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logrot.pl (v.4.4) issue on solaris 9

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

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logrot.pl (v.4.4) issue on solaris 9

Would it be sufficient to change the warning about archival to an error to make it fatal?

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