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* Add HPA support to tei, teireranking, tgi services Signed-off-by: Alexey Fomenko <[email protected]> * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Consolidate HPA documentation Signed-off-by: Alexey Fomenko <[email protected]> --------- Signed-off-by: Alexey Fomenko <[email protected]> Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| # Copyright (C) 2024 Intel Corporation | ||
| # SPDX-License-Identifier: Apache-2.0 | ||
|
|
||
| {{- if .Values.global.horizontalPodAutoscaler.enabled }} | ||
| apiVersion: v1 | ||
| data: | ||
| config.yaml: | | ||
| rules: | ||
| - seriesQuery: '{__name__="tgi_request_inference_duration_sum",service="{{ include "tgi.fullname" .Subcharts.tgi }}"}' | ||
| # Average request latency from TGI histograms, over 1 min | ||
| # (0.001 divider add is to make sure there's always a valid value) | ||
| metricsQuery: 'rate(tgi_request_inference_duration_sum{service="{{ include "tgi.fullname" .Subcharts.tgi }}",<<.LabelMatchers>>}[1m]) / (0.001+rate(tgi_request_inference_duration_count{service="{{ include "tgi.fullname" .Subcharts.tgi }}",<<.LabelMatchers>>}[1m]))' | ||
| name: | ||
| matches: ^tgi_request_inference_duration_sum | ||
| as: "tgi_request_latency" | ||
| resources: | ||
| # HPA needs both namespace + suitable object resource for its query paths: | ||
| # /apis/custom.metrics.k8s.io/v1beta1/namespaces/default/service/*/tgi_request_latency | ||
| # (pod is not suitable object type for matching as each instance has different name) | ||
| overrides: | ||
| namespace: | ||
| resource: namespace | ||
| service: | ||
| resource: service | ||
| - seriesQuery: '{__name__="te_request_inference_duration_sum",service="{{ include "teirerank.fullname" .Subcharts.teirerank }}"}' | ||
| # Average request latency from TEI histograms, over 1 min | ||
| metricsQuery: 'rate(te_request_inference_duration_sum{service="{{ include "teirerank.fullname" .Subcharts.teirerank }}",<<.LabelMatchers>>}[1m]) / (0.001+rate(te_request_inference_duration_count{service="{{ include "teirerank.fullname" .Subcharts.teirerank }}",<<.LabelMatchers>>}[1m]))' | ||
| name: | ||
| matches: ^te_request_inference_duration_sum | ||
| as: "reranking_request_latency" | ||
| resources: | ||
| overrides: | ||
| namespace: | ||
| resource: namespace | ||
| service: | ||
| resource: service | ||
| - seriesQuery: '{__name__="te_request_inference_duration_sum",service="{{ include "tei.fullname" .Subcharts.tei }}"}' | ||
| # Average request latency from TEI histograms, over 1 min | ||
| metricsQuery: 'rate(te_request_inference_duration_sum{service="{{ include "tei.fullname" .Subcharts.tei }}",<<.LabelMatchers>>}[1m]) / (0.001+rate(te_request_inference_duration_count{service="{{ include "tei.fullname" .Subcharts.tei }}",<<.LabelMatchers>>}[1m]))' | ||
| name: | ||
| matches: ^te_request_inference_duration_sum | ||
| as: "embedding_request_latency" | ||
| resources: | ||
| overrides: | ||
| namespace: | ||
| resource: namespace | ||
| service: | ||
| resource: service | ||
| kind: ConfigMap | ||
| metadata: | ||
| name: adapter-config | ||
| namespace: monitoring | ||
| {{- end }} |
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51 changes: 51 additions & 0 deletions
51
helm-charts/common/tei/templates/horizontalPodAutoscaler.yaml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| # Copyright (C) 2024 Intel Corporation | ||
| # SPDX-License-Identifier: Apache-2.0 | ||
|
|
||
| {{- if .Values.global.horizontalPodAutoscaler.enabled }} | ||
| apiVersion: autoscaling/v2 | ||
| kind: HorizontalPodAutoscaler | ||
| metadata: | ||
| name: {{ include "tei.fullname" . }} | ||
| spec: | ||
| scaleTargetRef: | ||
| apiVersion: apps/v1 | ||
| kind: Deployment | ||
| name: {{ include "tei.fullname" . }} | ||
| minReplicas: 1 | ||
| maxReplicas: {{ .Values.horizontalPodAutoscaler.maxReplicas }} | ||
| metrics: | ||
| - type: Object | ||
| object: | ||
| metric: | ||
| # tei-embedding time metrics are in seconds | ||
| name: embedding_request_latency | ||
| describedObject: | ||
| apiVersion: v1 | ||
| # get metric for named object of given type (in same namespace) | ||
| kind: Service | ||
| name: {{ include "tei.fullname" . }} | ||
| target: | ||
| # embedding_request_latency is average for all TEI pods. To avoid replica fluctuations when | ||
| # TEI startup + request processing takes longer than HPA evaluation period, this uses | ||
| # "Value" (replicas = metric.value / target.value), instead of "averageValue" type: | ||
| # https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/#algorithm-details | ||
| type: Value | ||
| value: 4 | ||
| behavior: | ||
| scaleDown: | ||
| stabilizationWindowSeconds: 180 | ||
| policies: | ||
| - type: Percent | ||
| value: 25 | ||
| periodSeconds: 15 | ||
| scaleUp: | ||
| selectPolicy: Max | ||
| stabilizationWindowSeconds: 0 | ||
| policies: | ||
| - type: Percent | ||
| value: 50 | ||
| periodSeconds: 15 | ||
| - type: Pods | ||
| value: 2 | ||
| periodSeconds: 15 | ||
| {{- end }} |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| # Copyright (C) 2024 Intel Corporation | ||
| # SPDX-License-Identifier: Apache-2.0 | ||
|
|
||
| {{- if .Values.global.horizontalPodAutoscaler.enabled }} | ||
| apiVersion: monitoring.coreos.com/v1 | ||
| kind: ServiceMonitor | ||
| metadata: | ||
| name: {{ include "tei.fullname" . }} | ||
| spec: | ||
| selector: | ||
| matchLabels: | ||
| {{- include "tei.selectorLabels" . | nindent 6 }} | ||
| endpoints: | ||
| - interval: 4s | ||
| port: tei | ||
| scheme: http | ||
| {{- end }} |
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