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Data Infrastructure Insights

Memcached Data Collector

Contributors netapp-alavoie dgracenetapp
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Data Infrastructure Insights uses this data collector to gather metrics from Memcached.

Installation

  1. From Observability > Collectors, click +Data Collector. Choose Memcached.

    Select the Operating System or Platform on which the Telegraf agent is installed.

  2. If you haven't already installed an Agent for collection, or you wish to install an Agent for a different Operating System or Platform, click Show Instructions to expand the Agent installation instructions.

  3. Select the Agent Access Key for use with this data collector. You can add a new Agent Access Key by clicking the + Agent Access Key button. Best practice: Use a different Agent Access Key only when you want to group data collectors, for example, by OS/Platform.

  4. Follow the configuration steps to configure the data collector. The instructions vary depending on the type of Operating System or Platform you are using to collect data.

Memcached configuration

Setup

Information may be found in the Memcached wiki.

Objects and Counters

The following objects and their counters are collected:

Object: Identifiers: Attributes: Datapoints:

Memcached

Namespace
Server

Node IP
Node Name

Accepting Connections
Handled Authentication Requests
Failed Authentications
Bytes Used
Bytes Read (per sec)
Bytes Written (per sec)
CAS Badval
CAS Hits
CAS Misses
Flush Reqs (per sec)
Get Reqs (per sec)
Set Reqs (per sec)
Touch Reqs (per sec)
Connection Yields (per sec)
Connection Structures
Open Connections
Current Stored Items
Decr Requests Hits (per sec)
Decr Requests Misses (per sec)
Delete Requests Hits (per sec)
Delete Requests Misses (per sec)
Items Evicted
Valid Evictions
Expired Items
Get Hits (per sec)
Get Misses (per sec)
Used Hash Bytes
Hash Is Expanding
Hash Power Level
Incr Requests Hits (per sec)
Incr Requests Misses (per sec)
Server Max Bytes
Listen Disabled Num
Reclaimed
Worker Threads Count
Total Opened Connections
Total Items Stored
Touch Hits
Touch Misses
Server Uptime

Troubleshooting

Additional information may be found from the Support page.