because its Postgres test setup requires rootless Docker; 200 specs failed inBeforeEachwithrootless Docker not found, while 254 specs passed.Signed commits