Snap collector plugin - psutil

This plugin collects metrics from psutil which gathers information on running processes and system utilization (CPU, memory, disks, network).

It's used in the Snap framework.

  1. Getting Started
  1. Documentation
  1. Community Support
  2. Contributing
  3. License
  4. Acknowledgements

Getting Started

System Requirements

Note: This plugin does not require Python rather it depends on the go library gopsutil.

Operating systems

All OSs currently supported by snap:

  • Linux/amd64
  • Darwin/amd64

Installation

Download psutil plugin binary:

You can get the pre-built binaries for your OS and architecture under the plugin's release page. For Snap, check here.

To build the plugin binary:

Fork https://github.com/intelsdi-x/snap-plugin-collector-psutil

Clone repo into $GOPATH/src/github.com/intelsdi-x/:

$ git clone https://github.com/<yourGithubID>/snap-plugin-collector-psutil.git

Build the plugin by running make within the cloned repo:

$ make

This builds the plugin in ./build/

Configuration and Usage

Some metrics are platform specific (see gopsutil's current status).

Available configuration option:

  • mount_points - configuration of mount points to monitor, multiple paths should be separated with "|", e.g. "/|/dev|/run", default is set to collect only physical devices (hard disks, cd-rom, USB). Passing * enables collect data from all mount points.

Documentation

There are a number of other resources you can review to learn to use this plugin:

Collected Metrics

This plugin has the ability to gather the following metrics:

Namespace Description (optional)
/intel/psutil/cpu/cpu-total/guest time spent in guest mode accumulated over all cpus
/intel/psutil/cpu/cpu-total/guest_nice time spent running a niced guest (virtual CPU for guest operating systems under the control of the Linux kernel) accumulated over all cpus
/intel/psutil/cpu/cpu-total/idle time spent in the idle task accumulated over all cpus. This value should be USER_HZ times the second entry in the /proc/uptime pseudo-file
/intel/psutil/cpu/cpu-total/iowait time waiting for I/O to complete accumulated over all cpus
/intel/psutil/cpu/cpu-total/irq time servicing interrupts accumulated over all cpus
/intel/psutil/cpu/cpu-total/nice time spent in user mode with low priority (nice) accumulated over all cpus
/intel/psutil/cpu/cpu-total/softirq time spent servicing softirqs accumulated over all cpus
/intel/psutil/cpu/cpu-total/steal stolen time, which is the time spent in other operating systems when running in a virtualized environment accumulated over all cpus
/intel/psutil/cpu/cpu-total/stolen
/intel/psutil/cpu/cpu-total/system time spent in system mode accumulated over all cpus
/intel/psutil/cpu/cpu-total/user time spent in user mode accumulated over all cpus
/intel/psutil/cpu/[CPU]/guest time spent in guest mode
/intel/psutil/cpu/[CPU]/guest_nice time spent running a niced guest (virtual CPU for guest operating systems under the control of the Linux kernel)
/intel/psutil/cpu/[CPU]/idle time spent in the idle task. This value should be USER_HZ times the second entry in the /proc/uptime pseudo-file
/intel/psutil/cpu/[CPU]/iowait time waiting for I/O to complete
/intel/psutil/cpu/[CPU]/irq time servicing interrupts
/intel/psutil/cpu/[CPU]/nice time spent in user mode with low priority (nice)
/intel/psutil/cpu/[CPU]/softirq time spent servicing softirqs
/intel/psutil/cpu/[CPU]/steal stolen time, which is the time spent in other operating systems when running in a virtualized environment
/intel/psutil/cpu/[CPU]/stolen
/intel/psutil/cpu/[CPU]/system time spent in system mode
/intel/psutil/cpu/[CPU]/user time spent in user mode
/intel/psutil/disk/[mount_point]/total total space which is available to root in mount point
/intel/psutil/disk/[mount_point]/used total space being used in general in mount point
/intel/psutil/disk/[mount_point]/free remaining free space usable by user mount point
/intel/psutil/disk/[mount_point]/percent user usage percent compared to the total amount of space the user can use in mount point
/intel/psutil/load/load1 load average over the last 1 minute
/intel/psutil/load/load15 load average over the last 15 minutes
/intel/psutil/load/load5 load average over the last 5 minutes
/intel/psutil/net/all/bytes_recv number of bytes sent
/intel/psutil/net/all/bytes_sent number of bytes received
/intel/psutil/net/all/dropin total number of incoming packets which were dropped
/intel/psutil/net/all/dropout total number of outgoing packets which were dropped (always 0 on OSX and BSD)
/intel/psutil/net/all/errin total number of errors while receiving
/intel/psutil/net/all/errout total number of errors while sending
/intel/psutil/net/all/packets_recv number of packets received
/intel/psutil/net/all/packets_sent number of packets sent
/intel/psutil/net/[INTERFACE]/bytes_recv number of bytes sent on given interface
/intel/psutil/net/[INTERFACE]/bytes_sent number of bytes received on given interface
/intel/psutil/net/[INTERFACE]/dropin total number of incoming packets which were dropped on given interface
/intel/psutil/net/[INTERFACE]/dropout total number of outgoing packets which were dropped (always 0 on OSX and BSD) o given interface
/intel/psutil/net/[INTERFACE]/errin total number of errors while receiving on given interface
/intel/psutil/net/[INTERFACE]/errout total number of errors while sending on given interface
/intel/psutil/net/[INTERFACE]/packets_recv number of packets received on given interface
/intel/psutil/net/[INTERFACE]/packets_sent number of packets sent on given interface
/intel/psutil/vm/active memory currently in use or very recently used, and so it is in RAM
/intel/psutil/vm/available the actual amount of available memory that can be given instantly to processes that request more memory in bytes; this is calculated by summing different memory values depending on the platform (e.g. free + buffers + cached on Linux) and it is supposed to be used to monitor actual memory usage in a cross platform fashion
/intel/psutil/vm/buffers cache for things like file system metadata
/intel/psutil/vm/cached cache for various things
/intel/psutil/vm/free memory not being used at all (zeroed) that is readily available; note that this doesn't reflect the actual memory available (use 'available' instead).
/intel/psutil/vm/inactive memory that is marked as not used
/intel/psutil/vm/total total physical memory available
/intel/psutil/vm/used memory used, calculated differently depending on the platform and designed for informational purposes only.
/intel/psutil/vm/used_percent percent memory used
/intel/psutil/vm/wired memory that is marked to always stay in RAM. It is never moved to disk

*Please note that there is no possibility to request specific instance of dynamic disk metric passing it via requested metric in task manifest. I collect metrics based on configured mount points All collected network counters contains information about the hardware address (tag -> hardware_address) and the MTU (tag -> mtu).

Examples

This is an example running psutil and writing data to a file. It is assumed that you are using the latest Snap binary and plugins.

The example is run from a directory which includes snaptel, snapteld, along with the plugins and task file.

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 psutil plugin

$ snaptel plugin load snap-plugin-collector-psutil

See available metrics for your system

$ snaptel metric list

Create a task manifest file (e.g. task-psutil.json):

{
    "version": 1,
    "schedule": {
        "type": "simple",
        "interval": "1s"
    },
    "workflow": {
        "collect": {
            "metrics": {
                "/intel/psutil/load/load1": {},
                "/intel/psutil/load/load5": {},
                "/intel/psutil/load/load15": {},
                "/intel/psutil/cpu/*/user": {},
                "/intel/psutil/net/*/bytes_sent": {},
                "/intel/psutil/vm/available": {},
                "/intel/psutil/vm/free": {},
                "/intel/psutil/vm/used": {}
            },
            "config": {
                "/intel/mock": {
                    "password": "secret",
                    "user": "root"
                }
            },
            "publish": [
                {                         
                    "plugin_name": "file",
                    "config": {
                        "file": "/tmp/published_psutil"
                    }
                }
            ]
        }
    }
}

Load file plugin for publishing:

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

Create task:

$ snaptel task create -t task-psutil.json
Using task manifest to create task
Task created
ID: 02dd7ff4-8106-47e9-8b86-70067cd0a850
Name: Task-02dd7ff4-8106-47e9-8b86-70067cd0a850
State: Running

See file output (this is just part of the file):

2015-11-20 11:46:03.637390565 -0800 PST|[intel psutil load load1]|1.82|username-mac01.jf.intel.com
2015-11-20 11:46:03.641160359 -0800 PST|[intel psutil load load15]|2.09|username-mac01.jf.intel.com
2015-11-20 11:46:03.643858208 -0800 PST|[intel psutil load load5]|2.08|username-mac01.jf.intel.com
2015-11-20 11:46:03.661173851 -0800 PST|[intel psutil vm available]|168882176|username-mac01.jf.intel.com
2015-11-20 11:46:03.67167664 -0800 PST|[intel psutil vm free]|168943616|username-mac01.jf.intel.com
2015-11-20 11:46:03.681965105 -0800 PST|[intel psutil vm used]|17010798592|username-mac01.jf.intel.com
2015-11-20 11:46:04.641244629 -0800 PST|[intel psutil load load1]|1.82|username-mac01.jf.intel.com
2015-11-20 11:46:04.644420189 -0800 PST|[intel psutil load load15]|2.09|username-mac01.jf.intel.com
2015-11-20 11:46:04.647166418 -0800 PST|[intel psutil load load5]|2.08|username-mac01.jf.intel.com
2015-11-20 11:46:04.657065347 -0800 PST|[intel psutil vm available]|168984576|username-mac01.jf.intel.com
2015-11-20 11:46:04.666346721 -0800 PST|[intel psutil vm free]|169054208|username-mac01.jf.intel.com
2015-11-20 11:46:04.676683476 -0800 PST|[intel psutil vm used]|17010716672|username-mac01.jf.intel.com

Stop task:

$ snaptel task stop 02dd7ff4-8106-47e9-8b86-70067cd0a850
Task stopped:
ID: 02dd7ff4-8106-47e9-8b86-70067cd0a850

Roadmap

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.

Community Support

This repository is one of many plugins in Snap, a powerful telemetry framework. See the full project at http://github.com/intelsdi-x/snap To reach out to other users, head to the main framework

Contributing

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.

License

Snap, along with this plugin, is an Open Source software released under the Apache 2.0 License.

Acknowledgements

And thank you! Your contribution, through code and participation, is incredibly important to us.