On 06/03/2012 07:12, Rainer Frey wrote:
> 
> On 05.03.2012, at 14:14, Philippe ROUXEL wrote:
> 
>>>> When I set JAVA_OPTS= -Xmx1024m -Xss75m
>>>
>>> That means: each thread get a stack of 75MB. One of the following applies:
>>> * the operating system has a limit on thread stack size
>>> * the per process memory limit is reached before all initial tomcat threads 
>>> are started
>>> * the system runs out of total memory before all initial tomcat threads are 
>>> started
>>>
>>> 75MB thread stack size seems quite insane, the default is around 1-2MB. 
>>> Perhaps you meant to set -Xms (which sets the initial Java heap size)?
>> 75MB of stack is needed by hibenate to save the data aka a graph.
> 
> I haven't used hibernate personally, but I never heard anything like that. So 
> please elaborate. Where did you get that information?
> Also what do you mean with "graph"? The graph of associated objects that are 
> updated by one hibernate call, or is your data actually graph data?
> If so, how is that mapped? do you have any self-referential associations?
> Is it really stack that you are talking about?

I'm also interested in the answers to these questions.


p



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