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 """
-H  127.0.0.1
-p  6379
-C  [memuse|fork]
-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[1:],"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()

本文出自 “扫榻人” 博客，请务必保留此出处http://enable.blog.51cto.com/747951/1180708