Philip Peake wrote: >>What value does your source have when it comes back online ? >> >>I'd still suggest modifying your script(s) to log the update values >>to a text file - it will help enormously if you can provide a set of >>update statements that replicates the problem. Without that we are >>guessing, and you've already "changed the story" as I was assuming >>your were immediately storing real values after the reset (and >>wondering why the zeros before the spike). >> > >No change -- someone didn't read the original post, which includes >an example of the type of data seen: > >>What I see if I look back over the data is a sequence looking like this >>(simplified, with thee data sources): >> >>T1 1000 1004 997 >>T2 1010 1020 1003 >>T3 NaN Nan NaN >>T4 NaN NaN NaN >>T5 0 0 0 >>T6 0 0 0 >>T7 0 0 0 >>T8 4E6 4E6 4E6 >>T9 15 12 10
Yes I read the original post - but you didn't say that you put the zeros there -and I was wondering where on earth they came from. >Just to be clear, they way it works is: > >* Read fails - substitute a 'U' for the data. >* Mark data source as down. >* Schedule re-connect to data source for five minutes in the future. > >In 30 second loop: > >* For each data source, read value. if a DS is marked down, substitute zero. > >So when a DS goes down, we will get a NaN, followed by a string of >zeros, until the DS comes back online. >At that point, the value actually read will be sent to the DB. > >Here is the actual DB content: <snip> I don't want to see what's in the database. Please provide a set of update values that reproduce the problem. If we don't know what went in, then we cannot even guess at whether what comes out is correct or not. -- Simon Hobson Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed author Gladys Hobson. Novels - poetry - short stories - ideal as Christmas stocking fillers. Some available as e-books. _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
