Hello,
I am trying to seek clarity on few of journald.conf options.
This is what I have set in journald.conf.d/99-local.conf
[Journal]
# allocate maximum 100GB for all journal files combined
SystemMaxUse=100G
# But keep atleast 15% of disk space; free.
# no value specified - for default (i.e. 15%)
SystemKeepFree=
# Maximum size of one journal file should not exceed 200MB.
SystemMaxFileSize=200M
# But rotate it every week (even if size is less than 200MB)
MaxFileSec=1week
# No limit on number of journal files created (see query below)
SystemMaxFiles=0
# Keep files for 3 years. (unless MaxUse/KeepFree is crossed)
MaxRetentionSec=3year
Please let me know if settings are correct (as mentioned in annotation)
I am confused about SystemMaxUse documentation which says "each value is
capped to 4G". Does it mean that 4G is maximum I can set? i.e. maximum
space that all journal files combined will be 4G even if I set it to 100G?
I am also confused about SystemMaxFiles=0, as documentation states that
100 is default. So does setting it to ZERO set it to default i.e. 100 or
it sets to unlimited?
I do not want files to vanish after 2 years i.e. after 104 rotations.
Documentation does not state how to set it to unlimited. i.e.
SystemMaxFiles= (should mean default i.e. 100)
SystemMaxFiles=0 (should mean unlimited and not 100)
I can set it to very high value though to avoid any confution.
May be documentation needs to be little more clear?
Please guide,
Thank you
Amish.
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