[xwiki-dev] Possible memory leak ?

[Youcef.Bey at imag.fr]

Hi Arnaud,

I faced this problem before. 

The importation of huge data need the configuration of java parameters of the
heap. I was not able to import and create 300000 documents - without object -
until I changed the following parameters : 

 -Xms512m -Xmx521m  (you could add or change them in startup.bat in windows or
catalina.sh on linux).

These parameters depends on your machine. Then you can increase (-->1024) or
decrease them (1024).

Hope this will solve your problem.

Cheers.
-----------
Youcef Bey 

Quoting Arnaud Thimel <thimel at codelutin.com>:

> Hi all,
> 
> For a particular project, I have a plugin that reads data from an 
> external database using some JDBC queries.
> For each row of my JDBC ResultSet, the plugin creates an XWiki document, 
> the associated objects, and fill these objects.
> 
> All is running fine except that I have around 50.000 objects to import :-D.
> Then I get a Java Heap Space exception.
> 
> I re-re-re-re-re-read my source code, I don't keep any reference to the 
> documents created.
> Every 200 document creation, I do the following calls :
> 
>                     context.getWiki().flushCache();
>                     context.getWiki().getStore().cleanUp(context);
>                     System.gc();
> 
> Anyway, the amount of memory used doesn't go down after flushing the caches.
> And I still get my Heap Space exception.
> 
> Does anybody has an idea for me ?
> Who thinks that I could be a XWiki memory leak ?
> 
> Thanks,
> 
> -- 
> Arnaud Thimel
> Société Code Lutin - http://www.codelutin.com
> 
> 
> 




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