[wxqc] Something horrible happened (again) at 0735 UTC today

[Steve Dimse]

On Jan 8, 2006, at 9:09 PM, Philip Gladstone wrote:

> I got a major spike this morning at 0735. I also got a humidity  
> reading (which is a bit of a suprise since my humidity sensor is  
> still on my lab bench).
>
> I suspect that I got given some other person's readings for that  
> one slot this morning.

There is the interaction between two problems here. There is a  
problem with findU and its feed during the wee hours. There is  
nightly maintenance that must occur to keep the database size down to  
a "reasonable" 87 GB. Hopefully once I get the new server running in  
a load-share configuration this will go away. You can see the missing  
data by comparing the plots of the primary and secondary servers:


http://www.findu.com/cgi-bin/wxpage.cgi?call=cw0003&last=12

http://www2.findu.com/cgi-bin/wxpage.cgi?call=cw0003&last=12

it shows most clearly in the wind data. Note that there is no spike  
in either plot, and note that the raw data on both servers never  
shows any report for humidity, or any outlying temperature values:

http://www.findu.com/cgi-bin/rawwx.cgi?call=cw0003

http://www2.findu.com/cgi-bin/rawwx.cgi?call=cw0003

Blame findU for the missing data, but not for the spikes you are  
seeing...

Steve K4HG