- From: Mark Nottingham <mnot@mnot.net>
- Date: Wed, 28 Apr 2010 09:59:17 +1000
- To: Jonathan Rees <jar@creativecommons.org>
- Cc: www-tag@w3.org
I checked a few random DC purls: http://redbot.org/?uri=http%3A%2F%2Fpurl.org%2Fdc%2Fdcmitype%2FImage http://redbot.org/?uri=http%3A%2F%2Fpurl.org%2Fdc%2Felements%2F1.1%2F http://redbot.org/?uri=http%3A%2F%2Fpurl.org%2Fdc%2Fterms%2F ... and it seems like all of them are served stale, so most caches won't use them. It seems like this is PURL's fault, not necessarily clients'. Cheers, On 28/04/2010, at 4:05 AM, Jonathan Rees wrote: > Please attach to ISSUE-58 (scalabilityOfURIAccess-58) > -Jonathan > > ---------- Forwarded message ---------- > From: Thomas Baker <tbaker@tbaker.de> > Date: Tue, Apr 27, 2010 at 1:03 PM > Subject: Re: [pedantic-web] Missing DC property definitions? > To: pedantic-web@googlegroups.com > > On Tue, Apr 27, 2010 at 05:23:49PM +0100, Antoine Zimmermann wrote: >> Actually, the problems comes from purl.org, which is not accessible at >> the moment. [UPDATE: it was not accessible a few minutes ago] >> This is not the first time it happens. >> Now it works again, and your file validates without any warning. > > See an interesting thread starting at [1], where Dave Wood says: > > On Friday, 26 March, Ian Davis (CTO of Talis) reported that > purl.org was rejecting some requests to Dublin Core PURLs > [1]. I asked OCLC to increase the number of threads used > by their PURL server and the maximum number of concurrent > connections. They complied this afternoon. > > At the time of the failures, OCLC reported that purl.org > was rejecting between 20 and 60 requests per second for > DC terms [2]. > > It would seem that Linked Data clients are becoming more > prevalent and that some of them are not particularly > well behaved. Perhaps we need to raise awareness of the > importance of caching. > > Tom > > [1] https://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=ind1003&L=DC-ARCHITECTURE&P=29894 > > -- > Tom Baker <tbaker@tbaker.de> > > -- > Subscription settings: > http://groups.google.com/group/pedantic-web/subscribe?hl=en > -- Mark Nottingham http://www.mnot.net/
Received on Tuesday, 27 April 2010 23:59:50 UTC