_R_R_D_D_U_M_P(1)                           rrdtool                          _R_R_D_D_U_M_P(1)

NNAAMMEE
     rrddump - dump the contents of an RRD to XML format

SSYYNNOOPPSSIISS
     rrrrddttooooll   dduummpp   _f_i_l_e_n_a_m_e_._r_r_d  [_f_i_l_e_n_a_m_e_._x_m_l]  [----hheeaaddeerr|--hh {none,xsd,dtd}]
     [----nnoo--hheeaaddeerr|--nn] [----ddaaeemmoonn|--dd _a_d_d_r_e_s_s] [> _f_i_l_e_n_a_m_e_._x_m_l]

DDEESSCCRRIIPPTTIIOONN
     The dduummpp function writes the contents of an RRRRDD in human readable  (?)  XML
     format  to  a file or to stdout. This format can be read by rrdrestore. To‐
     gether they allow you to transfer your files from one computer architecture
     to another as well to manipulate the contents of an RRRRDD file in a  somewhat
     more convenient manner.

     _f_i_l_e_n_a_m_e_._r_r_d
             The name of the RRRRDD you want to dump.

     _f_i_l_e_n_a_m_e_._x_m_l
             The  (optional)  filename that you want to write the XML output to.
             If not specified, the XML will be printed to stdout.

     ----hheeaaddeerr|--h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.

     ----nnoo--hheeaaddeerr|--nn
             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 cannot deal with xml headers.

     ----ddaaeemmoonn|--dd _a_d_d_r_e_s_s
             Address of the rrdcached daemon. If specified, a "flush" command is
             sent  to  the server before reading the RRD files. This allows rrrrdd‐‐
             ttooooll to return fresh data even if the daemon is configured to cache
             values for a long time.  When specified the RRD filename  signifies
             a server side file, but the output (XML) filename refers to the lo‐
             cal side.  For a list of accepted formats, see the --ll option in the
             rrdcached manual.

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

EEXXAAMMPPLLEESS
     To transfer an RRD between architectures, follow these steps:

     1.  On  the  same system where the RRD was created, use rrrrddttooooll dduummpp to ex‐
         port the data to XML format.

     2.  Transfer the XML dump to the target system.

     3.  Run rrrrddttooooll rreessttoorree to  create  a  new  RRD  from  the  XML  dump.  See
         rrrrddrreessttoorree for details.

EENNVVIIRROONNMMEENNTT VVAARRIIAABBLLEESS
     The  following  environment variables may be used to change the behavior of
     "rrdtool dump":

     RRRRDDCCAACCHHEEDD__AADDDDRREESSSS
         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.

AAUUTTHHOORR
     Tobias Oetiker <tobi@oetiker.ch>

1.10.0                             2026-05-23                         _R_R_D_D_U_M_P(1)
