Serge wrote:
Hello Pete
We use our own wget batch file, rather long and complicated, do all
the following (and more)
uses gzip
only download if the server file is newer
uses lock file
test if lock too old (>60') and eventualy deletes it (in case of a
reboot before deleting the lock, for example)
retry download if the .gz file is corrupted or if it didnt test good
by snf2check
email detailed result
not sure how long it will take us to move to CURL
Our server is in GMT time zone with NO daylight saving
So the issue has to be a bug in sniffer, not, as you say, "a bug in
the getRulebase batch file"
Can we expect a quick fix/patch ?
Actually -- the bug is in the way WGet is called in the old
getRulebase.cmd script. SNFServer ("sniffer") compares the timestamp of
the file reported by the server with the timestamp reported by the local
OS. So---
When wget is called the old way it would not retain our server's
timestamp and would instead use the local timestamp. As a result, if the
local time is not at DST (our server is) then the file on our server
would always look newer --or at least for an hour. As a result when
SNFServer checks to see if a newer file is available it will find one
and trigger the download script again.
The time shifting problem in the previous getRulebase.cmd script has
been known for a while but has been benign in most cases.
We moved to CURL because it is simpler (it handles the gzip part
internally).
If your script using wget does preserve the servers timestamp for the
file then you should have no problem.
We are also putting some measures in place on the delivery server to
mitigate the DST issue since most folks will not "get the message" to
update their delivery script for some time.
Best,
_M
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