CentOS安装cacti

     2012年12月02日       teddy.sun       运维笔记->系统管理       cacti 

1.安装软件包
yum install -y httpd php php-mysql \
php-snmp mysql mysql-server \
perl-DBD-MySQL php-pdo net-snmp \
net-snmp-libs net-snmp-utils rrdtool
2.启动相关服务
service httpd start
service mysqld start
service snmpd start
chkconfig httpd on
chkconfig mysqld on
chkconfig snmpd on
3.下载cacti
wget -O /tmp/cacti-0.8.7e.tar.gz http://www.cacti.net/downloads/cacti-0.8.7e.tar.gz
mkdir /home/cacti
tar -xzvf /tmp/cacti-0.8.7e.tar.gz -C /home/cacti
mv /home/cacti/cacti-0.8.7e /home/cacti/htdocs
4.向db添加cacti账号
CREATE USER 'cactiuser' IDENTIFIED BY 'yourpassword';
GRANT ALL PRIVILEGES ON cacti.* TO cactiuser@'localhost' IDENTIFIED BY 'yourpassword' WITH GRANT OPTION;
FLUSH PRIVILEGES;
5.导入cacti的数据结构
echo "source /home/cacti/htdocs/cacti.sql" | mysql -ucactiuser -pcactiuser cacti
6.配置apache
cat > /etc/httpd/conf.d/cacti.conf <<EOF
<VirtualHost *:80>
    DocumentRoot /home/cacti/htdocs/
    ServerName   cacti.opstool.com
    CustomLog    /home/cacti/logs/access_log combined
    ErrorLog     /home/cacti/logs/error_log
</VirtualHost>
EOF
service httpd restart
7.添加crond任务
mkdir /home/cacti/conf
cat > /home/cacti/conf/cacti <<EOF
*/5 * * * * apache /usr/bin/php /home/cacti/htdocs/poller.php &>/dev/null
EOF
ln -sf /home/cacti/conf/cacti /etc/cron.d/
service crond reload
8.登录http://cacti.opstool.com
使用默认的用户名密码admin/admin登录,第一次登录后会提示修改密码。

问题:
1.graphs显示无图
原因:cacti中设置rrdtool的版本与系统实际安装的版本不一样。进入cacti,点击console-Settings,然后设置RRDTool Utility Version,选择与系统的一致。如果系统rrdtool版本比cacti中最高的版本还高,那只能选择cacti中支持的最高rrdtool版本尝试一下,如果不行要么考虑cacti升级,要么rrdtool降级,以保证兼容.