strange problem with RRD graphs
list Alessandro Tinivelli
hi, i have installed the lastest stable release of xymon (previously using hobbit) and added my old config files, then added some new host to be monitored and all ok for a few days. Suddenly today i've added a new host on bb-hosts, all was working fine except that all the graps reported values of "nan". Tried to remove, then delete with drop host command with no solution. Then i tried to monitor another host -my own pc, just ping test-, added to bb-hosts and got a bad suprise: same problem: graphs reporting "nan". The strange fact is that all other "old" host has good graphs still reading and showing correct data. Please help :) thanks in advance. Alessandro
list Steve Holmes
On Wed, Sep 29, 2010 at 12:40 PM, Alessandro Tinivelli <
▸
user-f57e46de7c58@xymon.invalid> wrote:
hi, i have installed the lastest stable release of xymon (previously using hobbit) and added my old config files, then added some new host to be monitored and all ok for a few days. Suddenly today i've added a new host on bb-hosts, all was working fine except that all the graps reported values of "nan". Tried to remove, then delete with drop host command with no solution. Then i tried to monitor another host -my own pc, just ping test-, added to bb-hosts and got a bad suprise: same problem: graphs reporting "nan". The strange fact is that all other "old" host has good graphs still reading and showing correct data. Please help :) thanks in advance. Alessandro
For how long have you waited for the new graphs to behave? Sometimes it takes a few cycles (1 cycle = 5 to 10 minutes). I've seen it take 20 or 30 minutes for the icons to show up on the web page. Even then there might not be enough history for a graph to be meaningful (resulting in NaN) for a couple of cycles. Steve -- The test of a democracy is not the magnificence of buildings or the speed of automobiles or the efficiency of air transportation, but rather the care given to the welfare of all the people. -Helen Adams Keller, lecturer and author (1880-1968) Truth never damages a cause that is just. -Mohandas Karamchand Gandhi (1869-1948)
list Alessandro Tinivelli
▸
For how long have you waited for the new graphs to behave? Sometimes it takes a few cycles (1 cycle = 5 to 10 minutes). I've seen it take 20 or 30 minutes for the icons to show up on the web page. Even then there might not be enough history for a graph to be meaningful (resulting in NaN) for a couple of cycles.
Steve
thank you Steve; well, sometimes the stressed guy gets in an hurry and takes wrong decisions... probably i did not wait enough time before getting worried and i made some more damage... Now i have just restored the server to this early morning state, graphs seem broken (values from clients are recieved but not displayed in graphs) but it's better to go home and let things go: tomorrow i will see and decide what to do. ale