On 04/20/2011 11:53 PM, [email protected] wrote:
> Hello,
>
> are there any other Java settings I could adjust in order to make my
> xwiki instance more stable?

If you encounter specific problems, please report them.

Generally, we noticed that the performance gets better when:
- increasing the size of the caches according to the available memory
- setup two or more virtual machines in a clustering configuration

> We are currently 50 to 60 users and have a total of 5.000 to 8.000 pages
> and a lot of attachments (mostly PDF -- approx. 4MB each)
>
> Thanks for your help,
> Stephanie
>
>
> Zitat von Sergiu Dumitriu <[email protected]>:
>
>> On 04/20/2011 12:41 AM, [email protected] wrote:
>>> Hello again,
>>>
>>> this time I am having a hard time with java. I do get the following
>>> error a lot:
>>>
>>> - Exception while dispatching incoming RPC call
>>> #012java.lang.OutOfMemoryError: PermGen space
>>>
>>> And there isn't anybody on the wiki yet. It's just me changing texts.
>>> No uploads or something similar.
>>>
>>> Here are my arguments which Tomcat 5.5 pass to the virtual machine
>>> JAVA_OPTS="-Djava.awt.headless=true -Xms1024M -Xmx3424M"
>>>
>>> In my opinion this should be more then enough memory or am I mistaken?
>>> Do I miss something else? I am really lost here....
>>
>> The OOM you get is not on heap space, but on PermGen, which is used for
>> storing java classes. You configure that with:
>>
>> -XX:MaxPermSize=128m


-- 
Sergiu Dumitriu
http://purl.org/net/sergiu/
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