cacti是用php语言实现的一个软件，它的主要功能是用snmp服务获取数据，然后用rrdtool储存和更新数据，当用户需要查看数据的时候用rrdtool生成图表呈现给用户。因此，snmp和rrdtool是cacti的关键。Snmp关系着数据的收集，rrdtool关系着数据存储和图表的生成。 安装环境 centos6 64bit 1搭建所需环境 [root@localhost ~]# rpm -qa | grep zlib zlib-1.2.3-27.el6.x86_64 zlib-devel-1.2.3-27.el6.x86_64 [root@localhost ~]# rpm -qa | grep libpng libpng-static-1.2.46-1.el6_1.x86_64 libpng-1.2.46-1.el6_1.x86_64 libpng-devel-1.2.46-1.el6_1.x86_64 [root@localhost ~]# rpm -qa | grep freetype freetype-demos-2.3.11-6.el6_1.8.x86_64 freetype-devel-2.3.11-6.el6_1.8.x86_64 freetype-2.3.11-6.el6_1.8.x86_64 [root@localhost ~]# rpm -qa | grep jpeg libjpeg-6b-46.el6.x86_64 [root@localhost ~]# rpm -qa | grep php php-mysql-5.3.3-3.el6_1.3.x86_64 php-cli-5.3.3-3.el6_1.3.x86_64 php-snmp-5.3.3-3.el6_1.3.x86_64 php-gd-5.3.3-3.el6_1.3.x86_64 php-common-5.3.3-3.el6_1.3.x86_64 php-pdo-5.3.3-3.el6_1.3.x86_64 php-5.3.3-3.el6_1.3.x86_64 [root@localhost ~]# rpm -qa | grep perl perl-libs-5.10.1-119.el6_1.1.x86_64 perl-DBI-1.609-4.el6.x86_64 perl-Pod-Escapes-1.04-119.el6_1.1.x86_64 perl-devel-5.10.1-119.el6_1.1.x86_64 perl-Module-Pluggable-3.90-119.el6_1.1.x86_64 perl-5.10.1-119.el6_1.1.x86_64 perl-ExtUtils-MakeMaker-6.55-119.el6_1.1.x86_64 perl-Pod-Simple-3.13-119.el6_1.1.x86_64 net-snmp-perl-5.5-37.el6_2.1.x86_64 perl-DBD-MySQL-4.013-3.el6.x86_64 yum install tcl* [root@localhost ~]# rpm -qa | grep mysql php-mysql-5.3.3-3.el6_1.3.x86_64 mysql-connector-odbc-5.1.5r1144-7.el6.x86_64 mysql-connector-java-5.1.12-2.el6.x86_64 mysql-libs-5.1.52-1.el6_0.1.x86_64 mysql-server-5.1.52-1.el6_0.1.x86_64 mysql-bench-5.1.52-1.el6_0.1.x86_64 mysql-5.1.52-1.el6_0.1.x86_64 mysql-devel-5.1.52-1.el6_0.1.x86_64 mysql-embedded-5.1.52-1.el6_0.1.x86_64 [root@localhost ~]# rpm -qa | grep net-snmp net-snmp-utils-5.5-37.el6_2.1.x86_64 net-snmp-libs-5.5-37.el6_2.1.x86_64 net-snmp-5.5-37.el6_2.1.x86_64 net-snmp-perl-5.5-37.el6_2.1.x86_64 net-snmp-devel-5.5-37.el6_2.1.x86_64 2安装rrdtool tar zxvf rrdtool-1.2.27.tar.gz cd rrdtool-1.2.27 ./configure --prefix=/usr/local (关于这个指定路径的问题 一说是必须指定路径） make make install 3安装cacti tar zxvf cacti-0.8.7i.tar.gz mv cacti-0.8.7i /var/www/html/cacti 4 mysql>create database cacti default character set utf8; mysql>grant all privileges on cacti.* to cacti@localhost identified by '123456'; mysql>flush privileges; 5vim /var/www/html/cacti/include/config.php $database_type = "mysql"; $database_default = "cacti"; $database_hostname = "localhost"; $database_username = "cacti"; $database_password = "123456"; 5关闭selinux或者 setenforce 0 6 useradd cacti chown -R cacti.cacti /var/www/html/cacti chmod 777 -R /var/www/html/cacti 7 /etc/init.d/httpd start /etc/init.d/mysqld start /etc/init.d/iptables stop 8输入http://ip/cacti/ 进行安装以及路径的选择 问题1 CACTI不能显示图像，rra下没有文件！权限，PATH，snmpwalk没问题 把 Data Source Debug 的命令在cacti服务器端执行一次,就可以了 问题2 cacti图像不连续的解决方法 1 [root@localhost rra]# /usr/local/bin/rrdtool fetch localhost_mem_swap_4.rrd AVERAGE 用此命令检查 如果是nan说明没有采集到数据 1324534200: -nan 1324534500: -nan 1324534800: -nan 1324535100: -nan 1324535400: -nan 1324535700: -nan 1324536000: -nan 1324536300: -nan 1324536600: -nan 1324536900: -nan 2这个一般是网络问题或者是snmp有问题 解决办法就是 进入cacti管理界面执行 管理--图像管理---随便点击一个图片---然后打开图像调试模式--保存 然后就好了 问题3 cacti监控远程主机的配置 一 被监控端操作 1被监控端vim /etc/snmp/snmpd.conf的配置如下（确保配置文件有如下内容） com2sec notConfigUser 127.0.0.1 public com2sec notConfigUser 192.168.1.130（被监控的IP） public group notConfigGroup v1 notConfigUser group notConfigGroup v2c notConfigUser view systemview included .1.3.6.1.2.1.1 view systemview included .1.3.6.1.2.1.2 view systemview included .1.3.6.1.2.1.25.1.1 view all included .1 access notConfigGroup "" any noauth exact all none none com2sec notConfigUser default public com2sec *.*.*.0 192.168.1.130/24 public group MyRWGroup any local group MyROGroup any mynetwork group notConfigUser any zoom view all included .1 80 view mib2 included .iso.org.dod.internet.mgmt.mib-2 fc access MyROGroup "" any noauth 0 all none none access MyRWGroup "" any noauth 0 all all all syslocation Unknown (edit /etc/snmp/snmpd.conf) syscontact Root (configure /etc/snmp/snmp.local.conf) dontLogTCPWrappersConnects yes 2重启snmp服务 /etc/init.d/snmpd restart 3iptables关闭 /etc/init.d/iptables stop 二 cacti监控端 1 snmpwalk -v 1 192.168.1.130 -c public 执行检测看到如下结果 表明配置成功 HOST-RESOURCES-MIB::hrSWInstalledDate.858 = STRING: 2011-12-22,1:22:25.0,-8:0 HOST-RESOURCES-MIB::hrSWInstalledDate.859 = STRING: 2011-12-22,1:18:49.0,-8:0 HOST-RESOURCES-MIB::hrSWInstalledDate.860 = STRING: 2011-12-22,1:20:12.0,-8:0 HOST-RESOURCES-MIB::hrSWInstalledDate.861 = STRING: 2011-12-22,1:22:25.0,-8:0 HOST-RESOURCES-MIB::hrSWInstalledDate.862 = STRING: 2011-12-22,1:18:57.0,-8:0 HOST-RESOURCES-MIB::hrSWInstalledDate.863 = STRING: 2011-12-22,1:20:24.0,-8:0 HOST-RESOURCES-MIB::hrSWInstalledDate.864 = STRING: 2011-12-22,1:22:25.0,-8:0 HOST-RESOURCES-MIB::hrSWInstalledDate.865 = STRING: 2011-12-22,1:19:3.0,-8:0 HOST-RESOURCES-MIB::hrSWInstalledDate.866 = STRING: 2011-12-22,1:20:29.0,-8:0 HOST-RESOURCES-MIB::hrSWInstalledDate.867 = STRING: 2011-12-22,1:22:26.0,-8:0 HOST-RESOURCES-MIB::hrSWInstalledDate.868 = STRING: 2011-12-22,1:19:4.0,-8:0 HOST-RESOURCES-MIB::hrSWInstalledDate.869 = STRING: 2011-12-22,1:20:30.0,-8:0 DISMAN-EVENT-MIB::mteEventNotificationObjects."_snmpd".'_linkDown' = STRING: _linkUpDown DISMAN-EVENT-MIB::mteEventNotificationObjects."_snmpd".'_linkUp' = STRING: _linkUpDown DISMAN-EVENT-MIB::mteEventNotificationObjects."_snmpd".'_mteTriggerFailure' = STRING: _triggerFail DISMAN-EVENT-MIB::mteEventNotificationObjects."_snmpd".'_mteTriggerFalling' = STRING: _triggerFire DISMAN-EVENT-MIB::mteEventNotificationObjects."_snmpd".'_mteTriggerFired' = STRING: _triggerFire DISMAN-EVENT-MIB::mteEventNotificationObjects."_snmpd".'_mteTriggerRising' = STRING: _triggerFire NOTIFICATION-LOG-MIB::nlmConfigGlobalEntryLimit.0 = Gauge32: 1000 NOTIFICATION-LOG-MIB::nlmConfigGlobalAgeOut.0 = Gauge32: 1440 minutes NOTIFICATION-LOG-MIB::nlmStatsGlobalNotificationsLogged.0 = Counter32: 0 notifications NOTIFICATION-LOG-MIB::nlmStatsGlobalNotificationsBumped.0 = Counter32: 0 notifications 2cacti控制端监控查看 问题4 监控设备处于unknow状态 acti新添加的主机能手动获取snmp信息，但cacti里面一直是unknown,本机没有问题，就是新增加的主机出不了图。 故障排除: 操作流程： 1 进入控制台－系统工具－重建绘图器缓存 2 在cacti服务器上运行 /usr/bin/php /var/www/html/poller.php 数分钟后，假如还是不行，重复上述操作一次，即可！
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