[Building Sakai] Hibernate DocType DTD files and slow Sakai startups

[Robert Sedzik]

Hi all,

*Ray:* I would appreciate if you could check this today because our
Sakai has seemed to gone bad
this Friday. We will probably have to release a hot patch or something
to fix this problem.
That is, assuming that it is the DocType thing that ha happened on Friday.

We are also running Sakai in a JBoss. Would you think that is the culprit?
I mean Sakai is more or less a Tomcat app.

*Botimer:* As we are not the only ones that have this problem then it is
safe to say that his is
a problem. Maybe it is a Jboss thing until we hear of the same problem
from a Tomcat
installation.

Cheers,
Rob


On 19-Aug-13 4:35 AM, Raymond Naseef wrote:
> Hi Rob,
>
> When working for Michigan State University, we ran into the same or
> very similar issue with Hibernate configuration and mapping files in
> early 2012 (these are the same files you mention).  I do not recall
> write now what changes in our system caused the problem, but I know
> how we fixed the problem.  We modified the !DOCTYPE in similar manner
> as your message indicates.
>
> This did require us to update ALL the hbm.xml & cfg.xml files.  We
> copied Hibernate files to our domain and pointed to those, instead
> of http://hibernate.sourceforge.net/.  I have note here stating the
> change was done so JBoss could access those securely, removing access
> to the external URL.
>
> If I find out something more about this, I will let you know.
>
>
> Good luck!
> -Ray
>
>
>
>
> On Fri, Aug 16, 2013 at 11:13 AM, Noah Botimer <botimer at umich.edu
> <mailto:botimer at umich.edu>> wrote:
>
>     I personally have not seen this problem, but I just recently
>     updated all the files in trunk for the Hibernate upgrade. They
>     were using the older sourceforge.net <http://sourceforge.net> URLs
>     and are now use hibernate.org <http://hibernate.org>. There are a
>     ton of them and I don't think we want to change their format.
>
>     I did not think that these were retrieved externally. Can you
>     confirm (maybe by hosts file entry or tcpdump) whether the
>     connections are going out?
>
>     If they are, there may be a way to use something like URIResolver
>     or EntityResolver.
>
>     Thanks,
>     -Noah
>
>     On Aug 16, 2013, at 8:18 AM, Robert Sedzik wrote:
>
>     > Hi all,
>     >
>     > We have every now and then problems with Sakai startup.
>     > I am not sure we have nailed the problem but it seems
>     > related to hibernate hbm files DOCTYPE.
>     >
>     > Is it as if hibernate tries to fetch the dtd files externally
>     and the whole
>     > Sakai startup stalls or takes a very long time.
>     >
>     > Is it correct that hibernate tries to get the dtd files supplied by
>     > the doctype in hbm files firstly from the classpath and then from
>     > an external source?
>     >
>     > Then what exactly is happening that hibernate cannot pick it up
>     on class
>     > path and goes
>     > externally?
>     >
>     > We have looked into some solutions for this and one we found would
>     > require use to change
>     > the doctype parts
>     >
>     > From:
>     >
>     > <!DOCTYPE hibernate-mapping PUBLIC
>     > "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
>     > "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
>     >
>     > To:
>     >
>     > <!DOCTYPE hibernate-configuration SYSTEM
>     > "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
>     > "classpath://org/hibernate/hibernate-configuration-3.0.dtd">
>     >
>     > Would this have to be done for all hbm files?
>     >
>     > What about the hibernate.cfg.xml file?
>     >
>     > Rob
>     >
>     >
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