nagios --redis 监控脚本
目前脚本可以监控 redis内存使用率，fork时间脚本使用方法：
监控内存使用率
./check_redis.py -H 192.168.1.100 -p 6379 -C memuse -w 80 -c 90
监控上次fork消耗时间（通常redis在进行fork时，redis服务的响应会有影响）
./check_redis.py -H 192.168.1.100 -p 6379 -C fork -w 3 -c 5
cat check_redis.py
[*]#!/bin/env python
[*]#-*-encoding=utf8-*-
[*]__author__ = 'songtao'
[*]
[*]
[*]
[*]import redis
[*]import sys
[*]import getopt
[*]
[*]
[*]def usage():
[*] print """
[*] -H127.0.0.1
[*] -p6379
[*] -C
[*] -w 50
[*] -c 80
[*] ./check_redis.py -H 127.0.0.1 -p 6379 -C memuse -c 80 -w 90
[*] """
[*] sys.exit(3)
[*]#def conn_redis(host,port):
[*]# r = redis.Redis(hosthost=host,portport=port)
[*]# if r.ping():
[*]# r = redis.Redis(hosthost=host,portport=port)
[*]# return r
[*]# else:
[*]# print "can not connect!!"
[*]# sys.exit(0)
[*]#r = redis.Redis(hosthost=host,portport=port)
[*]
[*]warning = 80
[*]critical = 90
[*]
[*]
[*]def memused():
[*] maxmem = r.config_get()['maxmemory']
[*] usedmem = r.info()['used_memory']
[*] result = float(usedmem) / float(maxmem) * 100
[*] if result >=warning and result < critical:
[*] print "Warning!;mem_used:%.2f%%|mem_used:%.2f%%" % (result,result)
[*] sys.exit(1)
[*] elif result > critical:
[*] print "Critical!;mem_used:%.2f%%|mem_used:%.2f%%" % (result,result)
[*] sys.exit(2)
[*] else:
[*] print "OK!;mem_used:%.2f%%|mem_used:%.2f%%" % (result,result)
[*] sys.exit(0)
[*]
[*]
[*]def redis_fork():
[*] fork_used = r.info()['latest_fork_usec'] / 1000
[*] result = float(fork_used) / 1000
[*] if result >=warning and result < critical:
[*] print "Warning!;latest_fork:%.2f%%|latest_fork:%.2f%%" % (result,result)
[*] sys.exit(1)
[*] elif result > critical:
[*] print "Critical!;latest_fork:%.2f%%|latest_fork:%.2f%%" % (result,result)
[*] sys.exit(2)
[*] else:
[*] print "OK!;latest_fork:%.2f%%|latest_fork:%.2f%%" % (result,result)
[*] sys.exit(0)
[*]
[*]
[*]if "__main__" == __name__:
[*] try:
[*] opts,args = getopt.getopt(sys.argv,"h:H:p:C:w:c:")
[*] for opt,arg in opts:
[*] if opt in ("-h","--help"):
[*] usage()
[*] if opt in ("-H","--host"):
[*] host = arg
[*] if opt in ("-p","--port"):
[*] port = int(arg)
[*] if opt in ("-C","--command"):
[*] cmd = arg
[*] if opt in ("-w","--warning"):
[*] warning = float(arg)
[*] if opt in ("-c","--critical"):
[*] critical = float(arg)
[*] except:
[*] print "please check the host or opts"
[*] usage()
[*] sys.exit(3)
[*]
[*]# print opts
[*]# print args
[*]# print "host is %s ,port is %s,cmd is %s,warning is %s,critical is %s" % (host,port,cmd,warning,critical)
[*] try:
[*] r = redis.Redis(hosthost=host,portport=port)
[*] r.ping()
[*] except:
[*] print "redis can not connected or command is error"
[*] usage()
[*] sys.exit(3)
[*] if cmd == "memuse":
[*] memused()
[*] if cmd == "fork":
[*] redis_fork()
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