Quote Originally Posted by tckosvic View Post
I almost lost my computer due to no / disk space from diagnostic messages. I believe it was due to the diagnostic changes I made regarding shutdown times.
Stop tinkering. Don't try to be too clever. Undo those diagnostics. Rely on journal only.

I got message -- only 1 gig left in root. Then apps stopped running. I did restart and no normal start only black screen. Alt-f2 got me to a login. I got to root and /var/log. messages file was 65 gig. I deleted it. A restart was normal. Subsequently, I deleted all the files in /var/log/journal that I created. Maybe I should delete entire journal directory?
Nope. Journal is a matured application. Use this instead:
erlangen:~ # journalctl --vacuum-size 1G 
Vacuuming done, freed 0B of archived journals from /run/log/journal. 
Vacuuming done, freed 0B of archived journals from /var/log/journal. 
Vacuuming done, freed 0B of archived journals from /var/log/journal/94f3af277bac4a8eb57da425c9677379. 
erlangen:~ #
I also made sure that systemd.journald.conf had "storage=auto" as it was originally. Anything else, I should do to make sure messages are under control? Now I am back at 30% root use out of 100 gig.
Show usage:
erlangen:~ # btrfs filesystem usage -T /            
    Device size:                   1.82TiB 
    Device allocated:            403.07GiB 
    Device unallocated:            1.42TiB 
    Device missing:                  0.00B 
    Used:                        384.71GiB 
    Free (estimated):              1.44TiB      (min: 745.61GiB) 
    Free (statfs, df):             1.44TiB 
    Data ratio:                       1.00 
    Metadata ratio:                   2.00 
    Global reserve:              512.00MiB      (used: 0.00B) 
    Multiple profiles:                  no 

                  Data      Metadata System               
Id Path           single    DUP      DUP      Unallocated 
-- -------------- --------- -------- -------- ----------- 
 1 /dev/nvme0n1p2 397.01GiB  6.00GiB 64.00MiB     1.42TiB 
-- -------------- --------- -------- -------- ----------- 
   Total          397.01GiB  3.00GiB 32.00MiB     1.42TiB 
   Used           381.12GiB  1.79GiB 64.00KiB             
erlangen:~ #

erlangen:~ # du -hd1 -t10k /var/log 
12M     /var/log/YaST2 
8.1M    /var/log/zypp 
72M     /var/log/journal 
3.0M    /var/log/cups 
5.5M    /var/log/audit 
16K     /var/log/samba 
1.5M    /var/log/apache2 
12M     /var/log/updateTestcase-2022-01-25-18-48-40 
12M     /var/log/updateTestcase-2022-01-27-01-22-32 
183M    /var/log 
erlangen:~ #