Re: [Dspace-tech] Illegal argument exception
>> In the last few days I've been getting errors like this:
>>
>> -- URL Was: http://deepblue.lib.umich.edu/dspace/handle/2027.42/31692
>>[..]
>> Exception:
>> java.lang.IllegalArgumentException: 2 Dec 2007 03:08:59 GMT at
>>
org.apache.catalina.connector.HttpRequestBase.getDateHeader(HttpRequestB
>> ase.java:860)
>
> My guess (and it is only a guess!) is that the date format being sent
by
> the crawler is incorrect, so Tomcat burps and spits it out.
We've also seen these since a few days back. HandleServlet.java does
this when the exception strikes:
long modSince = request.getDateHeader("If-Modified-Since");
So what happens is that the crawler is using an invalid
if-modified-since parameter in the http request.
Now, our Tomcat doesn't seem to be creating any access logs (shouldn't
it?) so I can't check the source IP of this request.
One odd thing is that the "URL Was:" section in the error mail I get is
missing the port number. I.e it shows
http://hostname/dspace/handle/xxx/yyy rather than
http://hostname:port/dspace/handle/xxx/yyy which is the only way our
DSpace can be acccessed since it's not listening to port 80. Probably
just a small bug in request.getRequestURL().toString() used by
storeOriginalURL but that's not very comforting..
best regards
Mathias Hjelt
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Re: [Dspace-tech] Illegal argument exception
Hi Jose, > In the last few days I've been getting errors like this: > > -- URL Was: http://deepblue.lib.umich.edu/dspace/handle/2027.42/31692 > -- Method: GET > -- Parameters were: > > Exception: > java.lang.IllegalArgumentException: 2 Dec 2007 03:08:59 GMT > at > org.apache.catalina.connector.HttpRequestBase.getDateHeader(HttpRequestB > ase.java:860) > at > > I looked at the logs file and I don't see anything out of the normal > going on. It looks like crawling from google. When I try the URL, it > works fine. Any ideas what could be causing this? My guess (and it is only a guess!) is that the date format being sent by the crawler is incorrect, so Tomcat burps and spits it out. It works for your browser as your browser is sending a valid date format. What is being sent is: 2 Dec 2007 03:08:59 GMT According to RFC 1123 Section 5.2.14, the date stamp is supposed to be formatted to the RFC 822 date specification (Section 5) except for the use of a 4 digit year. So comparing the spec with what was sent, it looks likes it is upset because there is no 'day' (e.g. Mon / Tue / Wed etc) component. It should perhaps read: Sun 2 Dec 2007 03:08:59 GMT But as I said, it is only a guess, and I might be way off the mark. Cheers, Stuart _ Gwasanaethau Gwybodaeth Information Services Prifysgol Aberystwyth Aberystwyth University E-bost / E-mail: [EMAIL PROTECTED] Ffon / Tel: (01970) 622860 _ - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ DSpace-tech mailing list DSpace-tech@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dspace-tech
[Dspace-tech] Illegal argument exception
In the last few days I've been getting errors like this: -- URL Was: http://deepblue.lib.umich.edu/dspace/handle/2027.42/31692 -- Method: GET -- Parameters were: Exception: java.lang.IllegalArgumentException: 2 Dec 2007 03:08:59 GMT at org.apache.catalina.connector.HttpRequestBase.getDateHeader(HttpRequestB ase.java:860) at I looked at the logs file and I don't see anything out of the normal going on. It looks like crawling from google. When I try the URL, it works fine. Any ideas what could be causing this? Thanks, Jose - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ DSpace-tech mailing list DSpace-tech@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dspace-tech
