On Dec 5, 2008, at 11:23 AM, Ajdin Brandic wrote:
Sergiu
Xwiki would not start with heap size more than 1.6gb, I've attempted this. I'll try the other option you've suggested although I do not know how to load sql dump into HSQLDB? I've you have any suggestions please advise.
One warning: You should definitely not use HSQLDB for anything more than demo purpose. It's not a production database. Thanks -Vincent
I searched web for 2 days looking for answers to this question and all I found was JAVA_OPTS and CATALINA_OPTS suggestions. I have not seen any ware your comment on "handling attachment consumes about 27 time the size of the attachment". It was probably some ware out there but I missed it. Maybe you should include it on the Import/Export page http://platform.xwiki.org/xwiki/bin/view/AdminGuide/ImportExport
Thank you for your response, at least I know where the issue is.
Ajdin
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Sergiu Dumitriu Sent: 05 December 2008 10:14 To: XWiki Users Subject: Re: [xwiki-users] Java Heap Space, Out of memory exception
Ajdin Brandic wrote:
Hi All
I am having a problem uploading a xar file. I get "Java Heap Space, Out of memory exception" (full message below).
I've downloaded the latest version of XWiki for windows xp (beginner's
version with HSQLDB & Jetty).
In my start_xwiki.bat I have set "set JAVA_OPTS=-Xmx1600m -Xms512m". 1.6gb is the maximum as xwiki would not start if I go over this.
I don't think I have CATALINA.bat any ware so I din not find where to set CATALINA_OPTS.
I have changed file upload size to 133MB by going to http://localhost:8080/xwiki/bin/edit/XWiki/XWikiPreferences? editor=obj ec t and changing Maximum Upload Size:.
The .xar file is 90MB downloaded as backup from http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/Main/ WebHome. I do not know what version this runs on since it is on one of the xwiki farm things :-).
I have Win XP with 3.5gb memory available.
Has anyone had this error recently?
This is a major design flaw of the current attachment storage model. As stated in a previous mail, handling attachment consumes about 27 time the size of the attachment, so 90M * 27 ~= 2.5G. This needs to be fixed ASAP. In the meantime, you can either increase the heap size to more than 2.5G, or request an sql dump from the myxwiki farm admins.
-- Sergiu Dumitriu