The second issue, where AWrong:%c:strftime gives the epoch (IE, time 0) is because the AVERAGE operator in a VDEF does not set the time component �C after all, what should it set it to? The MAX and MIN operators set the time component to the time of the peak in question, but AVG doesn’t have any specific point in time, hence it is not set (or rather, it is set to zero).
For the first issue, I’m not sure why this should be; you should be getting ‘10’ or ‘0’, if I read it correctly. It might help to give more details �C the DEF statement, the rrdinfo for the RRD file in question, and the version of RRDtool you’re using. Steve _____ Steve Shipway ITS Unix Services Design Lead University of Auckland, New Zealand Floor 1, 58 Symonds Street, Auckland Phone: +64 (0)9 3737599 ext 86487 DDI: +64 (0)9 923 6487 Mobile: +64 (0)21 753 189 Email: <mailto:s.ship...@auckland.ac.nz> s.ship...@auckland.ac.nz P Please consider the environment before printing this e-mail : 打印本邮件， 将减少一棵树存活的机会 From: rrd-users-bounces+s.shipway=auckland.ac...@lists.oetiker.ch [mailto:rrd-users-bounces+s.shipway=auckland.ac...@lists.oetiker.ch] On Behalf Of John huysing Sent: Monday, 12 August 2013 12:53 p.m. To: rrd-users@lists.oetiker.ch Subject: [rrd-users] Detecting and handling unknown data After look at the CDEF tutorial http://oss.oetiker.ch/rrdtool/tut/cdeftutorial.en.html and reading the section on handling unknown data I thought I would try this to see if I could detect if had unknown data in a rrd, so i could process it differently If its unknown set the value to 10 else set to 0 CDEF:wrong=currTot,UN,10,0,IF VDEF:Wrong=wrong,MAXIMUM VDEF:AWrong=wrong,AVERAGE PRINT:Wrong:%5.2lf ----> returns inf PRINT:AWrong:%5.2lf ----> returns a value The 2nd problem is when I try this PRINT:AWrong:%c:strftime I always get the start of unix time ....1970 John
smime.p7s
Description: S/MIME cryptographic signature
_______________________________________________ rrd-users mailing list rrd-users@lists.oetiker.ch https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
