2、浏览器访问注释：或许是memcached没有任何数据吧！
可是朋友的博客是这样的
[root@lnmp ~]# telnet 127.0.0.1 11211
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
stats
STAT pid 63992
STAT uptime 6204
STAT time 1412164192
STAT version 1.4.17
STAT libevent 2.0.21-stable
STAT pointer_size 64
STAT rusage_user 0.225965
STAT rusage_system 0.309952
STAT curr_connections 10
STAT total_connections 243
STAT connection_structures 12
STAT reserved_fds 20
STAT cmd_get 108
STAT cmd_set 43
STAT cmd_flush 0
STAT cmd_touch 0
STAT get_hits 68
STAT get_misses 40
STAT delete_misses 0
STAT delete_hits 0
STAT incr_misses 0
STAT incr_hits 0
STAT decr_misses 0
STAT decr_hits 0
STAT cas_misses 0
STAT cas_hits 0
STAT cas_badval 0
STAT touch_hits 0
STAT touch_misses 0
STAT auth_cmds 0
STAT auth_errors 0
STAT bytes_read 7326
STAT bytes_written 125489
STAT limit_maxbytes 67108864
STAT accepting_conns 1
STAT listen_disabled_num 0
STAT threads 4
STAT conn_yields 0
STAT hash_power_level 16
STAT hash_bytes 524288
STAT hash_is_expanding 0
STAT malloc_fails 0
STAT bytes 205
STAT curr_items 2
STAT total_items 43
STAT expired_unfetched 0
STAT evicted_unfetched 0
STAT evictions 0
STAT reclaimed 0
END或者利用nagios的check_tcp来监测，如下[root@NagiosServer libexec]# ./check_tcp -H 192.168.0.12 -p 11211 -t 5 -E -s 'stats\r\nquit\r\n' -e 'uptime' -M crit
TCP OK - 0.001 second response time on 192.168.0.12 port 11211 [STAT pid 63992
STAT uptime 6295
STAT time 1412164283
STAT version 1.4.17
STAT libevent 2.0.21-stable
STAT pointer_size 64
STAT rusage_user 0.225965
STAT rusage_system 0.317951
STAT curr_connections 11
STAT total_connections 249
STAT connection_structures 12
STAT reserved_fds 20
STAT cmd_get 108
STAT cmd_set 43
STAT cmd_flush 0
STAT cmd_touch 0
STAT get_hits 68
STAT get_misses 40
STAT delete_misses 0
STAT delete_hits 0
STAT incr_misses 0
STAT incr_hits 0
STAT decr_misses 0
STAT decr_hits 0
STAT cas_misses 0
STAT cas_hits 0
STAT cas_badval 0
STAT touch_hits 0
STAT touch_misses 0
STAT auth_cmds 0
STAT auth_errors 0
STAT bytes_read 7374
STAT bytes_written 131873
STAT limit_maxbytes 67108864
STAT accepting_conns 1
STAT listen_disabled_num 0
STAT threads 4
STAT conn_yields 0
STAT hash_power_level 16
STAT hash_bytes 524288
STAT hash_is_expanding 0
STAT malloc_fails 0
STAT bytes 205
STAT curr_items 2
STAT total_items 43
STAT expired_unfetched 0
STAT evicted_unfetched 0
S]|time=0.001293s;;;0.000000;5.000000[root@NagiosServer ~]# yum -y install perl*
或者
[root@NagiosServer ~]# yum install perl-Carp-Clan perl-Cache-Memcached perl-Nagios-Plugin
[root@NagiosServer ~]# tar xf Nagios-Plugins-Memcached-0.02.tar.gz
[root@NagiosServer Nagios-Plugins-Memcached-0.02]# cd Nagios-Plugins-Memcached-0.02
[root@NagiosServer ~]# perl Makefile.PL
[root@NagiosServer ~]# make && make install做适应的修改#默认check_memcached的安装路径
[root@NagiosServer ~]# find / -name check_memcached
/usr/local/bin/check_memcached
#对其进行适应的修改
[root@NagiosServer ~]# cp /usr/local/bin/check_memcached /usr/local/nagios/libexec/[root@NagiosServer objects]# vim commands.cfg
#定义Memcached的内存使用比例
define command {
command_name check_memcached_11211
command_line $USER1$/check_memcached -H 192.168.0.12:11211 --size-warning 80 --size-critical 90
}
#定义Memcached是否有应答
define command {
command_name memcached_response_11211
command_line $USER1$/check_memcached -H 192.168.0.12 -w 300 -c 500
}
#定义Memcached的命中率
define command {
command_name check_memcached_hit
command_line $USER1$/check_memcached -H 192.168.0.12 --hit-warning 10 --size-critical 5
}2、定义服务和主机define host{
use linux-server
host_name Linux Server 02
alias My Linux 02
address 192.168.0.12
}
#define hostgroup{
# hostgroup_name admins
# alias Nagios Administrators
# members Linux Server 02
# }
define service{
use generic-service
host_name Linux Server 02
service_description PING
check_command check_ping!100.0,20%!500.0,60%
}
define service{
use generic-service
host_name Linux Server 02
service_description Root Partition
check_command check_local_disk!20%!10%!/
}
define service{
use generic-service
host_name Linux Server 02
service_description Current Users
check_command check_local_users!20!50
}
define service{
use generic-service
host_name Linux Server 02
service_description Total Processes
check_command check_local_procs!250!400!RSZDT
}
define service{
use generic-service
host_name Linux Server 02
service_description Current Load
check_command check_local_load!5.0,4.0,3.0!10.0,6.0,4.0
}
define service{
use generic-service
host_name Linux Server 02
service_description Swap Usage
check_command check_local_swap!20!10
}
define service{
use generic-service
host_name Linux Server 02
service_description SSH
check_command check_ssh
notifications_enabled 0
}
define service{
use generic-service
host_name Linux Server 02
service_description HTTP
check_command check_http
notifications_enabled 0
}
define service{
use generic-service
host_name Linux Server 02
service_description users
check_command check_nrpe!check_users
}
define service{
use generic-service
host_name Linux Server 02
service_description load
check_command check_nrpe!check_load
}
define service{
use generic-service
host_name Linux Server 02
service_description disk sda1
check_command check_nrpe!check_sda1
}
define service{
use generic-service
host_name Linux Server 02
service_description zombie_proces
check_command check_nrpe!check_zombie_procs
}
define service{
use generic-service
host_name Linux Server 02
service_description Total_proces
check_command check_nrpe!check_total_procs
}
define service{
use generic-service
host_name Linux Server 02
service_description Memcached Reponse
check_command check_memcached_11211
}
define service{
use generic-service
host_name Linux Server 02
service_description Memcached Size
check_command memcached_response_11211
}
define service{
use generic-service
host_name Linux Server 02
service_description Memcached Hit
check_command check_memcached_hit
}3、启用定义的主机配置文件[root@NagiosServer etc]# vim nagios.cfg
cfg_file=/usr/local/nagios/etc/objects/hosts/linux02.cfg4、重新启动nagios服务[root@NagiosServer ~]# service nagios restart
Running configuration check...
Stopping nagios: done.
Starting nagios: done.五、查看页面监控结果
暂且就先到这里吧！更多的会在下一篇博文中写到[root@NagiosServer libexec]# cat check_nginx.sh
#!/bin/bash
PROGNAME=`basename $0`
VERSION="Version 1.0"
AUTHOR="2010.11.18-www.nginxs.com"
ST_OK=0
ST_WR=1
ST_CR=2
ST_UK=3
print_version() {
echo "$VERSION $AUTHOR"
}
print_help() {
print_version $PROGNAME $VERSION
echo "$PROGNAME is a Nagios plugin to monitor nginx status"
echo "Use of wget nginxstatus page"
echo "When using optional warning/critical thresholds all values except"
echo "Usage parameters:"
echo ""
echo "$PROGNAME [-u|--url] [-p|--path] [-w/--warning] [-c/--critical]"
echo ""
echo "Options:"
echo " --url|-u)"
echo " Sets nginx status url"
echo ""
echo " --path|-p)"
echo " Sets nginx status url path"
echo ""
echo " --warning|-w)"
echo " Sets a warning level for nginx Active connections. Default is: off"
echo ""
echo " --critical|-c)"
echo " Sets a critical level for nginx Active connections. Default is: off"
echo ""
echo "Example:"
echo "http://www.nginxs.com/status"
echo "./check_nginx.sh -u www.nginxs.com -p /status -w 10000 -c 15000"
exit $ST_UK
}
while test -n "$1";do
case "$1" in
--help|-h)
print_help
exit $ST_UK
;;
--url|-u)
url=$2
shift
;;
--path|-p)
path=$2
shift
;;
--warning|-w)
warn=$2
shift
;;
--critical|-c)
crit=$2
shift
;;
*)
echo "Unknown argument: $1"
print_help
exit $ST_UK
;;
esac
shift
done
if [ -z $url ];then
echo "Must Sets --url|-u) Parameters"
exit $ST_UK
elif [ -z $path ];then
echo "Must sets --path|-p) Parameters"
echo "Please look help"
echo "$PROGNAME --help"
exit $ST_UK
fi
if [ -n "$warn" -a -n "$crit" ];then
if [ $warn -ge $crit ];then
echo "Please adjust your warning/critical thresholds. The warning must be lower than the critical level!"
exit $ST_UK
fi
fi
do_status() {
wget -qNO /tmp/nginx.html ${url}${path}
ActiveConn=`awk -F: {'print $2'} /tmp/nginx.html |head -1`
serveraccepts=`awk {'print $1'} /tmp/nginx.html |tail -n 2|head -1`
handled=`awk {'print $2'} /tmp/nginx.html |tail -n 2|head -1`
requests=`awk {'print $3'} /tmp/nginx.html |tail -n 2|head -1`
reading=`tail -n 1 /tmp/nginx.html|awk {'print $2'}`
writing=`tail -n 1 /tmp/nginx.html|awk {'print $4'}`
waiting=`tail -n 1 /tmp/nginx.html|awk {'print $6'}`
}
do_output() {
output="ActiveConn:${ActiveConn},serveraccepts:${serveraccepts},handled:${handled},requests:${requests},reading:${reading},writing:${writing},waiting:${waiting}"
}
do_perfdata() {
perfdata="'ActiveConn'=${ActiveConn},'serveraccepts'=${serveraccepts},'handled'=${handled},'requests'=${requests},'reading'=${reading},'writing'=${writing},'waiting'=${waiting}"
}
do_status
do_output
do_perfdata
if [ -n "warn" -a -n "$crit" ];then
if [ $ActiveConn -ge $warn -a $ActiveConn -lt $crit ];then
echo "WARNING - $output |$perfdata"
exit $ST_WR
elif [ $ActiveConn -ge $crit ];then
echo "CRITICAL - $output|$perfdata"
exit $ST_CR
else
echo "OK - $output|$perfdata"
exit $ST_OK
fi
else
echo "OK - $output|$perfdata"
exit $ST_OK
fi[root@NagiosServer libexec]# ./check_nginx.sh -h
Version 1.0 2010.11.18-www.nginxs.com
check_nginx.sh is a Nagios plugin to monitor nginx status
Use of wget nginxstatus page
When using optional warning/critical thresholds all values except
Usage parameters:
check_nginx.sh [-u|--url] [-p|--path] [-w/--warning] [-c/--critical]
Options:
--url|-u)
Sets nginx status url
--path|-p)
Sets nginx status url path
--warning|-w)
Sets a warning level for nginx Active connections. Default is: off
--critical|-c)
Sets a critical level for nginx Active connections. Default is: off
Example:
http://www.nginxs.com/status
./check_nginx.sh -u www.nginxs.com -p /status -w 10000 -c 15000[root@NagiosServer libexec]# ./check_nginx.sh -u 192.168.0.12 -p /nginx_status -w 10000 -c 15000
OK - ActiveConn: 1 ,serveraccepts:47,handled:47,requests:47,reading:0,writing:1,waiting:0|'ActiveConn'= 1 ,'serveraccepts'=47,'handled'=47,'requests'=47,'reading'=0,'writing'=1,'waiting'=0[root@NagiosServer libexec]# vim ../etc/objects/commands.cfg
define command {
command_name check_nginx
command_line $USER1$/check_nginx.sh -u 192.168.0.12 -p /nginx_status -w 10000 -c 15000
}
[root@NagiosServer libexec]# vim ../etc/objects/hosts/linux02.cfg
define service{
use generic-service
host_name Linux Server 02
service_description Nginx Status
check_command check_nginx
}查看监控页面
然后看ab压力测试页面，看监控是否有变化[root@NagiosServer libexec]# ab -c 1000 -n 1000 http://192.168.0.12/index.php
This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking 192.168.0.12 (be patient)
Completed 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Completed 600 requests
Completed 700 requests
Completed 800 requests
Completed 900 requests
Completed 1000 requests
Finished 1000 requests
Server Software: nginx/1.4.7
Server Hostname: 192.168.0.12
Server Port: 80
Document Path: /index.php
Document Length: 192 bytes
Concurrency Level: 1000
Time taken for tests: 1.579 seconds
Complete requests: 1000
Failed requests: 142
(Connect: 0, Receive: 0, Length: 142, Exceptions: 0)
Write errors: 0
Non-2xx responses: 858
Total transferred: 7851142 bytes
HTML transferred: 7692130 bytes
Requests per second: 633.33 [#/sec] (mean)
Time per request: 1578.963 [ms] (mean)
Time per request: 1.579 [ms] (mean, across all concurrent requests)
Transfer rate: 4855.80 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 122 135 10.4 135 163
Processing: 120 253 149.8 218 1294
Waiting: 107 250 147.8 218 1292
Total: 265 388 144.8 351 1416
Percentage of the requests served within a certain time (ms)
50% 351
66% 377
75% 390
80% 402
90% 624
95% 754
98% 822
99% 842
100% 1416 (longest request)
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