# Monitor CockroachDB metrics with Netdata [CockroachDB](https://github.com/cockroachdb/cockroach) is an open-source project that brings SQL databases into scalable, disaster-resilient cloud deployments. Thanks to a [new CockroachDB collector](https://github.com/netdata/netdata/blob/master/src/go/collectors/go.d.plugin/modules/cockroachdb/README.md) released in [v1.20](https://blog.netdata.cloud/posts/release-1.20/), you can now monitor any number of CockroachDB databases with maximum granularity using Netdata. Collect more than 50 unique metrics and put them on interactive visualizations designed for better visual anomaly detection. Netdata itself uses CockroachDB as part of its Netdata Cloud infrastructure, so we're happy to introduce this new collector and help others get started with it straight away. Let's dive in and walk through the process of monitoring CockroachDB metrics with Netdata. ## What's in this guide - [Monitor CockroachDB metrics with Netdata](#monitor-cockroachdb-metrics-with-netdata) - [What's in this guide](#whats-in-this-guide) - [Configure the CockroachDB collector](#configure-the-cockroachdb-collector) - [Manual setup for a local CockroachDB database](#manual-setup-for-a-local-cockroachdb-database) - [Tweak CockroachDB alerts](#tweak-cockroachdb-alerts) ## Configure the CockroachDB collector Because _all_ of Netdata's collectors can auto-detect the services they monitor, you _shouldn't_ need to worry about configuring CockroachDB. Netdata only needs to regularly query the database's `_status/vars` page to gather metrics and display them on the dashboard. If your CockroachDB instance is accessible through `http://localhost:8080/` or `http://127.0.0.1:8080`, your setup is complete. Restart Netdata with `sudo systemctl restart netdata`, or the [appropriate method](https://github.com/netdata/netdata/blob/master/packaging/installer/README.md#maintaining-a-netdata-agent-installation) for your system, and refresh your browser. You should see CockroachDB metrics in your Netdata dashboard!

> Note: Netdata collects metrics from CockroachDB every 10 seconds, instead of our usual 1 second, because CockroachDB > only updates `_status/vars` every 10 seconds. You can't change this setting in CockroachDB. If you don't see CockroachDB charts, you may need to configure the collector manually. ### Manual setup for a local CockroachDB database To configure Netdata's CockroachDB collector, navigate to your Netdata configuration directory (typically at `/etc/netdata/`) and use `edit-config` to initialize and edit your CockroachDB configuration file. ```bash cd /etc/netdata/ # Replace with your Netdata configuration directory, if not /etc/netdata/ ./edit-config go.d/cockroachdb.conf ``` Scroll down to the `[JOBS]` section at the bottom of the file. You will see the two default jobs there, which you can edit, or create a new job with any of the parameters listed above in the file. Both the `name` and `url` values are required, and everything else is optional. For a production cluster, you'll use either an IP address or the system's hostname. Be sure that your remote system allows TCP communication on port 8080, or whichever port you have configured CockroachDB's [Admin UI](https://www.cockroachlabs.com/docs/stable/monitoring-and-alerting.html#prometheus-endpoint) to listen on. ```yaml # [ JOBS ] jobs: - name: remote url: http://203.0.113.0:8080/_status/vars - name: remote_hostname url: http://cockroachdb.example.com:8080/_status/vars ``` For a secure cluster, use `https` in the `url` field instead. ```yaml # [ JOBS ] jobs: - name: remote url: https://203.0.113.0:8080/_status/vars tls_skip_verify: yes # If your certificate is self-signed - name: remote_hostname url: https://cockroachdb.example.com:8080/_status/vars tls_skip_verify: yes # If your certificate is self-signed ``` You can add as many jobs as you'd like based on how many CockroachDB databases you have—Netdata will create separate charts for each job. Once you've edited `cockroachdb.conf` according to the needs of your infrastructure, restart Netdata to see your new charts.

## Tweak CockroachDB alerts This release also includes eight pre-configured alerts for live nodes, such as whether the node is live, storage capacity, issues with replication, and the number of SQL connections/statements. See [health.d/cockroachdb.conf on GitHub](https://raw.githubusercontent.com/netdata/netdata/master/src/health/health.d/cockroachdb.conf) for details. You can also edit these files directly with `edit-config`: ```bash cd /etc/netdata/ # Replace with your Netdata configuration directory, if not /etc/netdata/ ./edit-config health.d/cockroachdb.conf # You may need to use `sudo` for write privileges ``` For more information about editing the defaults or writing new alert entities, see our documentation on [configuring health alerts](https://github.com/netdata/netdata/blob/master/src/health/REFERENCE.md).