每天进步一点点——Ganglia的Python扩展模块开发

转载请说明出处：http://blog.csdn.net/cywosp/article/details/39701245

                   

     

       

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import random
import time
descriptors = list()
def random_number_1(name):
    return int(random.uniform(5, 100)) + 10
def random_number_2(name):
    return int(random.randrange(50, 500))
def metric_init(params):
    global descriptors
    random.seed()
    print params
    d1 = {
        'name': 'random_number_1',
        'call_back': random_number_1,
        'time_max': 90,
        'value_type': 'uint',
        'units': 'C',
        'slope': 'both',
        'format': '%u',
        'description': 'Random a number',
        'groups': 'example random'
    }
    d2 = {
        'name': 'random_number_2',
        'call_back': random_number_2,
        'time_max': 90,
        'value_type': 'uint',
        'units': 'C',
        'slope': 'both',
        'format': '%u',
        'description': 'Random a number',
        'groups': 'example random'
    }
    descriptors = [d1, d2]
    return descriptors
def metric_cleanup():
    pass

#This code is for debugging and unit testing
if __name__ == '__main__':
    metric_init({})
    while True:
        for d in descriptors:
            v = d['call_back'](d['name'])
            print ('value for %s is '+d['format']) % (d['name'], v)
        time.sleep(5)

modules {

  module {

    #这里的name值一定要与/usr/lib64/ganglia/python_modules/random_number.py的文件名保持一致，否则将无法正确运行

    name = "random_number"

    language = "python"

  }

}

collection_group {

  collect_every = 2

  time_threshold = 90

  metric {

    #这里的name值要与random_number.py中的d1里的name保持一致

    name = "random_number_1"

    title = "random number 1"

    value_threshold = 0

  }

  metric {

    #这里的name值要与random_number.py中的d2里的name保持一致

    name = "random_number_2"

    title = "random number 2"

    value_threshold = 0

  }

}

service gmond restart

service gmetad restart

service httpd restart

      

     

每天进步一点点——Ganglia的Python扩展模块开发

原文：http://blog.csdn.net/cywosp/article/details/39701245