I don't think that I am hitting the same problem because this happens without rebooting. I am just starting the processes manually at the moment, and the clock is never being shifted ahead by years. It also appears that the data is being collected without any problem, just generating the graph is slow.
Willard Christian Magnusson wrote: > Hi Willard, > > I have seen this before actually... and I think I know the reason as well... > The problem seem to occur during these circumstances: > > You have a new installed box and reboot it. > Owfs-processes is started > Temploggerd is started. It scans the 1-wire bus and creates the html-files > and rrd-files. > Temploggerd is now working good without any long delays. > Time is set to correct date by ntpclient. (From year 2000 to 2008) > Temploggerd is now hanging since all rrdtools are taking extremely long > time. > It seems like rrdtool has problem to rotate away old data from year 2000 and > insert new values created year 2008. > > I have managed to "solve" the hanging by: > kill-temploggerd > rm /path/temperature.rrd > run-temploggerd > > Try to make sure the date is correct before starting temploggerd in the > rc-scripts. Eg. The clock should not only be set in a cronjob. > Ntpclient has to be called before temploggerd's rc-startup script. > > Can you verify if you have stumbled into the same problem as I have > experienced before. > > /Christian > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Willard > Korfhage > Sent: den 17 januari 2008 05:37 > To: OWFS Developers List > Subject: [Owfs-developers] rrdtool takes extremely long time to generate > images for temploggerd on NSLU2 running Debian > > I put owfs and temploggerd on an NSLU2 running Debian 4.0r2. Owfs is > working, but I couldn't get any of the temploggerd web pages. I traced > the problem down to the rrdtool graph function, and for certain > parameters it takes a terribly long time to generate pages. Temploggerd > generates a cgi file that has an RRD::GRAPH tag to generate the graph > image, and that includes instructions to print out the average, min, max > and last. I ran the equivalent by running "rddtool graph" by hand, > printing out only the max. It turns out that a graph that includes > > PRINT:2629A880000000tempe:MAX:"%5.1lf C" > > makes it take 37 minutes to generate the image. If I remove that > instruction, it takes 5.7 seconds to generate the image. I tried the > version of rrdtools installed by aptitude (1.2.15), and even compiled > the latest (1.2.26), and both act the same. > > Interestingly enough, the print directives work fine on my NSLU2 unit > running Unslung 6.8. Some difference between big- and little-ending > versions? > > Willard > ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Owfs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/owfs-developers
