Yesterday Un L'Unique wrote: > > > Some data sundenly gone... > > While searching what happend to my "lost data" I discover something strange: > 1) it is possible to fetch NaN data prior to creation base or --start time > eg rrdtool fetch --start 19900101 pebble_Cpu.rrd AVERAGE > > 2) rrdtool dump generate xml file containing very old ( 1997) NaN data. > > Bug or misunderstanding ?
Well, mrtg contains a datastore of constant lenght. If you define an RRA of 2 years length, and have a start time of "now" the 'newest' data in the RRA will be 'now' and the 'oldest' from two years ago ... as rrdtool does not know the data from 2 years ago it is set to 'unknown' cheers tobi > > Un > > > -- > Unsubscribe mailto:[EMAIL PROTECTED] > Help mailto:[EMAIL PROTECTED] > Archive http://www.ee.ethz.ch/~slist/rrd-users > WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi > > -- ______ __ _ /_ __/_ / / (_) Oetiker, ETZ J97, ETH, 8092 Zurich, Switzerland / // _ \/ _ \/ / phoneto:+41(0)1-632-5286 faxto:+41(0)1-632-1517 /_/ \.__/_.__/_/ [EMAIL PROTECTED] http://google.com/search?q=tobi -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
