rrdlastupdate - Man Page
Return the most recent update to an RRD
Synopsis
rrdtool lastupdate filename [--daemon|-d address]
Description
The lastupdate function returns the UNIX timestamp and the value stored for each datum in the most recent update of an RRD.
- filename
The name of the RRD that contains the data.
- --daemon|-d address
Address of the rrdcached daemon. If specified, a
flush
command is sent to the server before reading the RRD files. This allows 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 -l option in the rrdcached manual.rrdtool lastupdate --daemon unix:/var/run/rrdcached.sock /var/lib/rrd/foo.rrd
Environment Variables
The following environment variables may be used to change the behavior of rrdtool lastupdate
:
- RRDCACHED_ADDRESS
If this environment variable is set it will have the same effect as specifying the
--daemon
option on the command line. If both are present, the command line argument takes precedence.
Author
Andy Riebs <andy.riebs@hp.com>