We’re excited to announce that we’ve recently added Varnish monitoring support for Google Cloud Platform. You can check it out here!
Below are steps to get up and running quickly with observIQ’s Google Cloud Platform integrations, and monitor metrics and logs from Varnish in your Google Cloud Platform. You can check out Google’s documentation for using the Ops Agent for Varnish here: https://cloud.google.com/stackdriver/docs/solutions/agents/ops-agent/install-index
What signals matter?
Varnish is a popular content streaming technology. Important metrics include information from clients, performance, threads, and backend.
- Client Metrics
- Connections
- Requests
- Performance Metrics
- Cache Hits
- Evictions
- Thread Metrics
- Creations
- Failures
- Backend Metrics
- Success
- Failures
- General health
All of the above categories can be gathered with the Varnish receiver – so let’s get started.
Before you begin
If you don’t already have an Ops Agent with the latest Varnish receiver installed, you’ll need to do that first. Check out the Google Cloud Platform Ops Agent documentation for installation methods, including the one-line installer.
Configuring the Varnish receiver for Metrics and Logs
Navigate to your Ops Agent configuration file. You’ll find it in the following location:
- /etc/google-cloud-ops-agent/config.yaml (Linux)
Edit the configuration file for Varnish metrics as shown below:
metrics:
receivers:
varnish:
type: varnish
service:
pipelines:
varnish:
receivers:
- varnish
For Logging, add the following in the same yaml config file:
logging:
receivers:
varnish:
type: varnish
service:
pipelines:
varnish:
receivers:
- varnish
Restart the Ops Agent with the following command:
sudo service google-cloud-ops-agent restart
sleep 30
Viewing the metrics collected
If you followed the steps detailed above, the following Varnish metrics will now be delivered to your preferred destination.
| Metric | Description |
|---|---|
| varnish.backend.connection.count | The backend connection type count. |
| varnish.cache.operation.count | The cache operation type count. |
| varnish.thread.operation.count | The thread operation type count. |
| varnish.session.count | The session connection type count. |
| varnish.object.nuked | The objects that have been forcefully evicted from storage count. |
| varnish.object.moved | The moved operations done on the LRU list count. |
| varnish.object.expired | The expired objects from old age count. |
| varnish.object.count | The HTTP objects in the cache count. |
| varnish.client.request.count | The client request count. |
| varnish.client.request.error.count | The client request errors received by status code. |
| varnish.backend.request.count | The backend requests count. |
Varnish is a high performance web application accelerator for caching requests and delivering content. observIQ’s monitoring technology is a game changer for organizations that care about performance and efficiency. If you’re using Varnish, our solutions can make a significant difference in your infrastructure monitoring. Follow this space to keep up with all our future posts and simplified configurations for various sources.
For questions, requests, and suggestions, reach out to our support team at support@observIQ.com or join us on Slack!
