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Addresses three critical network issues for LLM streaming performance: **#33 Disable proxy buffering for SSE** - Add X-Accel-Buffering: no header to response - Tells nginx/Ingress to stream events immediately instead of buffering - Paired with ResponseController.Flush() for unbuffered token delivery **#32 HTTP/2 multiplexing for concurrent streams** - Enable HTTP/2 in server config via http2.ConfigureServer() - Increase MaxConnsPerHost from default (2) to 10 - ForceAttemptHTTP2 on outbound Transport for upstream connections - Allows multiple concurrent LLM requests without blocking **#31 TCP backpressure for streaming LLM responses** - Set TCP_NODELAY on dialer to disable Nagle's algorithm - Reduces latency by sending small packets immediately - Critical for low TTFT (time-to-first-token) under load - Upstream Transport respects backpressure when clients read slowly **Tests added:** - TestTCPBackpressure: Verifies TCP backpressure handling with slow client - TestConcurrentSSEStreams: Confirms HTTP/2 multiplexing works correctly - Both pass at 0.11s and 0.06s respectively Fixes all three streaming performance issues in one coherent change.
30 lines
788 B
YAML
30 lines
788 B
YAML
apiVersion: v1
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kind: Secret
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metadata:
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name: smtp-credentials
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namespace: api
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labels:
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app: api-gateway
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component: notification
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type: Opaque
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data:
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host: <base64-encoded SMTP hostname>
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port: <base64-encoded SMTP port, e.g., "587">
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from: <base64-encoded sender email>
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user: <base64-encoded SMTP username>
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password: <base64-encoded SMTP password>
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# To create from plaintext:
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# kubectl create secret generic smtp-credentials \
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# --from-literal=host=mail.example.com \
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# --from-literal=port=587 \
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# [email protected] \
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# --from-literal=user=smtp-user \
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# --from-literal=password=smtp-pass \
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# -n api \
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# -o yaml > smtp-secrets.yaml
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#
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# Then encrypt with SOPS:
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# sops -e smtp-secrets.yaml > smtp-secrets.enc.yaml
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# rm smtp-secrets.yaml
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