logrot.pl does not check diskspace before doing a copy process of syslog_info; if there is not enough space, the copy process fails and the content of syslog_log is lost;
I know, that the error handling of such a script cannot take respect on each and every possible error that could appear but in case of the syslog file I would say it is such an essential file that it would be great that the loss of the content could be avoided.
currently I am unable to test if this issue is present in the current version but I found it to be valid in LMS 3.2 on solaris 9; here is the confiuration of logrot.pl
/var/log is configured as the backup directory,
/var/log/syslog_info is configured to be backed up
it seems when starting logrot.pl it first tries to copy syslog_info
the copy process fails due to /var being 100% in use
bash-2.05# /opt/CSCOpx/bin/logrot.pl -c
Read config successfully.
Logrot Configuration Menu
-------------------------
1. Edit variables
2. Edit log files
3. Quit and save changes
4. Quit without saving changes
Enter option: 1
Number Variable Name [Variable Value]
---------------------------------------------------------
1. Backup Directory [/var/log]
2. Restart Delay [60]
q. Go back
Enter variable number to change: q
Logrot Configuration Menu
-------------------------
1. Edit variables
2. Edit log files
3. Quit and save changes
4. Quit without saving changes
Enter option: 2
Number Logfile Name Number of Archives Max Size Compress
-----------------------------------------------------------------------------
1. /var/log/syslog_info 13 1024 gz
a. Add logfile(s)
d. Delete logfile(s)
q. Go back
Enter option or logfile number to edit: q
Logrot Configuration Menu
-------------------------
1. Edit variables
2. Edit log files
3. Quit and save changes
4. Quit without saving changes
Enter option: 4
bash-2.05#
===============================================================
===============================================================
bash-2.05# /opt/CSCOpx/bin/perl /opt/CSCOpx/bin/logrot.pl
cp: /var/log/syslog_info.12.gz: No space left on device
cp: /var/log/syslog_info.0: No space left on device
Wed Jun 8 16:44:03 2011: WARNING: Unable to archive /var/log/syslog_info: No such file or directory
gzip: /var/log/syslog_info.0: No such file or directory
Wed Jun 8 16:44:03 2011: WARNING: Unable to compress /var/log/syslog_info.0: 256
bash-2.05#
bash-2.05# cd /var/log/
bash-2.05# ls -al
total 769616
drwxr-xr-x 2 root sys 1536 Jun 8 16:44 .
drwxr-xr-x 38 root root 1024 Sep 24 2010 ..
-rw------- 1 root sys 0 Jul 27 2005 authlog
-rw-r--r-- 1 root other 372880 Jun 8 02:00 cmMapShare.log
-rw-r--r-- 1 root other 838 Mar 22 2006 sysidconfig.log
-rw-r--r-- 1 root other 884 Jun 8 04:00 syslog
-rw-r--r-- 1 root other 17392 Jun 7 01:00 syslog.0
-rw-r--r-- 1 root other 17299 Jun 1 01:00 syslog.1
-rw-r--r-- 1 root other 16107 May 25 01:00 syslog.2
-rw-r--r-- 1 root other 15908 May 18 01:00 syslog.3
-rw-r--r-- 1 root other 16249 May 11 01:00 syslog.4
-rw-r--r-- 1 root other 17047 May 4 01:00 syslog.5
-rw-r--r-- 1 root other 15908 Apr 27 01:00 syslog.6
-rw-r--r-- 1 root other 15912 Apr 20 01:00 syslog.7
-rw-rw-r-- 1 root sys 0 Jun 8 16:44 syslog_info
-rw-rw-r-- 1 root sys 16485733 Sep 1 2010 syslog_info.0.gz
-rw-rw-r-- 1 root sys 16485733 Sep 1 2010 syslog_info.1.gz
-rw-rw-r-- 1 root sys 19319177 Dec 1 2009 syslog_info.10.gz
-rw-rw-r-- 1 root sys 87397723 Nov 3 2009 syslog_info.11.gz
-rw-rw-r-- 1 root sys 84321257 Oct 5 2007 syslog_info.2.Z.old
-rw-rw-r-- 1 root sys 20818106 Aug 1 2010 syslog_info.2.gz
-rw-rw-r-- 1 root sys 23242884 Jul 1 2010 syslog_info.3.gz
-rw-rw-r-- 1 root sys 19556306 Jun 1 2010 syslog_info.4.gz
-rw-rw-r-- 1 root sys 18299543 May 1 2010 syslog_info.5.gz
-rw-rw-r-- 1 root sys 21785629 Apr 1 2010 syslog_info.6.gz
-rw-rw-r-- 1 root sys 21120869 Mar 1 2010 syslog_info.7.gz
-rw-rw-r-- 1 root sys 23420015 Feb 1 2010 syslog_info.8.gz
-rw-rw-r-- 1 root sys 20852151 Jan 1 2010 syslog_info.9.gz
bash-2.05
before this action syslog_info was about 3 Gig
