It creates another parser. The problem is, with DocBook nested includes,
this means I may have 4 or 5 parsers going at once, each one launched
within a start element event for xsl:include or xsl:import of the calling
parser.
I need to do more homework here to see where the memory is going during the
DocBook stylesheet build. But the fact that I have to create parsers on
the fly is also an issue with being able to simply hand in a parser to
Xalan which it can use... I'll have to see if I can clone the running
parser. So I thought I would check if you had any brainstorms about this
issue in general.
-scott
"Ted Leung"
<[EMAIL PROTECTED] To: <[EMAIL PROTECTED]>
ia.com> cc: (bcc: Scott Boag/CAM/Lotus)
Subject: Re: xalan crashes with
docbook
01/21/00
07:53 PM
Please
respond to
xerces-dev
If you are using SAX, the tables should be reclaimed at the
end of the parse. What does Xalan currently do when it hits an
xsl:include
or xsl:import?
Ted
----- Original Message -----
From: "Scott Boag/CAM/Lotus" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, January 21, 2000 3:16 PM
Subject: Re: xalan crashes with docbook
>
> Do you think that large tables are being made per instance?
>
> What do you do for external parsed entities? Is there a way I could fake
> it out into thinking xsl:include & xsl:import is a parsed entity?
>
> -scott
>
>
>
>
>
> "Ted Leung"
> <[EMAIL PROTECTED] To:
<[EMAIL PROTECTED]>
> ia.com> cc: (bcc: Scott
Boag/CAM/Lotus)
> Subject: Re: xalan crashes
with docbook
> 01/21/00
> 06:10 PM
> Please
> respond to
> xerces-dev
>
>
>
>
>
>
> You definitely cannot re-enter the same parser instance while
> another thread is executing inside it. I don't see an easy solution
> other than new'ing a separate parser instance.
>
> ----- Original Message -----
> From: "Scott Boag/CAM/Lotus" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Thursday, January 20, 2000 7:00 PM
> Subject: Re: xalan crashes with docbook
>
>
> >
> > > unless the document is just
> > > pathologically deeply nested
> >
> > The DocBook stylesheets are pretty pathologically nested.
> >
> > > (or circular of course :-) Do you try to catch
> > > circular references?
> >
> > Yes. (Unless there is a bug...)
> >
> > We need to do more analysis on this to see how many parsers are parsing
> at
> > a time. I really only worried about per-instance memory overhead for
> > tables and the like. For the moment, only the Java version concerns
me.
> >
> > -scott
> >
> >
> >
> >
> >
> > [EMAIL PROTECTED]
> > .com To:
> [EMAIL PROTECTED]
> > cc: (bcc: Scott
> Boag/CAM/Lotus)
> > 01/20/00 Subject: Re: xalan crashes
> with docbook
> > 02:53 PM
> > Please
> > respond to
> > xerces-dev
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > For the C++ version, this should be ok. You can just create new parsers
> to
> > handled nested parses. You are only limited by the virtual memory on
the
> > machine. Definitely you cannot reuse the parser at that point though,
so
> > you will have to create new parsers for each nested include. They
aren't
> > all that terribly big in the C++ version really. They aren't trivial,
but
> > they aren't big enough to worry about it unless the document is just
> > pathologically deeply nested (or circular of course :-) Do you try to
> catch
> > circular references? Its done within the parser for referenced
entities,
> > but you'd have to do it yourself for any kinds of references you parse
> > yourself.
> >
> > ----------------------------------------
> > Dean Roddey
> > Software Weenie
> > IBM Center for Java Technology - Silicon Valley
> > [EMAIL PROTECTED]
> >
> >
> >
> > "Scott Boag/CAM/Lotus" <[EMAIL PROTECTED]> on 01/20/2000 11:41:42 AM
> >
> > Please respond to [EMAIL PROTECTED]
> >
> > To: Steve Fisher <[EMAIL PROTECTED]>
> > cc: Robert [EMAIL PROTECTED], xalan-dev@xml.apache.org,
> > [EMAIL PROTECTED]
> > Subject: Re: xalan crashes with docbook
> >
> >
> >
> >
> > Yes, Rob has reproduced it. My theory right now is that the recursive
> > includes in docbook are causing multiple parsers to be created, since
the
> > parser is not reentrant, and the parsers are likely to have some big
> > tables. Rob said that he could run docbook files by boosting the
memory
> in
> > the vm.
> >
> > We have this posted as an SPR (Software Problem Report), but it will
take
> > some time to resolve.
> >
> > Xerces folks: the problem is that I'm handling xsl:include while I'm in
> the
> > middle of a SAX parse, and I don't think the currently executing parser
> is
> > reentrant at that point. Do you have any ideas on how this might be
> > resolved?
> >
> > The other thing I might be able to try is to post a stack of the
> > xsl:includes and xsl:imports as the processing occurs, and then process
> > those stylesheets after the primary parse is completed... i.e. try to
> build
> > the stylesheets sequentially, instead of recursivly. I'll have to look
> > into how feasible this is.
> >
> > -scott
> >
> >
> >
> >
> >
> > Steve Fisher
> > <[EMAIL PROTECTED] To: Scott Boag/CAM/Lotus
> > <[EMAIL PROTECTED]>
> > l.ac.uk> cc:
> > Subject: Re: xalan crashes
> > with docbook
> > 01/20/00
> > 01:16 PM
> >
> >
> >
> >
> >
> >
> > On Fri, 14 Jan 2000, Scott Boag/CAM/Lotus wrote:
> >
> > >
> > > OK, I'll take a look at this. I wasn't aware of any problems with
> > docbook.
> > > The error is occuring during the build of the stylesheet, and looks
to
> be
> > a
> > > genuine out of memory error, so I'm a bit surprised.
> > >
> > > -scott
> > >
> > > Steve Fisher
> >
> > > <[EMAIL PROTECTED] To:
> xalan-dev@xml.apache.org
> >
> > > l.ac.uk> cc: (bcc: Scott
> > Boag/CAM/Lotus)
> > > Subject: xalan crashes
> with
> > docbook
> > > 01/14/00
> >
> > > 02:28 PM
> >
> >
> > Did you get anywhere with this out of memory condition? - can you
> > reproduce the error?
> >
> > Steve
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
>
>
>
>
