This plugin collects metrics from /proc/stat kernel information about the amount of time, measured in units of USER_HZ (1/100ths of a second on most architectures, use sysconf(_SC_CLK_TCK) to obtain the right value), that the system spent in various states.
It's used in the Snap framework.
- golang 1.5+ - needed only for building
All OSs currently supported by plugin:
- Linux/amd64
You can get the pre-built binaries for your OS and architecture at Snap's GitHub Releases page. Download the plugins package from the latest release, unzip and store in a path you want snapteld to access.
Fork https://github.com/intelsdi-x/snap-plugin-collector-cpu
Clone repo into $GOPATH/src/github.com/intelsdi-x/:
$ git clone https://github.com/<yourGithubID>/snap-plugin-collector-cpu.git
Build the plugin by running make within the cloned repo:
$ make
This builds the plugin in /build/$GOOS/$GOARCH
- Set up the Snap framework
- If /proc resides in a different directory, say for example by mounting host /proc inside a container at /hostproc, a proc_path configuration item can be added to snapteld global config or as part of the task manifest for the metrics to be collected.
As part of snapteld global config
---
control:
plugins:
collector:
cpu:
all:
proc_path: /hostprocOr as part of the task manifest
{
...
"workflow": {
"collect": {
"metrics": {
"/intel/procfs/cpu/*/user_jiffies" : {}
},
"config": {
"/intel/procfs": {
"proc_path": "/hostproc"
}
},
...
},
},
...- Load the plugin and create a task, see example in Examples.
Collected metrics have namespace in following format: /intel/procfs/cpu/<cpu_identifier>/<metric_name>.
List of collected metrics in METRICS.md
./examples/run-cpu-file.shExample running CPU collector plugin and writing data to a file using file publisher plugin.
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 and trust disabled):
$ snapteld -l 1 -t 0
In another terminal window:
Load snap-plugin-collector-cpu plugin:
$ snaptel plugin load snap-plugin-collector-cpu
See available metrics for your system:
$ snaptel metric list
Get file plugin for publishing, appropriate for Linux or Darwin:
$ wget http://snap.ci.snap-telemetry.io/plugins/snap-plugin-publisher-file/latest/linux/x86_64/snap-plugin-publisher-file
or
$ wget http://snap.ci.snap-telemetry.io/plugins/snap-plugin-publisher-file/latest/darwin/x86_64/snap-plugin-publisher-file
Load file plugin for publishing:
$ snaptel plugin load snap-plugin-publisher-file
Create a task manifest file (see [exemplary files] (https://github.com/intelsdi-x/snap-plugin-collector-cpu/blob/master/examples/tasks/)):
{
"version": 1,
"schedule": {
"type": "simple",
"interval": "5s"
},
"workflow": {
"collect": {
"metrics": {
"/intel/procfs/cpu/*/active_jiffies": {},
"/intel/procfs/cpu/*/active_percentage": {},
"/intel/procfs/cpu/*/guest_jiffies": {},
"/intel/procfs/cpu/*/guest_nice_jiffies": {},
"/intel/procfs/cpu/*/guest_nice_percentage": {},
"/intel/procfs/cpu/*/guest_percentage": {},
"/intel/procfs/cpu/*/idle_jiffies": {},
"/intel/procfs/cpu/*/idle_percentage": {},
"/intel/procfs/cpu/*/iowait_jiffies": {},
"/intel/procfs/cpu/*/iowait_percentage": {},
"/intel/procfs/cpu/*/irq_jiffies": {},
"/intel/procfs/cpu/*/irq_percentage": {},
"/intel/procfs/cpu/*/nice_jiffies": {},
"/intel/procfs/cpu/*/nice_percentage": {},
"/intel/procfs/cpu/*/softirq_jiffies": {},
"/intel/procfs/cpu/*/softirq_percentage": {},
"/intel/procfs/cpu/*/steal_jiffies": {},
"/intel/procfs/cpu/*/steal_percentage": {},
"/intel/procfs/cpu/*/system_jiffies": {},
"/intel/procfs/cpu/*/system_percentage": {},
"/intel/procfs/cpu/*/user_jiffies": {},
"/intel/procfs/cpu/*/user_percentage": {},
"/intel/procfs/cpu/*/utilization_jiffies": {},
"/intel/procfs/cpu/*/utilization_percentage": {}
},
"config": {
"/intel/procfs/cpu": {
"proc_path": "/proc"
}
},
"publish": [
{
"plugin_name": "file",
"config": {
"file": "/tmp/published_cpu.log"
}
}
]
}
}
}Create a task:
$ snaptel task create -t cpu-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:
$ snaptel task stop 02dd7ff4-8106-47e9-8b86-70067cd0a850
Task stopped:
ID: 02dd7ff4-8106-47e9-8b86-70067cd0a850
There isn't a current roadmap for this plugin, but it is in active development. As we launch this plugin, we do not have any outstanding requirements for the next release. If you have a feature request, please add it as an issue and/or submit a pull request.
If you have a feature request, please add it as an issue.
This repository is one of many plugins in Snap, a powerful telemetry framework. The full project is at http://github.com/intelsdi-x/snap. To reach out on other use cases, visit Slack.
We love contributions!
There's more than one way to give back, from examples to blogs to code updates. See our recommended process in CONTRIBUTING.md.
And thank you! Your contribution, through code and participation, is incredibly important to us.
Snap, along with this plugin, is an Open Source software released under the Apache 2.0 License.
- Author: Katarzyna Zabrocka