On Thursday 29 January 2004 02:16, Alex van den Bogaerdt wrote: > On Wed, Jan 28, 2004 at 07:46:04PM -0600, Anders Nygren wrote: > > What I am planning to do is > > 1, "normal" data collection, and storing the data in rrdtool > > 2, a separate process that periodically, (after the update), gets the > > latest values from rrdtool and does threshold checks for generating > > alarms. > > Inbetween (1) and (2), time will move forward. > > If 't' is T modulo R, time _could_ go from (t+n) to (t) and you will > be looking at the wrong interval. This won't happen often however it > is possible and it is something to take care of.
But in (2) I will know the time used in the update, so I can use the same time in the fetch. That would work, right? > > rrdtool report <file> <CF> --resolution <R> --start <T> --end <T> > > where <T> is the most recent time that is an integer multiple of <R>. > > Do you mean fetch where you write report, or do I need to brush up > on my rrdtool knowledge? Yes, of course, I meant fetch, or possibly xport if I need to do some calculations on the data. /Anders -- 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
