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| + | ====== collectd ====== | ||
| + | collectd is a daemon that gathers system processes, and generates RRD files. | ||
| + | |||
| + | See also [[CGP]] for web statistics. | ||
| + | |||
| + | ==== Requirements ==== | ||
| + | |||
| + | * rrdtool | ||
| + | * apache web server with PHP support | ||
| + | * A MySQL user that can excecute 'SHOW STATUS'; | ||
| + | * .htaccess file to limit visibility | ||
| + | |||
| + | ==== CentOS ==== | ||
| + | |||
| + | Repository installs: | ||
| + | |||
| + | <code> | ||
| + | yum install libpcap-devel | ||
| + | </code> | ||
| + | |||
| + | Download and install manually: | ||
| + | |||
| + | * [[http://oss.oetiker.ch/rrdtool/pub/|rrdtool]] - use --prefix=/usr | ||
| + | * [[http://collectd.org/download.shtml#source|collectd]] - use --prefix=/usr then make all install | ||
| + | |||
| + | == Startup == | ||
| + | |||
| + | Download and install the collectd init script. | ||
| + | |||
| + | == Notes == | ||
| + | |||
| + | On one CentOS install, I was having trouble with collectd's rrdtool library linking correctly. The fix that worked was to install rrdtool with a prefix of /usr. | ||
| + | |||
| + | |||
| + | ==== Gentoo ==== | ||
| + | |||
| + | ''make.conf changes'' | ||
| + | |||
| + | <code>COLLECTD_PLUGINS="apache cpu disk iptables logfile mysql processes uptime users swap | ||
| + | syslog load conntrack interface memory netlink rrdtool tcpconns vmem df protocols sensors"</code> | ||
| + | |||
| + | ==== FreeBSD ==== | ||
| + | |||
| + | Located in ''/usr/ports/net-mgmt/collectd'' | ||
| + | |||
| + | <code> | ||
| + | echo collectd_enable=YES >> /etc/rc.conf | ||
| + | mkdir /var/lib/collectd | ||
| + | /usr/local/etc/rc.d/collectd start | ||
| + | </code> | ||
| + | |||
| + | ==== MySQL ==== | ||
| + | |||
| + | Create a new user with proper privileges: | ||
| + | |||
| + | <code> | ||
| + | CREATE USER 'collectd'@'localhost' IDENTIFIED BY 'password'; | ||
| + | GRANT SELECT, PROCESS, SHOW DATABASES, SUPER ON *.* TO 'collectd'@'localhost'; | ||
| + | FLUSH PRIVILEGES; | ||
| + | </code> | ||
| + | |||
| + | |||
| + | === Notes === | ||
| + | |||
| + | Some plugins will not work on a VPS because you do not have direct access to the hardware. | ||
| + | |||
| + | Once you start collectd, tail the system logs to make sure everything is okay. | ||
