====== 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.
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