RRDtool
rrdpythonSYNOPSISimport rrdtool rrdtool.create('/tmp/test.rrd', 'DS:foo:GAUGE:20:0:U') DESCRIPTIONThe rrdtool functions are directly callable via the Python programming language. This wrapper implementation has been written from the scratch (without SWIG) The API expects strings and/or a list of strings as parameters to the functions. Please refer to the other rrdtool documentation for functions and valid arguments. EXAMPLESExample 1import sys sys.path.append('/path/to/rrdtool/lib/python2.6/site-packages/') import rrdtool, tempfile DAY = 86400 YEAR = 365 * DAY fd,path = tempfile.mkstemp('.png') rrdtool.graph(path, '--imgformat', 'PNG', '--width', '540', '--height', '100', '--start', "-%i" % YEAR, '--end', "-1", '--vertical-label', 'Downloads/Day', '--title', 'Annual downloads', '--lower-limit', '0', 'DEF:downloads=downloads.rrd:downloads:AVERAGE', 'AREA:downloads#990033:Downloads') info = rrdtool.info('downloads.rrd') print info['last_update'] print info['ds[downloads].minimal_heartbeat'] Example 2import sys sys.path.append('/path/to/rrdtool/lib/python2.6/site-packages/') import rrdtool # in real life data_sources would be populated in loop or something similar data_sources=[ 'DS:speed1:COUNTER:600:U:U', 'DS:speed2:COUNTER:600:U:U', 'DS:speed3:COUNTER:600:U:U' ] rrdtool.create( 'speed.rrd', '--start', '920804400', data_sources, 'RRA:AVERAGE:0.5:1:24', 'RRA:AVERAGE:0.5:6:10' ) If you use the site-python-install make target you can drop to first sys.path.append line since the RRDtool module will be available everywhere. If RRDtool runs into trouble, it will throw an exception which you might want to catch. SEE ALSOrrdcreate, rrdupdate, rrdgraph, rrddump, rrdfetch, rrdtune, rrdlast, rrdxport, rrdinfo AUTHORHye-Shik Chang <perky@i18n.org> Alan Milligan <alan.milligan@last-bastion.net> |
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02/04/2019 | Hye-Shik Chang | OETIKER+PARTNER AG
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