X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=blobdiff_plain;f=doc%2Frrdinfo.pod;h=d147756c90be9e873c81983cd835b063f14dfa26;hp=e83d8d6138279af4e4fbd9eb4b38b494357a3e9e;hb=596355adbe6bbedc736543e7735c2adfeccd7b7e;hpb=5fc7ff89bdbced9c593c566fea9840a269935dcd

diff --git a/doc/rrdinfo.pod b/doc/rrdinfo.pod
index e83d8d6..d147756 100644
--- a/doc/rrdinfo.pod
+++ b/doc/rrdinfo.pod
@@ -4,7 +4,8 @@ rrdinfo - extract header information from an RRD
 
 =head1 SYNOPSIS
 
-B<rrdtool> B<info> I<filename.rrd>
+B<rrdtool> B<info> I<filename>
+S<[B<--daemon> I<address>]>
 
 =head1 DESCRIPTION
 
@@ -14,6 +15,23 @@ a parsing friendly format.
 Check L<rrdcreate> if you are uncertain about the meaning of the
 individual keys.
 
+=over 8
+
+=item I<filename>
+
+The name of the B<RRD> you want to examine.
+
+=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.
+For a list of accepted formats, see the B<-l> option in the L<rrdcached> manual.
+
+ rrdtool info --daemon unix:/var/run/rrdcached.sock /var/lib/rrd/foo.rrd
+
+=back
+
 =head1 EXAMPLE
 
 This is the output generated by running B<info> on a simple RRD which
@@ -27,6 +45,7 @@ data sources.
  rrd_version = "0001"
  step = 300
  last_update = 955892996
+ header_size = 2872
  ds[a].type = "GAUGE"
  ds[a].minimal_heartbeat = 600
  ds[a].min = NaN
@@ -48,11 +67,18 @@ data sources.
  rra[0].cdp_prep[1].value = nan
  rra[0].cdp_prep[1].unknown_datapoints = 0
 
-=over 8
+=head1 ENVIRONMENT VARIABLES
 
-=item I<filename.rrd>
+The following environment variables may be used to change the behavior of
+C<rrdtoolE<nbsp>info>:
 
-The name of the B<RRD> you want to examine.
+=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