On 1/7/13 11:29 PM, "[email protected]"  wrote:

> Am 08.01.2013 07:40, schrieb Al Varnell:
>> I feel confident that it is not that the diffs haven't made it out to the
>> mirrors yet, but that they are no longer there because the mirrors only
>> retain diffs for a given amount of time.
> 
> I just found 75 diffs for daily.cvd on my mirror. This should be enough
> but it should be no problem for the mirror-cordinators to increase the
> number of files.
> 
75, thanks, that's what I needed to know.  That number used to last a couple
of weeks when there were only a half dozen diffs a day, but now it's
considerably less than that.

>>  The only occurrence when I saw
>> this on my machine was after it had been down for five days over the
>> Christmas holiday.  In my case I do two updates a day and my network
>> reliability is very good, so at most I only need to download about twenty
>> diff files.  The users that have been experiencing this have needed 80 to
>> 100 diffs to become current.  Part of the reason is the holidays and at
>> least one seems to be experiencing network issues that complicate his setup.
> 
> This may be a reason but there seems something more not working as
> expected. According to your hint due to the limited diffs, i checked my
> logs for 404-errors. And i found a lot!
> 
> Usually freshclam should get the latest .cvd if some diffs are missing
> on the server. But i found something like:
> 
> GET /daily-16436.cdiff HTTP/1.0" 200
> GET /daily-13811.cdiff HTTP/1.0" 404
> 
> The second connect was made 8 hours after the first one. Both were
> comming from the same ip and regarding to the user-agent it was the same
> user. I see no reason to download 13811 when 16436 is allready downloaded.
> 
I agree, but none of the examples I have show that to be happening here.
They were all looking for the next one needed and failing if it had already
been purged.

> I think, it`s more a dns-problem (freshclam checks for updates by dns)
> than anything else. A few months ago i had some trouble when checking
> the current version of clamav by dns.
> 
I see a few DNS failures, but they tend to be the ISP's fault.  Switching to
a public DNS usually fixes things.


-Al-
 
-- 
Al Varnell
Mountain View, CA



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