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man: document the two new journalctl commands

This commit is contained in:
Lennart Poettering 2019-04-05 18:59:25 +02:00
parent 1e187d2dd5
commit 3ff7a50d66
1 changed files with 28 additions and 12 deletions
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40
man/journalctl.xml
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@ -887,18 +887,34 @@
<varlistentry> <varlistentry>
<term><option>--flush</option></term> <term><option>--flush</option></term>
<listitem><para>Asks the journal daemon to flush any log data <listitem><para>Asks the journal daemon to flush any log data stored in
stored in <filename>/run/log/journal</filename> into <filename>/run/log/journal/</filename> into <filename>/var/log/journal/</filename>, if persistent
<filename>/var/log/journal</filename>, if persistent storage storage is enabled. This call does not return until the operation is complete. Note that this call is
is enabled. This call does not return until the operation is idempotent: the data is only flushed from <filename>/run/log/journal/</filename> into
complete. Note that this call is idempotent: the data is only <filename>/var/log/journal</filename> once during system runtime (but see
flushed from <filename>/run/log/journal</filename> into <option>--relinquish-var</option> below), and this command exits cleanly without executing any
<filename>/var/log/journal</filename> once during system operation if this has already happened. This command effectively guarantees that all data is flushed
runtime, and this command exits cleanly without executing any to <filename>/var/log/journal</filename> at the time it returns.</para></listitem>
operation if this has already happened. This command </varlistentry>
effectively guarantees that all data is flushed to
<filename>/var/log/journal</filename> at the time it <varlistentry>
returns.</para></listitem> <term><option>--relinquish-var</option></term>
<listitem><para>Asks the journal daemon for the reverse operation to <option>--flush</option>: if
requested the daemon will write further log data to <filename>/run/log/journal/</filename> and stops
writing to <filename>/var/log/journal/</filename>. A subsequent call to <option>--flush</option>
causes the log output to switch back to <filename>/var/log/journal/</filename>, see
above.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--smart-relinquish-var</option></term>
<listitem><para>Similar to <option>--relinquish-var</option> but executes no operation if the root file
system and <filename>/var/lib/journal/</filename> reside on the same mount point. This operation is
used during system shutdown in order to make the journal daemon stop writing data to
<filename>/var/log/journal/</filename> in case that directory is located on a mount point that needs
to be unmounted.</para></listitem>
</varlistentry> </varlistentry>
<varlistentry> <varlistentry>