nagios插件pnp安装

tangbinde

　　1、安装rrdtool
　　# tar zxvf rrdtool-1.4.5.tar.gz && cd rrdtool-1.4.5 && ./configure --prefix=/usr/local/rrdtool && make && make install
　　2、安装pnp
　　tar zxvf pnp-0.4.13.tar.gz && cd pnp-0.4.13 && ./configure --with-nagios-user=nagios  --with-nagios-group=nagios  --with-rrdtool=/usr/local/rrdtool/bin/rrdtool --with-perfdata-dir=/usr/local/nagios/share/perfdata && make all && make install && make install-config && make install-init
安装完成，PNP默认文件放置情况如下：
General Options:
-----------------------------       -------------------
  Nagios user/group:                nagios nagios
  Install directory:                /usr/local/nagios
  HTML Dir:                         /usr/local/nagios/share/pnp
  Config Dir:                       /usr/local/nagios/etc/pnp
  Path to rrdtool:                  /usr/local/bin/rrdtool (Version 1.4.5)
  RRDs Perl Modules:                *** NOT FOUND ***
  RRD Files stored in:              /usr/local/nagios/share/perfdata
  process_perfdata.pl Logfile:      /usr/local/nagios/var/perfdata.log
  Perfdata files (NPCD) stored in:  /usr/local/nagios/var/spool/perfdata/

ps:RRDs Perl Modules:                *** NOT FOUND ***
在这里我遇到一个很奇怪的问题，由于没有安装rrds perl模块，导致pnp出图的数据是乱码，附上图片：

后来通过yum install rrdtool-perl就恢复正常了，有图有真相

3、配置PNP，创建默认配置文件
# cd /usr/local/nagios/etc/pnp/
# cp process_perfdata.cfg-sample process_perfdata.cfg
# cp npcd.cfg-sample npcd.cfg
# cp rra.cfg-sample rra.cfg
# chown -R nagios:nagios /usr/local/nagios/etc/pnp
修改process_perfdata.cfg文件
vim /usr/local/nagios/etc/pnp/process_perfdata.cfg
LOG_FILE = /usr/local/nagios/var/perfdata.log
#
# Loglevel 0=silent 1=normal 2=debug
#
LOG_LEVEL = 2
这里将日志级别改为2，即debug模式。
4、修改Nagios配置文件
1、增加小太阳图标
修改templates.cfg，增加一个定义PNP的host和service。修改后的内容如下：
define host {
  name       host-pnp
  register   0
#action_url /nagios/index.php/graph?host=$HOSTNAME$&srv=_HOST_' class='tips' rel='/nagios/index.php/popup?host=$HOSTNAME$&srv=_HOST_
action_url /nagios/pnp/index.php?host=$HOSTNAME$
process_perf_data 1
}
ps：我这里只添加了主机的小太阳图标，每当添加某主机的服务的时候，都会自动生成该服务的数据文件

　　2、修改commands.cfg，定义host-perfdata
　　define command{
　　command_name  process-host-perfdata
　　command_line  /usr/local/nagios/libexec/process_perfdata.pl
　　}
　　3、让主机引用host-perfdata
　　root># cat hosts.cfg
　　define host{
　　use     host-pnp
　　host_name               xx
　　alias                    xx(x)
　　address                  xx
　　contact_groups            shyygroup
　　check_command           check-host-alive
　　max_check_attempts       5
　　notification_interval       10
　　notification_period        24x7
　　notification_options       d,u,r
　　}
　　4、重启nagios服务后，在这个目录下会产生2个主机的目录
　　ls /usr/local/nagios/share/perfdata/
　　xxjshyy  xxysix
　　cd xxjshyy
　　-rw-rw-r-- 1 nagios nagioscmd 1151496 Dec 21 16:13 Current_Load.rrd
　　-rw-rw-r-- 1 nagios nagioscmd   12165 Dec 21 16:13 Current_Load.xml
　　-rw-rw-r-- 1 nagios nagioscmd  384952 Dec 21 16:11 Java_9800.rrd
　　-rw-rw-r-- 1 nagios nagioscmd   11208 Dec 21 16:11 Java_9800.xml
　　-rw-rw-r-- 1 nagios nagioscmd  384952 Dec 21 16:12 Java_9801.rrd
　　-rw-rw-r-- 1 nagios nagioscmd   11208 Dec 21 16:12 Java_9801.xml
　　-rw-rw-r-- 1 nagios nagioscmd  384952 Dec 18 17:35 mysql_3306.rrd
　　-rw-rw-r-- 1 nagios nagioscmd  384952 Dec 21 16:11 Mysql_3306.rrd
　　-rw-rw-r-- 1 nagios nagioscmd   11199 Dec 18 17:35 mysql_3306.xml
　　-rw-rw-r-- 1 nagios nagioscmd   11202 Dec 21 16:11 Mysql_3306.xml
　　-rw-rw-r-- 1 nagios nagioscmd  384952 Dec 21 16:12 Nrpe_5666.rrd
　　-rw-rw-r-- 1 nagios nagioscmd   11198 Dec 21 16:12 Nrpe_5666.xml
　　-rw-rw-r-- 1 nagios nagioscmd  768224 Dec 21 16:14 Ping.rrd
　　-rw-rw-r-- 1 nagios nagioscmd   11702 Dec 21 16:14 Ping.xml
　　-rw-rw-r-- 1 nagios nagioscmd  384952 Dec 21 16:14 sda3.rrd
　　-rw-rw-r-- 1 nagios nagioscmd   11170 Dec 21 16:14 sda3.xml
　　-rw-rw-r-- 1 nagios nagioscmd 1534768 Dec 21 16:13 traffic.rrd
　　-rw-rw-r-- 1 nagios nagioscmd   12701 Dec 21 16:13 traffic.xml
　　-rw-rw-r-- 1 nagios nagioscmd  384952 Dec 21 16:12 Users.rrd
　　-rw-rw-r-- 1 nagios nagioscmd   11120 Dec 21 16:12 Users.xml
　　ps:点击小太阳也能会报以下这种错误：
Deprecated: Assigning the return value of new by reference is deprecated in /usr/local/nagios/share/pnp/include/function.inc.php on line 1026

Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Asia/Chongqing' for 'CST/8.0/no DST' instead in /usr/local/nagios/share/pnp/include/function.inc.php on line 557

Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Asia/Chongqing' for 'CST/8.0/no DST' instead in /usr/local/nagios/share/pnp/include/function.inc.php on line 559

Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Asia/Chongqing' for 'CST/8.0/no DST' instead in /usr/local/nagios/share/pnp/include/function.inc.php on line 563

Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Asia/Chongqing' for 'CST/8.0/no DST' instead in /usr/local/nagios/share/pnp/include/function.inc.php on line 565

Deprecated: Function eregi() is deprecated in /usr/local/nagios/share/pnp/include/function.inc.php on line 1502
　　解决：
这是因为pnp-0.4.14对PHP 5.3.0的支持还不是很好，其中有几个bug需要修改：
根据错误提示打开
vi /usr/local/nagios/share/pnp/include/function.inc.php
找到行1541修改为
if($level == 2 && $type == "complete" && preg_match("/^NAGIOS_/",$tag)){
还会有两处错误需要修改，根据提示找到对应行进行修改：
line 556: 添加：date_default_timezone_set('UTC');
line 1032：修改为$pdf = new PDF('P', 'mm', 'A4'); 删除&
再重新重启nagios，应该就能看到图表了