提前安裝的包
yum install help2man
yum install rrdtool rrdtool-devel rrdtool-php rrdtool-perl
yum install gd gd-devel php-gd
yum install net-snmp*
yum安裝 MariaDB-10.3
添加文件/etc/yum.repos.d/MariaDB.repo，內容如下。
# MariaDB 10.3 CentOS repository list - created 2017-02-17 06:03 UTC
# http://downloads.mariadb.org/mariadb/repositories/
[mariadb]
name = MariaDB
baseurl = http://yum.mariadb.org/10.3/centos7-amd64
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
gpgcheck=1
安裝MariaDB
yum install MariaDB-server MariaDB-client
配置文件/etc/my.cnf，添加如下內容
[client]
default-character-set=utf8mb4
[mysqld]
port = 3306
socket = /var/lib/mysql/mysql.sock
skip-external-locking
key_buffer_size = 16K
max_allowed_packet = 16M
table_open_cache = 4
sort_buffer_size = 64K
read_buffer_size = 256K
read_rnd_buffer_size = 256K
net_buffer_length = 2K
thread_stack = 240K
max_heap_table_size = 50M
tmp_table_size = 64M
join_buffer_size = 64M
innodb_doublewrite = OFF
innodb_flush_log_at_timeout = 3
innodb_read_io_threads = 32
innodb_write_io_threads = 16
max_connections = 128
default_time_zone = 'Asia/Shanghai'
character_set_server = utf8mb4
collation-server = utf8mb4_unicode_ci
innodb_buffer_pool_size = 242M
解決MySQL TimeZone database is not populated問題
mysql_tzinfo_to_sql /usr/share/zoneinfo | mysql -u root mysql -p
php
使用nginx做web服務器（建議編譯安裝）
yum install php-mysql php-pear php-common php-gd php-devel php php-mbstring php-cli php-snmp php-ldap php-fpm
安裝cacti-1.1.2
安裝cacti-spine
tar zxvf cacti-spine-1.1.2.tar.gz
cd cacti-spine-1.1.2
./bootstrap
./configure
make
make install
chown root:root /usr/local/spine/bin/spine
chmod +s /usr/local/spine/bin/spine
cd /usr/local/spine/etc
cp spine.conf.dist spine.conf
編輯spine.conf
修改數據庫相關的用戶名和密碼
安裝cacti
安裝源碼
tar zxvf cacti-1.1.2.tar.gz
mv cacti-1.1.2 /var/www/html/cacti
chown -R nginx:nginx /var/www/html/cacti
編輯config.php
cd /var/www/html/cacti/include/
cp config.php.dist config.php
修改數據相關的用戶名和密碼
導入sql
mysql -uroot -p
MariaDB [(none)]> create database cacti;
MariaDB [(none)]> grant all on *.* to cactiuser@localhost identified by "cactipass";
MariaDB [(none)]> flush privileges;
mysql -u cactiuser -p cacti < /var/www/html/cacti/cacti.sql
數據庫名稱:cacti
用戶名:cactiuser
數據庫密碼:cactipass
確認web和db服務都已啟動，使用下面命令啟動
systemctl start mariadb.service
systemctl start nginx.service
systemctl start php-fpm.service
這3個進程都要啟動
配置cacti
添加crontab任務
vim /etc/cron.d/cacti
*/1 * * * * nginx /usr/bin/php /var/www/html/cacti/poller.php > /dev/null 2>&1
注意是使用nginx用戶運行crontab
訪問 http://your-ip/cacti ，根據向導進行配置。
默認用戶admin 密碼admin，第一次登陸需要修改，新密碼規則最低要求包括字母大小寫、數字。
Configuration的settings修改
paths
spine二進制文件和spine.conf所在路徑。
RRDfile Auto Clean打勾，方式選擇Delete。
Device Defaults
Downed Device Detection選擇none。
Poller
Poller Type選擇spine
Poller Interval選擇Every Minute
Cron Interval選擇Every Minute
Maximum Threads per Process選擇2（CPU內核數的整數倍）
Number of PHP Script Servers選擇1
Script and Script Server Timeout Value選擇45
The Maximum SNMP OIDs Per SNMP Get Request選擇8（2的次方）
Data Storage
Structured RRD Path (/host_id/local_data_id.rrd)打勾
Visual
Enable Real-time Graphing打勾
Mail/Reporting/DNS
Server Base URL填寫網站完整的url
Templates
Data Source里的Interface - Traffic修改Data Source Profile為High Collection Rate（支持每分鐘視圖）
cacti版本升級
備份mysql數據
mysqldump -l --add-drop-table cacti > mysql.cacti -u root -p
升級spine
刪除老版本spine
rm -rf /usr/local/spine/
安裝配置新版本spine
升級cacti
備份老cacti文件夾
cd /var/www/html
mv cacti cacti_old
解壓新版本
tar zxvf cacti-1.1.5.tar.gz
mv cacti-1.1.5 /var/www/html/cacti
chown -R nginx:nginx /var/www/html/cacti
編輯config.php
從老版本文件夾復制相關文件到新版本
cp -r cacti_old/rra/* cacti/rra/
cp -u cacti_old/scripts/* cacti/scripts/
cp -u -R cacti_old/resource/* cacti/resource/
chown -R nginx:nginx /var/www/html/cacti
確認rra,log這2個文件夾的權限(user/group)。
管理界面升級
訪問cacti所在url，根據向導升級cacti
