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man pages section 1: User Commands

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Updated: Wednesday, February 10, 2021

rrddump (1)


rrddump - dump the contents of an RRD to XML format


rrdtool dump filename.rrd [filename.xml] [--header|-h {none,xsd,dtd}]
[--no-header|-n] [--daemon|-d address] [> filename.xml]


RRDDUMP(1)                          rrdtool                         RRDDUMP(1)

       rrddump - dump the contents of an RRD to XML format

       rrdtool dump filename.rrd [filename.xml] [--header|-h {none,xsd,dtd}]
       [--no-header|-n] [--daemon|-d address] [> filename.xml]

       The dump function writes the contents of an RRD in human readable (?)
       XML format to a file or to stdout. This format can be read by
       rrdrestore. Together they allow you to transfer your files from one
       computer architecture to another as well to manipulate the contents of
       an RRD file in a somewhat more convenient manner.

               The name of the RRD you want to dump.

               The (optional) filename that you want to write the XML output
               to.  If not specified, the XML will be printed to stdout.

       --header|-h {none,xsd,dtd}
               By default RRDtool will add a dtd header to the xml file. Here
               you can customize this to and xsd header or no header at all.

               A shortcut for --header=none.

               If you want to restore the dump with RRDtool 1.2 you should use
               the --no-header option since 1.2 can not deal with xml headers.

       --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 dump --daemon unix:/var/run/rrdcached.sock /var/lib/rrd/foo.rrd

       To transfer an RRD between architectures, follow these steps:

       1.  On the same system where the RRD was created, use rrdtool dump to
           export the data to XML format.

       2.  Transfer the XML dump to the target system.

       3.  Run rrdtool restore to create a new RRD from the XML dump. See
           rrdrestore for details.

       The following environment variables may be used to change the behavior
       of "rrdtool dump":

           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.

       Tobias Oetiker <tobi@oetiker.ch>

       See attributes(7) for descriptions of the following attributes:

       |Availability   | image/rrdtool    |
       |Stability      | Uncommitted      |
       This software was built from source available at
       https://github.com/oracle/solaris-userland.  The original community
       source was downloaded from

       Further information about this software can be found on the open source
       community website at http://oss.oetiker.ch/rrdtool/.

1.5.4                             2015-11-10                        RRDDUMP(1)