Difference between revisions of "Logrotate"

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[[Category:Daemons and system services]]
 
[[Category:Daemons and system services]]
 
[[Category:Data compression and archiving]]
 
[[Category:Data compression and archiving]]
{{Stub}}
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[[ja:Logrotate]]
{{Article summary start}}
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{{Related articles start}}
{{Article summary text|An introduction to the popular log maintenance utility.}}
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{{Related|Cron}}
{{Article summary heading|Related}}
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{{Related|systemd/Timers}}
{{Article summary wiki|Cron}}
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{{Related articles end}}
{{Article summary heading|Resources}}
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{{Article summary link|Logrotate on Gentoo Linux Wiki|http://en.gentoo-wiki.com/wiki/Logrotate}}
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{{Article summary end}}
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From https://fedorahosted.org/logrotate/:
 
From https://fedorahosted.org/logrotate/:
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==Installation==
 
==Installation==
  
{{Pkg|logrotate}} is available in [core] and is installed as a member of the '''base''' group.
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Logrotate can be installed with the {{Pkg|logrotate}} package. It is installed by default as it is member of the {{Grp|base}} group.
  
# pacman -S logrotate
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By default, logrotate runs daily using a [[systemd/Timers|systemd timer]]: {{ic|logrotate.timer}}.
 
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Typically, logrotate is run via a [[cron]] job; {{ic|/etc/cron.daily/logrotate}} is included in the package.
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==Configuration==
 
==Configuration==
  
 
The primary configuration file for logrotate is {{ic|/etc/logrotate.conf}}; additional configuration files are included from the {{ic|/etc/logrotate.d}} directory.
 
The primary configuration file for logrotate is {{ic|/etc/logrotate.conf}}; additional configuration files are included from the {{ic|/etc/logrotate.d}} directory.
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==Troubleshooting==
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=== exim log not rotated ===
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If you have set the {{ic|olddir}} variable in {{ic|/etc/logrotate.conf}}, you will get a message such as:
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{{Ic|error: failed to rename /var/log/exim/mainlog to /var/log/old/mainlog.1: Permission denied}}
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To fix this, add the user {{ic|exim}} to the group {{ic|log}}. Then change the group of the {{ic|olddir}}, usually {{ic|/var/log/old}}, to {{ic|log}} instead of the default {{ic|root}}.
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=== Check logrotate status ===
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Run {{ic|cat /var/lib/logrotate.status}} to se which logrotate files were rotated.
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{{bc|
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"/var/log/mysql/query.log" 2016-3-20-5:0:0
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"/var/log/samba/samba-smbd.log" 2016-3-21-5:0:0
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"/var/log/httpd/access_log" 2016-3-20-5:0:0
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}}
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== See also ==
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* [http://wiki.gentoo.org/wiki/Logrotate Logrotate on Gentoo Linux Wiki]
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* [http://linux.die.net/man/8/logrotate logrotate(8) Manual page]

Latest revision as of 17:54, 23 March 2016

Related articles

From https://fedorahosted.org/logrotate/:

The logrotate utility is designed to simplify the administration of log files on a system which generates a lot of log files. Logrotate allows for the automatic rotation compression, removal and mailing of log files. Logrotate can be set to handle a log file daily, weekly, monthly or when the log file gets to a certain size.

By default, logrotate's rotation consists of renaming existing log files with a numerical suffix, then recreating the original empty log file. For example, /var/log/syslog.log is renamed /var/log/syslog.log.1. If /var/log/syslog.log.1 already exists from a previous rotation, it is first renamed /var/log/syslog.log.2. (The number of backlogs to keep can be configured.)

Installation

Logrotate can be installed with the logrotate package. It is installed by default as it is member of the base group.

By default, logrotate runs daily using a systemd timer: logrotate.timer.

Configuration

The primary configuration file for logrotate is /etc/logrotate.conf; additional configuration files are included from the /etc/logrotate.d directory.

Troubleshooting

exim log not rotated

If you have set the olddir variable in /etc/logrotate.conf, you will get a message such as:

error: failed to rename /var/log/exim/mainlog to /var/log/old/mainlog.1: Permission denied

To fix this, add the user exim to the group log. Then change the group of the olddir, usually /var/log/old, to log instead of the default root.

Check logrotate status

Run cat /var/lib/logrotate.status to se which logrotate files were rotated.

"/var/log/mysql/query.log" 2016-3-20-5:0:0
"/var/log/samba/samba-smbd.log" 2016-3-21-5:0:0
"/var/log/httpd/access_log" 2016-3-20-5:0:0

See also