Linux监控 cacti nagios整合
最新cacti安装环境要求:
yum install -y httpd mysql php gd gd-devel gcc
yum -y install net-snmp-*
下载cacti以对应的patch plugin
http://cactiusers.org/ http://cacti.net
mkdir -p /root/monitor
wget http://www.cacti.net/downloads/cacti-0.8.7e.tar.gz
wget http://mirror.cactiusers.org/downloads/plugins/cacti-plugin-0.8.7e-PA-v2.6.zip
下载三方源 (主要为了安装rrdtool)
http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.1-1.el5.rf.i386.rpm 32位 (centos5.0)
http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.1-1.el5.rf.x86_64.rpm 64位(centos 5.0)
rpm -Uvh rpmforge-release/rpmforge-release-0.5.1-1.el5.rf.x86_64.rpm
yum -y install rrdtool
cd /root/monitor
tar xzvf cacti-0.8.7e.tar.gz
mv cacti-0.8.7e /var/www/html/cacti
mysql -u root -p
mysql>create database cacti; 创建一个数据库供 cacti 使用
mysql>use cacti;
Mysql>source /var/www/html/cacti/cacti.sql; 导入 mysql 数据库
Mysql>grant all privileges on cacti.* to cacti@localhost> Mysql>flush privileges;
vim /var/www/html/cacti/include/config.php
修改数据库配置信息
然后在IE中输: http://xxx.xxx.xxx.xxx/cacti
在出来的安装界面
http://www.selfcai.com.cn/wp-content/uploads/2010/03/003.jpeg
http://www.selfcai.com.cn/wp-content/uploads/2010/03/cacti-install-3.jpeg
完成后安装后.初始的用户名和密码是: admin :admin
接下来.我们安装plug
cd /root/monitor
unzip cacti-plugin-0.8.7e-PA-v2.6.zip
cp -R cacti-plugin-arch/* /var/www/html/cacti/
mysql -u root -p cacti patch -p1 -N < cacti-plugin-0.8.7e-PA-v2.6.diff
这样做完后,可能会图象不对(前提,你设置的url是http://xxx/cacti),那么需要修改如下的内容.
vim include/global.php
$config['url_path'] = ‘/cacti/’;
进入”用户管理”->点admin->区域权限->Plugin Management启用.(为以后npc做准备)
为了用cacti监控流量,配置cacti采集任务:
添加cacti用户
useradd cacti -d /var/www/html/cacti -s /bin/false
chown cacti:cacti /var/www/html/cacti/rra /var/www/html/cacti/log
让系统一分钟采集一次
*/1 * * * * php /var/www/html/cacti/poller.php &>/dev/null也可手工跑一次:
/var/www/html/cacti/poller.php
如果提示没有权限.则可: chmod -R 777 /var/www/html/cacti
如果运行报错如下:
/var/www/html/cacti/poller.php
/var/www/html/cacti/poller.php: line 1: ?php: No such file or directory
/var/www/html/cacti/poller.php: line 2: /bin: is a directory
/var/www/html/cacti/poller.php: line 3: +————————————————————————-+: command not found
/var/www/html/cacti/poller.php: line 4: syntax error near unexpected token `|’
/var/www/html/cacti/poller.php: line 4: ` | Copyright (C) 2004-2009 The Cacti Group |’
则在poller.php的最前面,也就是第一行加入
#!/usr/bin/php -q
解决cacti图形上中文显示问题
下载并安装cjkuni-fonts中文字体，字体名ukai.ttf,下载地址http://ftp.tw.debian.org/debian/pool/main/t/ttf-arphic-ukai/ttf-arphic-ukai_0.1.20060928.orig.tar.gz
安装完成后注意在”设置”中更改下面两个必改项. 常规->RRDTool应用程序版本 改为1.2.x,默认为1.0.x.不改可能图像不能正常显示出来. 路径->RRDTool默认字体路径 改为上面安装的ukai.ttf的文件路径,如/usr/share/fonts/ukai.ttf
来个中文的图
http://www.selfcai.com.cn/wp-content/uploads/2010/03/chines.jpeg
上一文讲了cacti的安装:接下来.是nagios的安装和ndoutils工具的配合使用.
nagios的安装就不用说了.网上的文档太多了.
整合ＮＰＣ 要用的包如下:
PHP 5.1
[*]PDO and JSON support are required(http://aurore.net/projects/php-json/php-json-4.3.2_1.2.1-1.aurore.src.rpm)
[*]Latest NPC>
[*]NDOUtils 1.4b7 (这个版本很重要,不要换,我换了1.4b8 1.4b9都是报数据库查询错误)
[*]Nagios 3.x
[*]Cacti 0.8.7b
[*]Cacti Plugin Architecture v2.0
[*]NPC下载 svn co http://svn2.assembla.com/svn/npc/trunk npc
用以上描述的包,就可以正常工作了.
在/usr/local/nagios/etc/nagios.cfg 中最后加入:
check_external_commands=1
command_check_interval=-1
event_broker_options=-1
broker_module=/usr/local/nagios/bin/ndomod-3x.o config_file=/usr/local/nagios/etc/ndomod.cfg
process_performance_data=1
文件/usr/local/nagios/etc/ndo2db.cfg 如下:
ndo2db_user=nagios
ndo2db_group=nagios
socket_type=tcp
socket_name=/usr/local/nagios/var/ndo.sock
tcp_port=5668
db_servertype=mysql
db_host=localhost
db_port=3306
db_name=cacti
db_user=cacti
db_pass=cactipass
db_prefix=npc_
max_timedevents_age=1440
max_systemcommands_age=10080
max_servicechecks_age=10080
max_hostchecks_age=10080
max_eventhandlers_age=44640
debug_level=1
debug_verbosity=1
debug_file=/usr/local/nagios/var/ndo2db.debug
max_debug_file_size=1000000
文件 /usr/local/nagios/etc/ndomod.cfg 内容如下
instance_name=default
output_type=tcpsocket
output=localhost
tcp_port=5668
output_buffer_items=5000
buffer_file=/usr/local/nagios/var/ndomod.tmp
file_rotation_interval=14400
file_rotation_timeout=60
reconnect_interval=15
reconnect_warning_interval=15
data_processing_options=-1
config_output_options=2
然后启动ndo2db就可以了.
在cacti中的NPC中就可以看到nagios配置的监控信息了.如下图
http://www.selfcai.com.cn/wp-content/uploads/2010/03/cacti-npc1.jpeg
http://www.selfcai.com.cn/wp-content/uploads/2010/03/cacti-npc2.jpeg
参考文档:
http://trac2.assembla.com/npc/wiki/QuickStartGuide
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