Is there a way to remove "Last message repeated x times" from logs?

Question

I have a script that updates me on any changes to the kernel log on my (Debian) servers.

The problem is that occasionally the log contains lines like:

last message repeated 4 times

I realize that this is a feature to shorten the size of the logs - but would prefer in this case that every instance of the message be logged instead.

Is there a way to turn off this feature?

You should really reconsider :) I have previously had log messages repeating several thousand times per second and you really don't want these writes happening. — Antoine Benkemoun, Jun 30 '09 at 18:24

score 19 · Answer 1 · edited Aug 29 '21 at 11:48

19

Control repeat message filtering using $RepeatedMsgReduction in /etc/rsyslog.conf (it's on by default on Ubuntu systems):

# Filter duplicated messages
$RepeatedMsgReduction on

More details: https://www.rsyslog.com/doc/master/configuration/action/rsconf1_repeatedmsgreduction.html

edited Aug 29 '21 at 11:48

Jani Uusitalo

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answered Apr 08 '13 at 11:34

Paul Pepper

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score 4 · Accepted Answer · edited May 25 '12 at 18:03

4

On BSD systems, syslogd has -c option, you could start syslogd -cc to disable this feature.

On linux (checked on Debian), man syslogd lists no such option.

It would seem that there is no way to turn it off under linux:

http://www.syslog.org/forum/syslog-and-syslogd/disable-'last-message-repeated'-compression-on-lin/

edited May 25 '12 at 18:03

Jeff Ferland

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answered Jun 23 '09 at 13:54

Karolis T.

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score 4 · Answer 3 · answered Jun 23 '09 at 14:31

4

On RedHat-family distros, or distros using rsyslogd, you add -e to SYSLOGD_OPTIONS in /etc/sysconfig/rsyslog.

Then restart the rsyslog service.

answered Jun 23 '09 at 14:31

Juliano

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score 2 · Answer 4 · answered May 25 '12 at 17:59

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On Ubuntu, you can add -e to RSYSLOGD_OPTIONS in /etc/default/rsyslog and "restart rsyslog". It's not documented in the man page, but it works.

answered May 25 '12 at 17:59

Dan Benamy

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Is there a way to remove "Last message repeated x times" from logs?

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