Memcached is an in-memory key-value store for small chunks of arbitrary data(strings, objects) from results of database calls, API calls, or page rendering.For more information visitmemcached.org.

This functionality is only available for agents running on Linux. It isnot available on Windows.

Discovery

Even if the memcached plugin is not configured, Cloud Monitoring willdiscover memcached services running in your Cloud Platform project by:

• Searching instance names formemcached
• Checking for ports opened to11211 via firewall rules

To see the metrics for Memcached, do the following:

1. In the Google Cloud console, go to the Dashboards page:

   Go toDashboards

   If you use the search bar to find this page, then select the result whose subheading isMonitoring.

2. Select theMemcached dashboard from the list.

Configuring Monitoring to monitor memcached

After youinstall the monitoring agent, use the followinginstructions to configure the memcached plugin on your instances.

Enabling the memcached monitoring plugin

On your VM instance, downloadmemcached.conf from theGitHub configuration repository and place it in the directory/etc/stackdriver/collectd.d/:

(cd /etc/stackdriver/collectd.d/ && sudo curl -O https://raw.githubusercontent.com/Stackdriver/stackdriver-agent-service-configs/master/etc/collectd.d/memcached.conf)

After adding the configuration file, restart the monitoring agent by running the following command:

sudo service stackdriver-agent restart

For more information on thecollectdmemcached plugin, seePlugin:memcached.

What is monitored

The full list of metrics the Memcached plugin monitors is atAgent metrics: memcached.