Red Hat Bugzilla – Bug 140429
logwatch doesn't process yum logs correctly
Last modified: 2007-11-30 17:10:55 EST
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5)
Description of problem:
logwatch produces no output after processing /var/log/yum.log, even
though the log contains entries from the relevant time range.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Run "logwatch --service yum --range All --detail high --print" as root.
Actual Results: No output.
Expected Results: logwatch should print a list of the packages
installed or updated by yum during the period covered by the log file.
I've attached my /var/log/yum.log file for reference. I'm using
Created attachment 107244 [details]
Removing the line:
from /etc/log.d/conf/logfiles/yum.conf solves the problem. Though, I
haven't yet found out what it does or tries to do. :)
Ok, the above doesn't really solve it, as it always shows anything
that's in your yum.log...
The problem does seem to be with the *ApplyUSDate script;
*ApplyStdDate doesn't work either. I modified
/etc/log.d/scripts/services/yum to print out each line that it
received from stdin, and if either *ApplyUSDate or *ApplyStdDate are
used in /etc/log.d/conf/logfiles/yum.conf,
/etc/log.d/scripts/services/yum gets no input. If neither script is
used, /etc/log.d/scripts/services/yum gets the entire log file as
input. I'm not sure why *ApplyStdDate doesn't work, since the dates
seem to be in the same format as /var/log/messages (but without the
Okay, I've found and fixed the problems. yum logs are not in US date
format but in syslog format without a host name. I modified
ApplyStdDate to produce a script ApplyYumDate and modified
/etc/log.d/conf/logfiles/yum.conf to use it. I also patched
/etc/log.d/scripts/services/yum to remove dates in the syslog format
"Nov 09 23:56:36". I'm attaching both applyyumdate and the patches.
Created attachment 107340 [details]
/etc/log.d/scripts/shared/applyyumdate: logwatch date filter for yum logs
logwatch date filter for yum logs
Created attachment 107342 [details]
patch to /etc/log.d/scripts/services/yum
Created attachment 107343 [details]
patch to /etc/log.d/conf/logfiles/yum.conf
Created attachment 107849 [details]
The applyyumdate script above will fail on single digit dates, as yum 2.1's log
file has a leading zero on these, and applyyumdate assumes a leading space.
Also, the standard way of adding a custom applydate script for a specific
logfile format is to put it in a directory for that log file name under the
/etc/log.d/scripts/logfiles directory, rather than in shared scripts. I've set
up my /etc/log.d/scripts/logfiles/yum/applydate script for yum to handle both
the old (pre-2.1) and new date formats. No change is needed to the
/etc/log.d/scripts/services/yum, but the "*ApplyUSDate" line in
/etc/log.d/conf/logfiles/yum.conf should be removed entirely.
The above changes seem to work fine for me. Thanks!
The change mentioned in this bug work a charm for me too - can this change be
pushed out in an update?
I've put together a package based on the latest development SRPM and included
Gilles Detillieux's changes mentioned in comment #9. Works fine for me (in older
versions of Fedora too).
It's available at:
I'll maintain a logwatch package there until such time as an official update
comes out that fixes this problem.
This issue is fixed in upstream versions >= 6
Fixed version in fc4.