+=item B<-j> I<dir>
+
+Write updates to a journal in I<dir>. In the event of a program or system
+crash, this will allow the daemon to write any updates that were pending
+at the time of the crash.
+
+On startup, the daemon will check for journal files in this directory. If
+found, all updates therein will be read into memory before the daemon
+starts accepting new connections.
+
+The journal will be rotated with the same frequency as the flush timer
+given by B<-f>. On clean shutdown, the journal files are removed.
+