Re: [systemd-devel] Q: "systemd-journald: ... /system.journal: Journal file uses a different sequence number ID, rotating."

2025-02-06 Thread Andrei Borzenkov 

07.02.2025 08:57, Windl, Ulrich wrote:

Hi!

When upgrading SLES 15 from SP5 to SP6 also involved updating systemd (from 249 
to 254):
On first boot I noticed the message "systemd-journald[673]: 
/var/log/journal/aefe6ef1acb28655ef1a2fa8610cef2b/system.journal: Journal file uses a 
different sequence number ID, rotating."
That was kind of expected as the journal offers new features.
However I see the same message on every boot since then.
I suspect that journald sees some old journal log, so it wants to rotate; 
however shouldn't it see the newer journal log also?



https://github.com/systemd/systemd/issues/30092

Hint - github has search function.

Re: [systemd-devel] Q: "systemd-journald: ... /system.journal: Journal file uses a different sequence number ID, rotating."

2025-02-06 Thread Windl, Ulrich 
I noticed that systemd-journald has an option to "rotate" the journal, but I 
could not find a manpage that explains what "rotation" actually means.

Kind regards,
Ulrich Windl

[systemd-devel] Q: "systemd-journald: ... /system.journal: Journal file uses a different sequence number ID, rotating."

2025-02-06 Thread Windl, Ulrich 
Hi!

When upgrading SLES 15 from SP5 to SP6 also involved updating systemd (from 249 
to 254):
On first boot I noticed the message "systemd-journald[673]: 
/var/log/journal/aefe6ef1acb28655ef1a2fa8610cef2b/system.journal: Journal file 
uses a different sequence number ID, rotating."
That was kind of expected as the journal offers new features.
However I see the same message on every boot since then.
I suspect that journald sees some old journal log, so it wants to rotate; 
however shouldn't it see the newer journal log also?

For example I see (long lines!):
# ll /var/log/journal/aefe6ef1acb28655ef1a2fa8610cef2b/
total 262704
-rw-r-  1 root systemd-journal  8388608 Feb  7 06:52 system.journal
-rw-r-  1 root systemd-journal 16777216 Jan 13 10:38 
[email protected]~
-rw-r-  1 root systemd-journal  4942048 Jan 31 13:49 
system@04b261267cd54c5cb6dfecc7cffb066f-0001686a-00062cffc7cf6f2c.journal
-rw-r-  1 root root16777216 May 23  2024 
system@801d8a4e11874bf4a840568e7b18e203-0001-000616af9b034887.journal
-rw-r-  1 root root16777216 Jun 22  2024 
system@801d8a4e11874bf4a840568e7b18e203-2305-000619149353abe6.journal
-rw-r-  1 root systemd-journal 16777216 Jul 23  2024 
system@801d8a4e11874bf4a840568e7b18e203-3e97-00061b794ae8fbda.journal
-rw-r-  1 root systemd-journal 16777216 Aug 22 12:00 
system@801d8a4e11874bf4a840568e7b18e203-68b4-00061dde013b657e.journal
-rw-r-  1 root systemd-journal 16777216 Sep 21 23:00 
system@801d8a4e11874bf4a840568e7b18e203-8496-00062042b8d0b3ca.journal
-rw-r-  1 root systemd-journal 16777216 Oct 22 10:00 
system@801d8a4e11874bf4a840568e7b18e203-a053-000622a77065fd9c.journal
-rw-r-  1 root systemd-journal 16777216 Nov 21 20:00 
system@801d8a4e11874bf4a840568e7b18e203-d01f-0006250c28fc0eba.journal
-rw-r-  1 root systemd-journal 16777216 Dec 22 07:00 
system@801d8a4e11874bf4a840568e7b18e203-ebd3-00062770e09159a9.journal
-rw-r-  1 root systemd-journal  7322384 Jan 13 13:46 
system@801d8a4e11874bf4a840568e7b18e203-0001379c-00062b93337b34a1.journal
-rw-r-  1 root systemd-journal  6144336 Feb  5 13:29 
system@acfa2ef9daee47b08a5ae900ed28c6af-000170b3-00062cfff78de40a.journal
-rw-r-  1 root systemd-journal  8227976 Jan 31 13:35 
system@c21d310247504551b0158fa32695cc01-00014c44-00062b95d4283379.journal
-rw-r-+ 1 root systemd-journal  8388608 Dec 22 07:05 user-1.journal
-rw-r-+ 1 root root 8388608 May 23  2024 
user-1@9e6078f3ed8f422ea3b0579a74f591c7-0850-000616c3cf9786df.journal
-rw-r-+ 1 root root 8388608 Jun 22  2024 
user-1@9e6078f3ed8f422ea3b0579a74f591c7-2387-0006191fba20c991.journal
-rw-r-+ 1 root root 8388608 Jul 23  2024 
user-1@9e6078f3ed8f422ea3b0579a74f591c7-3ebe-00061b7ba4acd4f4.journal
-rw-r-+ 1 root systemd-journal  8388608 Aug 22 12:00 
user-1@9e6078f3ed8f422ea3b0579a74f591c7-6918-00061de62e381e7c.journal
-rw-r-+ 1 root systemd-journal  8388608 Sep 21 23:00 
user-1@9e6078f3ed8f422ea3b0579a74f591c7-8572-000620563a301574.journal
-rw-r-+ 1 root systemd-journal  8388608 Oct 22 10:00 
user-1@9e6078f3ed8f422ea3b0579a74f591c7-a0dc-000622b224b97898.journal
-rw-r-+ 1 root systemd-journal  8388608 Nov 21 20:00 
user-1@9e6078f3ed8f422ea3b0579a74f591c7-d102-0006251f8cdc0017.journal
-rw-r-+ 1 root systemd-journal  8388608 Dec 22 07:00 
user-1@9e6078f3ed8f422ea3b0579a74f591c7-ec61-0006277b77631030.journal
-rw-r-+ 1 root systemd-journal  8388608 Oct 22 10:00 
user-54321@3a755daa8dd2477ea12103431b20e3b0-ae9e-000623dd86431883.journal


Maybe I just don't understand what "rotating" really means.
# file /var/log/journal/aefe6ef1acb28655ef1a2fa8610cef2b/*
/var/log/journal/aefe6ef1acb28655ef1a2fa8610cef2b/system.journal:   
 Journal file, online
/var/log/journal/aefe6ef1acb28655ef1a2fa8610cef2b/[email protected]~:
 Journal file, offline
/var/log/journal/aefe6ef1acb28655ef1a2fa8610cef2b/system@04b261267cd54c5cb6dfecc7cffb066f-0001686a-00062cffc7cf6f2c.journal:
 Journal file, archived
/var/log/journal/aefe6ef1acb28655ef1a2fa8610cef2b/system@801d8a4e11874bf4a840568e7b18e203-0001-000616af9b034887.journal:
 Journal file, archived
/var/log/journal/aefe6ef1acb28655ef1a2fa8610cef2b/system@801d8a4e11874bf4a840568e7b18e203-2305-000619149353abe6.journal:
 Journal file, archived