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Description of problem:
The logwatch has a perl file zz-disk_space which contains a function DiskFull. This function does a split to separate lines, mostly using the df command. When the filesystem name is long, it appears on a line by itself, with the other fields (Size, Used, Avail, Use%, Mounted on) appearing on the next line. Because of this, the check for the filesystem becoming full looks at the wrong field, and fails to report when the disk is becoming full.
Version-Release number of selected component (if applicable):
7.3.6 (released 05/19/07)
How reproducible:
Very
Steps to Reproduce:
1. Go to a host which has a long (> 22 chars) filesystem name.
2. Make its disk usage at or above 90%. Create a big file with truncate or fallocate.
3. sudo logwatch --print
Actual results:
No 'Warning. Disk filling up.' message appears.
Expected results:
Something like this:
/dev/mapper/vg_gw-lv_root => 100% Used. Warning. Disk Filling up.
Additional info:
Created attachment 995717[details]
Possible fix for the DiskFull subroutine
This is one possible fix for the DiskFull subroutine in the zz-disk_space file normally found in /usr/share/logwatch/scripts/services.
Another possible fix is to use the -P option (use the POSIX output format) for the 'df' command. That doesn't shuffle lines when the filesystem is too long. This can be specified using the 'df_options' environment setting.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHBA-2016-0020.html