X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=man%2Fjournald.conf.xml;h=a814ec1ec3570212f4c2a5fba07a1de67787940d;hp=b161b34e4ed2d2301ab4bff2a1831c8c76ee57a4;hb=3c8fa0fd0f99996088e42c5d48e164fdae4ada40;hpb=409dee2e44e7dc73d6bf00d782938e4cb4105f5b diff --git a/man/journald.conf.xml b/man/journald.conf.xml index b161b34e4..a814ec1ec 100644 --- a/man/journald.conf.xml +++ b/man/journald.conf.xml @@ -130,15 +130,15 @@ by journalctl1's - command), forward secure sealing (FSS) + command), Forward Secure Sealing (FSS) for all persistent journal files is enabled. FSS is based on Seekable + url="https://eprint.iacr.org/2013/397">Seekable Sequential Key Generators by - G. A. Marson and B. Poettering and - may be used to protect journal files - from unnoticed - alteration. + G. A. Marson and B. Poettering + (doi:10.1007/978-3-642-40203-6_7) + and may be used to protect journal files + from unnoticed alteration. @@ -155,7 +155,7 @@ into the system journal. If uid, any user ID will get his own journal files - regardless whether it belongs to a + regardless of whether it belongs to a system service or refers to a real logged in user. If none, journal files @@ -250,21 +250,35 @@ SystemMaxUse= and RuntimeMaxUse= control how much disk space the - journal may use up at - maximum. Defaults to 10% of the size - of the respective file - system. SystemKeepFree= - and + journal may use up at maximum. + SystemKeepFree= and RuntimeKeepFree= - control how much disk space the - journal shall always leave free for - other uses if less than the disk space - configured in - SystemMaxUse= and - RuntimeMaxUse= is - available. Defaults to 15% of the size - of the respective file - system. SystemMaxFileSize= + control how much disk space + systemd-journald shall leave free for + other uses. + systemd-journald + will respect both limits and use the + smaller of the two values. + + The first pair defaults to 10% + and the second to 15% of the size of + the respective file system. If the + file system is nearly full and either + SystemKeepFree= or + RuntimeKeepFree= is + violated when systemd-journald is + started, the value will be raised to + percentage that is actually free. This + means that if there was enough + free space before and journal files were + created, and subsequently something + else causes the file system to fill + up, journald will stop using more + space, but it will not be removing + existing files to go reduce footprint + either. + + SystemMaxFileSize= and RuntimeMaxFileSize= control how large individual journal @@ -282,10 +296,10 @@ E as units for the specified sizes (equal to 1024, 1024²,... bytes). Note that size limits are enforced - synchronously when journal files - are extended, and no explicit - rotation step triggered by - time is needed. + synchronously when journal files are + extended, and no explicit rotation + step triggered by time is + needed. @@ -349,9 +363,17 @@ SyncIntervalSec= - The timeout before synchronizing journal - data to disk. After syncing, journal files have - the OFFLINE state. Default timeout is 5 minutes. + The timeout before + synchronizing journal files to + disk. After syncing, journal files are + placed in the OFFLINE state. Note that + syncing is unconditionally done + immediately after a log message of + priority CRIT, ALERT or EMERG has been + logged. This setting hence applies + only to messages of the levels ERR, + WARNING, NOTICE, INFO, DEBUG. The + default timeout is 5 minutes. @@ -377,7 +399,10 @@ systemd.journald.forward_to_kmsg= and systemd.journald.forward_to_console=. - + When forwarding to the console, the + TTY to log to can be changed + with TTYPath=, + described below.