etcd KV Store Integration
The etcd KV Store integration installs and configures Telegraf to send etcd KV Store performance metrics to Wavefront. Telegraf is a light-weight server process that can collect, process, aggregate and send metrics to a Wavefront proxy.
In addition to setting up the metrics flow, this integration also installs a dashboard. Here’s the Cluster Health section of a dashboard displaying etcd metrics.
To see a list of the metrics for this integration, select the integration from https://github.com/influxdata/telegraf/tree/master/plugins/inputs.
etcd Distributed Database Setup
This integration uses the Prometheus Telegraf input plugin.
Step 1. Install the Telegraf Agent
Follow the steps below to install the Telegraf agent and optional Wavefront proxy. Telegraf agent can be installed on a node where etcd is running or on a node that has access to the metrics endpoint of etcd. If you’ve already installed the agent and proxy, you can skip to Step 2.
Log in to your Wavefront instance and follow the instructions in the Setup tab to install Telegraf and a Wavefront proxy in your environment. If a proxy is already running in your environment, you can select that proxy and the Telegraf install command connects with that proxy. Sign up for a free trial to check it out!
Step 2. Configure Prometheus Input Plugin
Create a file called etcd.conf in /etc/telegraf/telegraf.d and enter the following snippet:
[[inputs.prometheus]]
urls = ["http://<Host-IP>:2379/metrics"]
Configure global tags in the telegraf.conf file to group etcd nodes into clusters, as in the following snippet:
[global_tags]
#Setting environment tags like prod, dev, perf, and test
env = "prod"
Step 3. Restart Telegraf
Run sudo service telegraf restart to restart your agent.