Memcach stat collector plugin for Snap
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Type Name Latest commit message Commit time
Failed to load latest commit information.

snap collector plugin - memcache

This plugin collects memcache performance metrics.

It's used in the snap framework.

  1. Getting Started
  1. Documentation
  1. License
  2. Acknowledgements

Getting Started

System Requirements

Operating systems

All OSs currently supported by snap:

  • Linux/amd64


Download memcache plugin binary:


To build the plugin binary:

Clone repo into $GOPATH/src/

$ git clone<yourGithubID>/snap-plugin-collector-memcache.git

Build the plugin by running make within the cloned repo:

$ make

This builds the plugin in /build/rootfs/

Configuration and Usage


###Global config Global configuration files are described in snap's documentation. You have to add "memcache" section with following entries:

  • "server" - host:port of the memcached server. eg
  • "proto" - Protocol to use to connect to Memcached. tcp, tcp4, or tcp6

See exemplary Global configuration files in [examples/configs/] (

Collected Metrics

List of collected metrics is described in


Example running memcache collector and writing data to a file.

Make sure that your $SNAP_PATH is set, if not:

$ export SNAP_PATH=<snapDirectoryPath>/build

Other paths to files should be set according to your configuration, using a file you should indicate where it is located.

In one terminal window, open the snap daemon (in this case with logging set to 1, trust disabled and global configuration saved in config.json ):

$ $SNAP_PATH/bin/snapd -l 1 -t 0 --config config.json

In another terminal window: Load memcache plugin

$ $SNAP_PATH/bin/snapctl plugin load snap-plugin-collector-memcache

See available metrics for your system

$ $SNAP_PATH/bin/snapctl metric list

Create a task manifest file (exemplary files in [examples/tasks/] (

    "version": 1,
    "schedule": {
        "type": "simple",
        "interval": "1s"
    "workflow": {
        "collect": {
            "metrics": {
                "/raintank/memcache/*": {}
            "process": null,
            "publish": [
                    "plugin_name": "file",
                    "config": {
                        "file": "/tmp/published_memcache"

Load file plugin for publishing:

$ $SNAP_PATH/bin/snapctl plugin load $SNAP_PATH/plugin/snap-publisher-file
Plugin loaded
Name: file
Version: 3
Type: publisher
Signed: false
Loaded Time: Fri, 20 Nov 2015 11:41:39 PST

Create a task:

$ $SNAP_PATH/bin/snapctl task create -t examples/tasks/memcache-file.json
Using task manifest to create task
Task created
ID: 02dd7ff4-8106-47e9-8b86-70067cd0a850
Name: Task-02dd7ff4-8106-47e9-8b86-70067cd0a850
State: Running

Stop previously created task:

$ $SNAP_PATH/bin/snapctl task stop 02dd7ff4-8106-47e9-8b86-70067cd0a850
Task stopped:
ID: 02dd7ff4-8106-47e9-8b86-70067cd0a850


This plugin is Open Source software released under the Apache 2.0 License.