X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=doc%2Frrdlast.pod;h=ecec65a949df966f8b416259ec4bf0548249e0bc;hb=ac630adec930653637199258efd99024d49325c7;hp=a3eb7feedf10289cafa5ee7dfb579200de94dd94;hpb=e4acaa789385e98fe979cd48cb0fb1ddc8570b91;p=rrdtool.git

diff --git a/doc/rrdlast.pod b/doc/rrdlast.pod
index a3eb7fe..ecec65a 100644
--- a/doc/rrdlast.pod
+++ b/doc/rrdlast.pod
@@ -5,6 +5,7 @@ rrdlast - Return the date of the last data sample in an RRD
 =head1 SYNOPSIS
 
 B<rrdtool> B<last> I<filename>
+S<[B<--daemon> I<address>]>
 
 =head1 DESCRIPTION
 
@@ -17,6 +18,32 @@ update of the RRD.
 
 The name of the B<RRD> that contains the data.
 
+=item B<--daemon> I<address>
+
+Address of the L<rrdcached> daemon. If specified, a C<flush> command is sent
+to the server before reading the RRD files. This allows B<rrdtool> to return
+fresh data even if the daemon is configured to cache values for a long time. To
+specify a UNIX domain socket use the prefix C<unix:>, see example below. Other
+addresses are interpreted as normal network addresses, i.E<nbsp>e. IPv4 or IPv6
+addresses in most cases.
+
+ rrdtool last --daemon unix:/var/run/rrdcached.sock /var/lib/rrd/foo.rrd
+
+=back
+
+=head1 ENVIRONMENT VARIABLES
+
+The following environment variables may be used to change the behavior of
+C<rrdtoolE<nbsp>last>:
+
+=over 4
+
+=item B<RRDCACHED_ADDRESS>
+
+If this environment variable is set it will have the same effect as specifying
+the C<--daemon> option on the command line. If both are present, the command
+line argument takes precedence.
+
 =back
 
 =head1 AUTHOR