fixed several of the memory leaks.
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridge CB2 3QH
-> 09/02/2012 : The Moon is Waning Gibbous (93
write back to the files.
Not, it doesn't. It just makes it easier to generate the DSpace batch
importer format.
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridge CB2 3QH
-> 10/08/2011 : The Moon is Wa
way to help with
your problem.
http://tools.dspace.cam.ac.uk/metadatamapper/
Best,
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridge CB2 3QH
-> 10/08/2011 : The Moon is Waxing Gibbous (75% of Full)
---
On Mon, 8 Aug 2011, bonface asiligwa wrote:
I have been trying to instaation of dspace on ubuntu 11.04 but i dont
succed can someone just give a step by step installation of Dspace 7.1.2
https://wiki.duraspace.org/display/DSPACE/Installing+DSpace+1.7+on+Ubuntu
--
Tom De Mulder
at over HTTPS, so it's
better to run it over plain HTTP until people log in.
Best,
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridge CB2 3QH
-> 01/08/2011 : The Moon is Waxing Crescent (9% of Full)
gards,
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridge CB2 3QH
-> 29/07/2011 : The Moon is Waning Crescent (14% of Full)
--
Got Input? Slashd
to have.
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridge CB2 3QH
-> 17/06/2011 : The Moon is Waning Gibbous (92% of Full)
--
EditLive Enterprise
changes would be needed to
the actual browse system.
Best,
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridge CB2 3QH
-> 10/05/2011 : The Moon is Waxing Crescent (46% of Full)
--
t available, so shouldn't show up)
We've put considerable work in filtering dark items from search results
(which took a lot of work, and yet was still a dirty hack) and OAI. It
would be nice to see this functionality in the main code base.
Best,
--
Tom De Mulder - Cambridge University
Dear all,
I'm attaching a dump of our PostgreSQL configuration to this email. We got some
input from Postgres developers into how best to tune for our needs, but if
someone has suggestions for things to try then we'd be happy to hear them.
Best regards,
--
Tom De Mulder -
oost for browse-related functions. It also offers another way
> of scaling-out, by putting solr on a different server.
This question I'll have to leave to Simon to answer, so I don't make a hash of
it.
university search
engine and similar services to throttle their index rate so the servers
wouldn't get overloaded.
Also of note is that the problems are mostly on the database and webapp end,
there are no problems with I/O (disk or network).
--
Tom De Mulder - Cambridge University Comput
DSpace scalability issues report, per wiki template:
1. dsp...@cambridge, The University of Cambridge, UK.
Technical contacts: Tom De Mulder, td...@cam.ac.uk (systems manager)
Simon Brown st...@cam.ac.uk (DSpace developer)
2. a. DSpace version 1.6.2 with extensive local patches, using
e time for this.
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridge CB2 3QH
--
Beautiful is writing same markup. Internet Explorer 9 supports
standards
e?
We have other systems here at the University that are much bigger, do similar
things and require far, far less in terms of resources.
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Sit
Tansley wanted to try writing
a project in Java, but I could be wrong. :)
Best,
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridge CB2 3QH
t I'm
not a specialist on this matter, and our resident DSpace developer is on leave
this week.)
I am really glad to hear from other people with problems similar to ours.
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site
f memory and crashed really quickly, so we never took it into production.
But your mileage may vary.
Best regards,
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridge CB2 3QH
--
ndom metadata for them.
After all, it doesn't matter that many bitstreams will be identical.
That is how we populated our test environment here so we could replicate the
problems we were seeing on the live system.
Best regards,
--
Tom De Mulder - Cambridge University Computing Service
, deleting a collection with 1200 items on our
rather powerful DSpace machines will take two hours, and uses most of the
available memory. You can see why I would like that no longer to be the case.
Best regards,
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New
memory leak.
There are quite a few memory leaks in DSpace. We have a cronjob to restart
Tomcat nightly, because otherwise it'll break the next day.
Best,
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridge CB2 3QH
-&
e, can anyone help
>?
They're stored in Zulu time, which has the advantage of not being
dependent on time zones or daylight savings.
The best thing to do is to store them in this timezone, but to convert
them on display to the local time.
Best,
--
Tom De Mulder - Cambridge Universi
or rather, consensus) has this to say about disallow
fields in robot.txt:
"The value of this field specifies a partial URL that is not to be
visited. This can be a full path, or a partial path; any URL that starts
with this value will not be retrieved."
Note the "starts wi
t; corresponds to the SSL cipher suites which are enabled.
Have you tried following the SSL Howto? It may address your problem:
http://tomcat.apache.org/tomcat-6.0-doc/ssl-howto.html
Best regards,
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site,
-
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridge CB2 3QH
-> 19/01/2010 : The Moon is Waxing Crescent (24% of Full)
--
Throughout its 18-year hist
I think
your handle server may indeed not be running at all.
Best,
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridge CB2 3QH
-> 11/01/2010 : The Moon is Wanin
/
Thanks,
--
Tom De Mulder - Cambridge University Computing Service
-> 09/12/2009 : The Moon is Waning Gibbous (52% of Full)
--
Return on Information:
Google Enterprise Search pays you back
Get the facts.
http://p.sf.n
/metadatamapper/
Best regards,
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridge CB2 3QH
-> 18/09/2009 : The Moon is Waning Crescent (7% of F
ver, this is easily done outside the webapp.
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridge CB2 3QH
-> 17/04/2009 : The Moon is Waning Gibbous (54% of Full)
--
aken this approach with other things as well, such as our
thumbnails (which aren't using the DSpace code, because we wanted to
separate something as user-interface-centric as that from the actual
archive contents; the DSpace code was also just too slow and just crashed
our server).
Bes
n't have to reinstall all of the web frontend. How that's done is
something that depends on your Fedora installation, and I can't give you
specifics.
Best,
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridg
in almost all cases.
Best,
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridge CB2 3QH
-> 20/02/2009 : The Moon is Waning Crescent (38% of Full)
--
O
ith
file locking where deleted filehandles don't get recovered properly.
best,
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridge CB2 3QH
-> 2
ut not item or bitstreams, and still
get indexed.
DSpace 1.x has major scalability issues, alas. No matter how much hardware
you throw at it.
Best,
--
Tom De Mulder - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridge CB2 3QH
-> 14/01/2009
worked. Sorry
not to be able to give you a solution, but there's an explicit check in
the code that only lets admins change bitstreams.
This same problem is causing us a lot of trouble, too.
Best,
--
Tom De Mulder <[EMAIL PROTECTED]> - Cambridge University Computing Service
-> 0
our users are really fed up with this, but it's such a mess to sort out
properly.
--
Tom De Mulder <[EMAIL PROTECTED]> - Cambridge University Computing Service
-> 23/09/2008 : The Moon is Waning Gibbous (53% of Full)
--
big (non-transparent) watermarks all over the images or documents.
Which of course might render them useless.
--
Tom De Mulder <[EMAIL PROTECTED]> - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street, Cambridge CB2 3QH
-> 16/04/2008 : The Moon i
cope with Shibboleth and our local single signon
system... I was just hoping that 1.5 would get us started further along
that route. :-)
Thanks for the response,
--
Tom De Mulder <[EMAIL PROTECTED]> - Cambridge University Computing Service
+44 1223 3 31843 - New Museums Site, Pembroke Street
authz problems occur;
it would be better if everything used the ResourcePolicy rather than the
columns on the collection table.
Any reason why they can't be dropped for this release?
Best,
--
Tom De Mulder <[EMAIL PROTECTED]> - Cambridge University Computing Service
+44 1223 3 318
86731 files and directories in
our assetstore, and it takes O(hours) just to build the filesystem tree.
Dump isn't always an option - not every filesystem has dump, and we run
different filesystems on backup and live servers anyway.
--
Tom De Mulder <[EMAIL PROTECTED]> - Cambridge Unive
erformance-related issues, such as they exist. My current concerns
lie far more with the authentication/authorization system...
For reference, our webapp runs on a dual, dual-core CPU machine with 8GB
of memory, with the database on a separate (similar, but with very fast
disk) machine. The a
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