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

[Raymond Naseef]

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> 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 URLs and are now use 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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