Etcd Key/Value Store Monitoring

Database - Etcd Opspack

etcd is a distributed key/value store that provides a reliable way to store data across a cluster of machines. It’s open-source and available on GitHub. etcd gracefully handles leader elections during network partitions and will tolerate machine failure, including the leader.

What You Can Monitor

Monitors the performance and system status for an etcd database v2 and v3.

Note: etcd version 3 is only supported when running etcd with API Version 2

Service Checks

Service Check	Description
Etcd - Client Sent and Received Bytes	Sent and Received bytes for client (calculated using TimeSeries counter feature to work out the rate of change)
Etcd - Durations	The latency durations of commits called by backend and fsync called by wal
Etcd - File Descriptors	Max number and current number of file descriptors
Etcd - HTTP Requests Made	Total number of HTTP requests made (calculated using TimeSeries counter feature to work out the rate of change)
Etcd - Leader Changes Seen	The number of changes to the leader (calculated using TimeSeries counter feature to work out the rate of change)
Etcd - Proposals	Number of proposals applied, committed, pending and failed to the system
Etcd - Watchers	Number of current watchers

Setup and Configuration

Step 1: Add the host template

Add the Database - Etcd Host Template to your Opsview Monitor host.

For more information, refer to Opsview Knowledge Center - Adding Host Templates to Hosts.

Step 2: Add and configure variables required for this host

Variable	Description
ETCD	Used to override the API version and port number.
ETCD_TLS	Used to enable and configure TLS connections to Etcd. To enable set TLS Enabled Flag to `--tls`. Setting CA Path enables a custom CA to be included in the server certificate checking, and Certificate Path and Key Path are the client certificate and associated private key.