- files are kept as
- history. <varname>SystemMinFileSize=</varname>
- and
- <varname>RuntimeMinFileSize=</varname>
- control how large individual journal
- files grow at minimum. Defaults to
- 64K. Specify values in bytes or use
- K, M, G, T, P, E as units for the
- specified sizes. Note that size limits
- are enforced synchronously to journal
- files as they are extended, and need
- no explicit rotation step triggered by
- time.</para></listitem>
+ files are kept as history. Specify
+ values in bytes or use K, M, G, T, P,
+ 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.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>MaxFileSec=</varname></term>
+
+ <listitem><para>The maximum time to
+ store entries in a single journal
+ file, before rotating to the next
+ one. Normally time-based rotation
+ should not be required as size-based
+ rotation with options such as
+ <varname>SystemMaxFileSize=</varname>
+ should be sufficient to ensure that
+ journal files don't grow without
+ bounds. However, to ensure that not
+ too much data is lost at once when old
+ journal files are deleted it might
+ make sense to change this value from
+ the default of one month. Set to 0 to
+ turn off this feature. This setting
+ takes time values which may be
+ suffixed with the units year, month,
+ week, day, h, m to override the
+ default time unit of
+ seconds.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>MaxRetentionSec=</varname></term>
+
+ <listitem><para>The maximum time to
+ store journal entries. This
+ controls whether journal files
+ containing entries older then the
+ specified time span are
+ deleted. Normally time-based deletion
+ of old journal files should not be
+ required as size-based deletion with
+ options such as
+ <varname>SystemMaxUse=</varname>
+ should be sufficient to ensure that
+ journal files don't grow without
+ bounds. However, to enforce data
+ retention policies it might make sense
+ to change this value from the
+ default of 0 (which turns off this
+ feature). This setting also takes
+ time values which may be suffixed with
+ the units year, month, week, day, h, m
+ to override the default time unit of
+ seconds. </para></listitem>
+ </varlistentry>
+
+
+ <varlistentry>
+ <term><varname>SyncIntervalSec=</varname></term>
+
+ <listitem><para>The timeout before syncing journal
+ data to disk. After syncing journal files have
+ OFFLINE state. Default timeout is 5 minutes.
+ </para></listitem>
~ianmdlvl / elogind.git / blobdiff