Arrow Left IconExplore Scalers

Use events from CouchDB to trigger autoscaling with Kedify and KEDA

Book demo !
CouchDB Diagram

CouchDB is a NoSQL database well-suited for web applications, using JSON for documents and featuring a robust, user-friendly HTTP API.

Integrated with KEDA, CouchDB enables precise autoscaling of Kubernetes applications based on real-time data changes, allowing for highly responsive and efficient scaling strategies tailored to current workload demands.

Featured Use Cases

Scenario:

A content management system needs to scale its caching layer dynamically as the number of new comments or page views spikes during high traffic events.

CouchDB Scaler Usage:

Scaling is triggered based on the count of documents tagged with "new: true" in the interactions database.

KEDA Usage:

The CMS uses KEDA to query the count of new interactions, automatically adjusting the number of cache instances to handle increased load, ensuring optimal performance and user experience.
Get Started
                    apiVersion: keda.sh/v1alpha1
kind: ScaledObject
metadata:
  name: cms-cache-scaler
  namespace: default
spec:
  scaleTargetRef:
    name: cache-service
  minReplicaCount: 2
  maxReplicaCount: 15
  triggers:
  - type: couchdb
    metadata:
      host: 'couchdb-service.default.svc.cluster.local'
      port: '5984'
      dbName: 'cms_interactions'
      query: '{ "selector": { "isNew": true }, "fields": ["_id"] }'
      queryValue: '100'
      activationQueryValue: '50'