Imported upstream SVN snapshot 1.4~rc2+20090928.

[pkg-rrdtool.git] / doc / rrdlastupdate.1

diff --git a/doc/rrdlastupdate.1 b/doc/rrdlastupdate.1
index dc8f59c5ab7cb7624d937567021180442f44701e..d79e1af7c71d2335915f750f9a4e096f83d6bf13 100644 (file)
--- a/doc/rrdlastupdate.1
+++ b/doc/rrdlastupdate.1
@@ -1,4 +1,4 @@
-.\" Automatically generated by Pod::Man 2.1801 (Pod::Simple 3.05)
+.\" Automatically generated by Pod::Man 2.1801 (Pod::Simple 3.08)
 .\"
 .\" Standard preamble:
 .\" ========================================================================
@@ -124,7 +124,7 @@
 .\" ========================================================================
 .\"
 .IX Title "RRDLASTUPDATE 1"
-.TH RRDLASTUPDATE 1 "2008-03-15" "1.3.8" "rrdtool"
+.TH RRDLASTUPDATE 1 "2009-06-09" "1.3.999" "rrdtool"
 .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
 .\" way too many mistakes in technical documents.
 .if n .ad l
@@ -134,6 +134,7 @@ rrdlastupdate \- Return the most recent update to an RRD
 .SH "SYNOPSIS"
 .IX Header "SYNOPSIS"
 \&\fBrrdtool\fR \fBlastupdate\fR \fIfilename\fR
+[\fB\-\-daemon\fR\ \fIaddress\fR]
 .SH "DESCRIPTION"
 .IX Header "DESCRIPTION"
 The \fBlastupdate\fR function returns the \s-1UNIX\s0 timestamp and the 
@@ -141,6 +142,25 @@ value stored for each datum in the most recent update of an \s-1RRD\s0.
 .IP "\fIfilename\fR" 8
 .IX Item "filename"
 The name of the \fB\s-1RRD\s0\fR that contains the data.
+.IP "\fB\-\-daemon\fR \fIaddress\fR" 8
+.IX Item "--daemon address"
+Address of the rrdcached daemon. If specified, a \f(CW\*(C`flush\*(C'\fR command is sent
+to the server before reading the \s-1RRD\s0 files. This allows \fBrrdtool\fR 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 \fB\-l\fR option in the rrdcached manual.
+.Sp
+.Vb 1
+\& rrdtool lastupdate \-\-daemon unix:/var/run/rrdcached.sock /var/lib/rrd/foo.rrd
+.Ve
+.SH "ENVIRONMENT VARIABLES"
+.IX Header "ENVIRONMENT VARIABLES"
+The following environment variables may be used to change the behavior of
+\&\f(CW\*(C`rrdtool\ lastupdate\*(C'\fR:
+.IP "\fB\s-1RRDCACHED_ADDRESS\s0\fR" 4
+.IX Item "RRDCACHED_ADDRESS"
+If this environment variable is set it will have the same effect as specifying
+the \f(CW\*(C`\-\-daemon\*(C'\fR option on the command line. If both are present, the command
+line argument takes precedence.
 .SH "AUTHOR"
 .IX Header "AUTHOR"
 Andy Riebs <andy.riebs@hp.com>