SSDN - How to increase JVM Heap Size?

XML Editor

Sign Up

Search

Options

Chat

Help

News

Log in

Not Logged in

Topic

Topic Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Adam Russ

Subject: How to increase JVM Heap Size?
Author: Adam Russ
Date: 28 Jul 2011 09:26 AM
Originally Posted: 28 Jul 2011 09:25 AM

Hello,

Trying to run an XSL on a big XML (8GB) gives me a java heap error.
I tried increasing the heap size using " -Xms512m -Xmx32768m " both in JVM parameters and External JVM parameter and I got an error "Cant connect to JVM". Eclipse has no problems using "-Xms512m -Xmx32768m" so the problem is with Stylus.

How can I increase the heap size?

Thanks

Ivan Pedruzzi

Subject: How to increase JVM Heap Size?
Author: Ivan Pedruzzi
Date: 28 Jul 2011 05:54 PM

Hi Adam,

Which Stylus Studio version are you running?
Which Java Virtual Machine?

if the JVM fails to initialize you should see a message like the one attached

Could you share a screenshot when the error comes up?

Thanks for your help
Ivan

Adam Russ

Subject: How to increase JVM Heap Size?
Author: Adam Russ
Date: 28 Jul 2011 06:34 PM

Hi Ivan,

Stylus Home 2011
1756a
Java 1.6

Ivan Pedruzzi

Subject: How to increase JVM Heap Size?
Author: Ivan Pedruzzi
Date: 28 Jul 2011 10:03 PM

It looks like the JVM did not load at all.

I fear something is wrong in the parameter values

Could you share a screenshot of JVM settings -> JRE parameters?

Thanks
Ivan

Adam Russ

Subject: How to increase JVM Heap Size?
Author: Adam Russ
Date: 29 Jul 2011 06:40 AM

Hello Ivan,

These are the standard:

-Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8000

And these are what I have:

-Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8000 -Xms512m -Xmx32768m

Ivan Pedruzzi

Subject: How to increase JVM Heap Size?
Author: Ivan Pedruzzi
Date: 30 Jul 2011 01:07 AM

Does the JVM start with just the initial value -Xms512m?

Adam Russ

Subject: How to increase JVM Heap Size?
Author: Adam Russ
Date: 31 Jul 2011 04:28 AM

Yes.

Is this because stylus is 32bit? cause the eclipse is 32bit too and works fine.

Kurt Wald

Subject: How to increase JVM Heap Size?
Author: Kurt Wald
Date: 27 Oct 2011 02:12 PM

For a 32bit JVM max heap size is around 1.5 GB. The actual max varies and may be tested increasing -Xmx fom 1500m manually until this error appears. No 32bit process can claim more than 2GB (in this case at least including the JVM itself) under Windows.

Adam Russ

Subject: How to increase JVM Heap Size?
Author: Adam Russ
Date: 11 Dec 2011 08:04 AM

OK thank you.

1. So how do you suggest I handle big XML files?
2. Is there a 64-bit stylus version?
3. What is your suggestion if I require 4-8GB Heap?

Thank you.

Ivan Pedruzzi

Subject: How to increase JVM Heap Size?
Author: Ivan Pedruzzi
Date: 12 Dec 2011 02:36 PM

Stylus Studio is only available as x86 32 bit.

You could try to generate the Java code and run the transformation from the command line using a 64 bit JVM.

A better solution would be to re-design the XSLT to make it run in streaming fashion, if possible.

If you share the transformation with us (at stylussupport@ivitechnologies.com) we will take a look and offer suggestions.

Hope this helps
Ivan Pedruzzi
Stylus Studio Team

Topic Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Powered by Stylus Studio, the world's leading XML IDE for XML, XSLT, XQuery, XML Schema, DTD, XPath, WSDL, XHTML, SQL/XML, and XML Mapping!

Go to Conference:

Log In Options Username: Password:

Site Map | Privacy Policy | Terms of Use | Trademarks

Stylus Studio® and DataDirect XQuery ™are from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2016 All Rights Reserved.