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Re: problems programmatically downloading http://www.w3.org/2004/02/skos/core

From: Ivan Herman <ivan@w3.org>
Date: Sun, 31 Oct 2010 09:24:39 +0100
Cc: Semantic Web <semantic-web@w3.org>
Message-Id: <476CD1A5-771A-4BB1-B652-71B814523CE5@w3.org>
To: Jeremy Carroll <jeremy@topquadrant.com>

On Oct 29, 2010, at 20:21 , Jeremy Carroll wrote:

> Actually the problem has passed ... it was strange.
> 

Jeremy,

the W3C server was under some sort of a spyware attack the past few days (I do not know the technical details). That meant that the servers at MIT behaved erratically (including, eg, most of our wiki sites). I would think that was the reason for this, too.

Ivan



> 
> On 10/29/2010 11:11 AM, Jeremy Carroll wrote:
>> 
>> Hi
>> 
>> we have a regular maintenance job written in Java where we cache various rdf files off the web including
>>            "http://www.w3.org/2006/vcard/ns", ok
>>            "http://www.w3.org/2000/01/rdf-schema",  ok
>>            "http://www.w3.org/2004/02/skos/core",   *500
>>            "http://www.w3.org/2008/05/skos-xl", ?
>>            "http://www.w3.org/TR/owl-guide/wine.rdf", *500
>>            "http://www.w3.org/TR/owl-guide/food.rdf", *500
>> 
>> The marked files have recently started giving us 500 responses - is this intended behavior? (Like it is with DTDs)
>> http://www.w3.org/blog/systeam/2008/02/08/w3c_s_excessive_dtd_traffic
>> Are other people impacted?
>> 
>> 
>> 
>> 
>> 
>> Do we have a workaround other than to manually download and cache ourselves
>> How does it know that we are running a java client - how many headers would I need to fake before it will give me the file?
>> 
>> Reading the above link - actually I will try setting the UserAgent to be "TopQuadrant's cache builder for TopBraid Suite"
>> it is only run internally by us.
>> I will update here in a bit as to whether that helps
>> 
>> Jeremy
>> 
> 
> 


----
Ivan Herman, W3C Semantic Web Activity Lead
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Received on Sunday, 31 October 2010 08:23:52 UTC

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