Skip to main content

Mariano Guerra's Log

This is my blog, more about me at marianoguerra.github.io

🦋 @marianoguerra.org 🐘 @marianoguerra@hachyderm.io 🐦 @warianoguerra

sistats - collect system stats and send them somewhere else

https://raw.github.com/marianoguerra/sistats/master/sistats.jpg

why?

I need to collect system stats and put it over thereTM

I wanted to start extracting the stats collection from glances but the code was full of try/except and kind of unpythonic so I decided to start from scratchTM

what?

a library (sistats) that gives you system stats and allows to calculate the variation between two reads and some modules that allow to periodically check for stats and put it over there (mqtt and REST for now)

an example of the sistats module:

import time
from sistats import *

cpu  = get_cpu_stats()
mem  = get_mem_stats()
net  = get_net_stats()
disk = get_disk_stats()
fst  = get_fs_stats()

platinfo = get_platform_info()

pretty_print("Platform", platinfo)
pretty_print("CPU", cpu)
pretty_print("Memory", mem)
pretty_print("Net", net)
pretty_print("Disk", disk)
pretty_print("File System", fst)

while True:
    time.sleep(5)

    new_cpu  = get_cpu_stats()
    new_mem  = get_mem_stats()
    new_net  = get_net_stats()
    new_disk = get_disk_stats()
    new_fst  = get_fs_stats()

    cpu_diff  = get_cpu_stats_delta(cpu, new_cpu)
    mem_diff  = get_mem_stats_delta(mem, new_mem)
    net_diff  = get_net_stats_delta(net, new_net)
    disk_diff = get_disk_stats_delta(disk, new_disk)
    fst_diff  = get_fs_stats_delta(fst, new_fst)

    pretty_print("CPU diff", cpu_diff)
    pretty_print("Memory diff", mem_diff)
    pretty_print("Net diff", net_diff)
    pretty_print("Disk diff", disk_diff)
    pretty_print("File System diff", fst_diff)

    cpu  = new_cpu
    mem  = new_mem
    net  = new_net
    disk = new_disk
    fst  = new_fst

who?

marianoguerra

how?

to use it you have to decide where are you sending it, you can send it to the console using the dummy sample ConsoleChecker (in transport.py), to try it:

python transport.py

you can send it to mosquitto:

# python mqtt_transport.py -c <client id here>
# check python mqtt_transport.py -h for options
python mqtt_transport.py -c ganesha

you can listen to those events using mqtt_listener:

# python mqtt_listener.py <client id here>
# for example
python mqtt_listener.py ganesha

to use mosquitto you should have it running on your system, it sends the payload as BSON

you can send it to a REST API:

# check python rest_transport.py -h for options
python rest_transport.py -c ganesha -u god -p secret -v

you can implement any other transport just subclassing transport.Checker and implementing the missing methods.

how to run on windows?

license?

LGPL v3 + optional beer for the author