rrddump(1) [suse man page]
RRDDUMP(1) rrdtool RRDDUMP(1) NAME
rrddump - dump the contents of an RRD to XML format SYNOPSIS
rrdtool dump filename.rrd [filename.xml] [--header|-h {none,xsd,dtd}] [--no-header] [--daemon address] > filename.xml DESCRIPTION
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. filename.rrd The name of the RRD you want to dump. filename.xml 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. --no-header 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 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 EXAMPLES
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. ENVIRONMENT VARIABLES
The following environment variables may be used to change the behavior of "rrdtool dump": 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
Tobias Oetiker <tobi@oetiker.ch> 1.4.3 2009-10-14 RRDDUMP(1)
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RRDINFO(1) rrdtool RRDINFO(1) NAME
rrdinfo - extract header information from an RRD SYNOPSIS
rrdtool info filename [--daemon address] DESCRIPTION
The info function prints the header information from an RRD in a parsing friendly format. Check rrdcreate if you are uncertain about the meaning of the individual keys. filename The name of the RRD you want to examine. --daemon 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 info --daemon unix:/var/run/rrdcached.sock /var/lib/rrd/foo.rrd EXAMPLE
This is the output generated by running info on a simple RRD which contains two data sources and one RRA. Note that the number after the last_update keyword is in seconds since 1970. The string NaN stands for *UNKNOWN* data. In the example it means that this RRD has neither minimum nor maximum values defined for either of its data sources. filename = "random.rrd" rrd_version = "0001" step = 300 last_update = 955892996 header_size = 2872 ds[a].type = "GAUGE" ds[a].minimal_heartbeat = 600 ds[a].min = NaN ds[a].max = NaN ds[a].last_ds = "UNKN" ds[a].value = 2.1824421548e+04 ds[a].unknown_sec = 0 ds[b].type = "GAUGE" ds[b].minimal_heartbeat = 600 ds[b].min = NaN ds[b].max = NaN ds[b].last_ds = "UNKN" ds[b].value = 3.9620838224e+03 ds[b].unknown_sec = 0 rra[0].cf = "AVERAGE" rra[0].pdp_per_row = 1 rra[0].cdp_prep[0].value = nan rra[0].cdp_prep[0].unknown_datapoints = 0 rra[0].cdp_prep[1].value = nan rra[0].cdp_prep[1].unknown_datapoints = 0 ENVIRONMENT VARIABLES
The following environment variables may be used to change the behavior of "rrdtool info": 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
Tobias Oetiker <tobi@oetiker.ch> 1.4.8 2013-05-23 RRDINFO(1)