Collectd installation: Difference between revisions
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yum install collectd | yum install collectd | ||
yum install collectd-web | yum install collectd-web | ||
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You can now access collectd collections entering this url to a browser: | You can now access collectd collections entering this url to a browser: | ||
http://server_ip/collectd/bin/index.cgi | http://server_ip/collectd/bin/index.cgi | ||
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Type "count" | Type "count" | ||
Instance "PS-a" | Instance "PS-a" | ||
</Match> | |||
<Match> | |||
Regex "heap\\[([0-9]+)" | |||
DSType "GaugeAverage" | |||
Type "count" | |||
Instance "heap" | |||
</Match> | |||
<Match> | |||
Regex "VSZ\\[([0-9]+)" | |||
DSType "GaugeAverage" | |||
Type "count" | |||
Instance "rss" | |||
</Match> | </Match> | ||
</File> | </File> | ||
</Plugin> | |||
= Sensor plugin configuration = | |||
* plugin contains pcie temperature, cpu temperature, etc. | |||
* install lm sensor package | |||
* run sensors-detect binary to detect sensors | |||
* add an example to the config | |||
LoadPlugin sensors | |||
<Plugin sensors> | |||
SensorConfigFile "/etc/sensors3.conf" | |||
</Plugin> | |||
= Disk space plugin = | |||
* simple setting for percentage usage | |||
LoadPlugin df | |||
<Plugin df> | |||
# Device "/dev/hda1" | |||
# Device "192.168.0.2:/mnt/nfs" | |||
# MountPoint "/home" | |||
# FSType "ext3" | |||
# IgnoreSelected false | |||
# ReportByDevice false | |||
# ReportInodes false | |||
ValuesAbsolute false | |||
ValuesPercentage true | |||
</Plugin> | |||
= Scale stored value = | |||
* enable these two plugins | |||
LoadPlugin match_regex | |||
LoadPlugin target_scale | |||
* add a filter (example is for rss count) | |||
<Chain "PreCache"> | |||
<Rule> | |||
<Match "regex"> | |||
Plugin "^tail$" | |||
TypeInstance "^rss$" | |||
Invert false | |||
</Match> | |||
<Target "scale"> | |||
Factor 1048576 | |||
</Target> | |||
</Rule> | |||
</Chain> | |||
= Threshold and notify setting = | |||
* on RH you need to install collectd-notify_email.x86_64 package. On debian it's in collectd-core package. | |||
* example for df setting from the example above | |||
LoadPlugin "notify_email" | |||
<Plugin "notify_email"> | |||
From "collectd@localhost" | |||
Recipient "a@voipmonitor.org" | |||
Recipient "b@voipmonitor.org" | |||
</Plugin> | |||
LoadPlugin "threshold" | |||
<Plugin threshold> | |||
<Plugin "df"> | |||
Instance "root" | |||
<Type "percent_bytes-used"> | |||
WarningMax 75 | |||
</Type> | |||
</Plugin> | |||
</Plugin> | |||
* for notify's logging in syslog (can be set together with notify_email) | |||
<Plugin syslog> | |||
# LogLevel info | |||
NotifyLevel "OKAY" | |||
</Plugin> | </Plugin> |
Latest revision as of 17:38, 14 September 2018
Centos
Httpd You need to have installed web server with enabled perl and CGI scripts processing (for be possible to look at results using web-browser). This how to doesn't cover web server configuation.
Install collectd packages from epel repositories:
yum install epel-release yum install collectd yum install collectd-web
Atention: by default is web-collection accessible only from localhost, see config of httpd (search for 'Deny from' and 'Allow from' and change it:
vim /etc/httpd/conf.d/collectd.conf service httpd restart
You can now access collectd collections entering this url to a browser:
http://server_ip/collectd/bin/index.cgi
Debian
Apache2
For ability checking results using browser you need web server with enabled CGI and perl scripts processing.
Enable apache2 modules
perl cgi
using command a2enmod .
Add CGI handler into apache processing (in mime.conf uncomment)
AddHandler cgi-script .cgi
Define +ExecCGI option under directory where will be collctd's GUI link placed
<Directory "/var/www/html/abcdefg/collectd"> Options +ExecCGI </Directory>
Debian7
Install collectd packages from debian main repositories:
apt-get install collectd libregexp-common-perl libconfig-general-perl librrds-perl
Create link from default www directory to collectd's doc.
ln -s /usr/share/doc/collectd-core/examples/collection3/ /var/www/collectd
Restart apache web-server (you should have cgid mod enabled "a2enmod cgid")
/etc/init.d/apache2 restart
You can now access using browser:
http://server_ip/collectd/bin/index.cgi
Debian8
Install collectd packages from debian main repositories:
apt-get install collectd libregexp-common-perl libconfig-general-perl librrds-perl
Create link from default www directory to collectd's collections.
ln -s /usr/share/doc/collectd-core/examples/collection3/ /var/www/html/collectd
Restart apache
service apache2 restart
You can now access using browser:
http://server_ip/collectd/bin/index.cgi
Tail config example
LoadPlugin tail <Plugin tail> <File "/var/log/messages"> Instance "voipmonitor" Interval 30 <Match> Regex "calls.([0-9]+)," DSType "GaugeAverage" Type "count" Instance "Calls" </Match> <Match> Regex "PS\\[C:([0-9]+)" DSType "GaugeAverage" Type "count" Instance "PS-C" </Match> <Match> Regex "PS\\[.* R:([0-9]+)" DSType "GaugeAverage" Type "count" Instance "PS-R" </Match> <Match> Regex "PS\\[.* A:([0-9]+)" DSType "GaugeAverage" Type "count" Instance "PS-a" </Match> <Match> Regex "heap\\[([0-9]+)" DSType "GaugeAverage" Type "count" Instance "heap" </Match> <Match> Regex "VSZ\\[([0-9]+)" DSType "GaugeAverage" Type "count" Instance "rss" </Match> </File> </Plugin>
Sensor plugin configuration
- plugin contains pcie temperature, cpu temperature, etc.
- install lm sensor package
- run sensors-detect binary to detect sensors
- add an example to the config
LoadPlugin sensors <Plugin sensors> SensorConfigFile "/etc/sensors3.conf" </Plugin>
Disk space plugin
- simple setting for percentage usage
LoadPlugin df <Plugin df> # Device "/dev/hda1" # Device "192.168.0.2:/mnt/nfs" # MountPoint "/home" # FSType "ext3" # IgnoreSelected false # ReportByDevice false # ReportInodes false ValuesAbsolute false ValuesPercentage true </Plugin>
Scale stored value
- enable these two plugins
LoadPlugin match_regex LoadPlugin target_scale
- add a filter (example is for rss count)
<Chain "PreCache"> <Rule> <Match "regex"> Plugin "^tail$" TypeInstance "^rss$" Invert false </Match> <Target "scale"> Factor 1048576 </Target> </Rule> </Chain>
Threshold and notify setting
- on RH you need to install collectd-notify_email.x86_64 package. On debian it's in collectd-core package.
- example for df setting from the example above
LoadPlugin "notify_email" <Plugin "notify_email"> From "collectd@localhost" Recipient "a@voipmonitor.org" Recipient "b@voipmonitor.org" </Plugin>
LoadPlugin "threshold" <Plugin threshold> <Plugin "df"> Instance "root" <Type "percent_bytes-used"> WarningMax 75 </Type> </Plugin> </Plugin>
- for notify's logging in syslog (can be set together with notify_email)
<Plugin syslog> # LogLevel info NotifyLevel "OKAY" </Plugin>