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Beta Branch add tools/journald-set.sh to optimise systemd journald log memory usage in 123.09beta01

Discussion in 'Centmin Mod Github Commits' started by eva2000, Jun 11, 2020.

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  1. Jun 11, 2020 #1
    eva2000

    eva2000 Administrator Staff Member

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    add tools/journald-set.sh to optimise systemd journald log memory usage in 123.09beta01

    - ensure CentOS 7+ systemd journald logging doesn't consume more memory than available on system leading to /var partition running out of disk space or running into out of memory conditions like at https://community.centminmod.com/threads/could-not-create-lock-at-var-run-yum-pid-errno-28-no-space-left-on-device.19492/#post-82913
    - existing CentOS 7 servers with Centmin Mod 123.09beta01 or newer can do a manual cmupdate command and then run the SSH command below manually

    /usr/local/src/centminmod/tools/journald-set.sh config

    Continue reading...

    123.09beta01 branch
     
  2. Jun 11, 2020 #2
    Sunka

    Sunka Well-Known Member

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    I think everything is OK

    Code (Text):
    /usr/local/src/centminmod/tools/journald-set.sh config

journalctl --disk-usage
Archived and active journals take up 32.0M on disk.
set SystemMaxUse=179M in /etc/systemd/journald.conf
set RuntimeMaxUse=179M in /etc/systemd/journald.conf


journalctl --disk-usage
Archived and active journals take up 32.0M on disk.

change journald logging from memory based to disk based at /var/log/journal/
â— systemd-journald.service - Journal Service
   Loaded: loaded (/usr/lib/systemd/system/systemd-journald.service; static; vendor preset: disabled)
   Active: active (running) since Thu 2020-06-11 02:28:52 CEST; 2s ago
     Docs: man:systemd-journald.service(8)
           man:journald.conf(5)
 Main PID: 19521 (systemd-journal)
   Status: "Processing requests..."
   CGroup: /system.slice/systemd-journald.service
           └─19521 /usr/lib/systemd/systemd-journald

Jun 11 02:28:51 hostname systemd-journal[19521]: Runtime journal is using 32.0M (max allowed 179.0M, trying to leave 586.5M free of 3.7G available → current limit 179.0M).
Jun 11 02:28:52 hostname systemd-journal[19521]: Journal started

journalctl --disk-usage
Archived and active journals take up 32.0M on disk.
     
  3. Jun 11, 2020 #3
    eva2000

    eva2000 Administrator Staff Member

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    looks good :)
     
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