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unknwn

Member

Registered: 2008-02-02

Posts: 35

journalctl log file size

Hello,

I have below values in /etc/systemd/journald.conf

[Journal]
SystemMaxUse=50M
SystemMaxFileSize=10M

However journalctl --disk-usage gives:

Archived and active journals take up 88.0M on disk.

du -sh /var/log/journal:

89M	/var/log/journal.

Also I cannot manually clean up the log with journalctl --vacuum-size=10M which gives:

Vacuuming done, freed 0B of archived journals on disk.

How to adjust the maximum log file size or clean the log manually? Thanks.

Last edited by unknwn (2015-09-13 11:28:41)

mauritiusdadd

Member

From: Benevento, Italy

Registered: 2013-10-27

Posts: 776

Re: journalctl log file size

By any chance, there are corrupted files in your journal corrupted? Can you please post the output of the following commands?

$ journalctl --verify
$ journalctl -b -u systemd-journald

Last edited by mauritiusdadd (2015-09-13 12:20:48)

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unknwn

Member

Registered: 2008-02-02

Posts: 35

Re: journalctl log file size

$ journalctl --verify
PASS: /var/log/journal/052fcaef9eb749a88e906e27e176bae2/system.journal
PASS: /var/log/journal/052fcaef9eb749a88e906e27e176bae2/user-1000.journal
$ journalctl -b -u systemd-journald
-- No entries --

loafer

Member

From: the pub

Registered: 2009-04-14

Posts: 1,772

Re: journalctl log file size

Also bear in mind that vacuuming only works on archived journal files, not active ones.

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mauritiusdadd

Member

From: Benevento, Italy

Registered: 2013-10-27

Posts: 776

Re: journalctl log file size

And what does systemctl say?

$ systemctl status systemd-journald.service

and also post the output of

$ ls -lah /var/log/journal/052fcaef9eb749a88e906e27e176bae2/

Last edited by mauritiusdadd (2015-09-13 13:42:04)

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About me - github

-- When you have eliminated the impossible, whatever remains, however improbable, must be the truth -- Spock | Sherlock Holmes

unknwn

Member

Registered: 2008-02-02

Posts: 35

Re: journalctl log file size

$ systemctl status systemd-journald.service
● systemd-journald.service - Journal Service
   Loaded: loaded (/usr/lib/systemd/system/systemd-journald.service; static; vendor preset: disabled)
   Active: active (running) since Sun 2015-09-13 14:15:00 EEST; 7h ago
     Docs: man:systemd-journald.service(8)
           man:journald.conf(5)
 Main PID: 154 (systemd-journal)
   Status: "Processing requests..."
   CGroup: /system.slice/systemd-journald.service
           └─154 /usr/lib/systemd/systemd-journald

Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.

it seems log size decreased, althought I didn't change anything:

$ ls -lah /var/log/journal/052fcaef9eb749a88e906e27e176bae2/
total 17M
drwxr-sr-x+ 2 root systemd-journal 4.0K Sep 13 15:39 .
drwxr-sr-x+ 4 root systemd-journal 4.0K Sep 10 00:40 ..
-rw-r-----+ 1 root systemd-journal 8.0M Sep 13 21:45 system.journal
-rw-r-x---+ 1 root systemd-journal 8.0M Sep 13 21:46 user-1000.journal

Last edited by unknwn (2015-09-13 18:51:53)

mauritiusdadd

Member

From: Benevento, Italy

Registered: 2013-10-27

Posts: 776

Re: journalctl log file size

Well, it seems that journald respects all the rules you have imposed: your persistent journal files occupy about 16M which respects the rule SystemMaxUse=50M and each journal file has a size of about 8M, which respects the rule SystemMaxFileSize=10M. Does journalctl reports a lower disk usage too, now?

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About me - github

-- When you have eliminated the impossible, whatever remains, however improbable, must be the truth -- Spock | Sherlock Holmes

unknwn

Member

Registered: 2008-02-02

Posts: 35

Re: journalctl log file size

It does:

journalctl --disk-usage
Archived and active journals take up 16.0M on disk.

The confusing part was that it took a few restarts until journald started to respect the rules.