errors.rules

# Copyright 2018 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

groups:
  - name: errors
    rules:
      - record: task:requests:rate10s
        expr: rate(requests[10s])

      - record: job:requests:rate10s
        expr: sum by (job)(task:requests:rate10s)

      - record: task:errors:rate10s
        expr: rate(errors[10s])

      - record: task:errors:ratio_rate10s
        expr:    sum by (instance)(task:errors:rate10s)            / on (instance)   task:requests:rate10s

        

      - record:     job:errors:rate10s
        expr: sum by (job, code)(task:errors:rate10s)

      - record: job:errors:ratio_rate10s
        expr:    sum by (job)(job:errors:rate10s)            / on (job)   job:requests:rate10s

      - alert: ErrorRatioTooHigh
        expr: job:errors:ratio_rate10s > 0.2
        for: 2s
        annotations:
          summary: "Error ratio on {{ $labels.job }} exceeds 20%"
          description: "Error ratio on {{ $labels.job }} is at {{ $value }}. http:/localhost:9090{{ graphLink \"job:errors:rate10s\" }}"