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From "Supun Kamburugamuva" <supu...@gmail.com>
Subject Re: Max call of service
Date Tue, 19 Aug 2008 09:06:36 GMT
Hi Michael,

By looking at your code it seems that it doesn't lead to a memory leak.
Every time that function is called the object will be created and when the
function finishes execution the object will be destroyed. I think there is
another memory leak in your code. But I doubt that your problem is a result
of a memory leak. Can you please send your log file?

Supun..

On Tue, Aug 19, 2008 at 1:47 PM, Michael Sutter
<Michael.Sutter@ipe.fzk.de>wrote:

>  Hello Supun,
>
> sorry for that. The stack is not created by me. It is the normal program
> run-time stack from the service and the
> object is not created as a global variable.
>
> The code looks like this:
> adb_getStatusResponse_t *
> axis2_skel_DAQStatus_getStatus(const axutil_env_t *env)
>  {
>   try {
>     FdDaq fd_daq;
>   }
>   catch (...) {
>   }
>   return return_node;
> }
>
> where fd_daq is the object.
>
> Kind regards
> Michael
>
> Supun Kamburugamuva wrote:
>
> Hi Michail,
>
> The stack the you mentioned is little bit confusing. Is it the stack in a
> normal process run-time or a stack that you have created? If it is the stack
> in a normal program run-time where are you creating your object in the code?
> Are you creating the object as a global variable?
>
> Thanks,
> Supun..
>
> On Tue, Aug 19, 2008 at 1:18 PM, Michael Sutter <Michael.Sutter@ipe.fzk.de
> > wrote:
>
>> Hello list,
>>
>> I have a problem with a Axis2 service and need some input if my service is
>> developed the right
>> way. Inside my service I make a call to a external library. So I make a
>> variable of the object and
>> put it on the stack. So normally the instance should be destroyed when the
>> scope is lost. I think
>> this is done when the execution of the service is finished and the output
>> is given back to the client.
>> Am I right?
>>
>> By doing this I had a strange problem. The mentioned service is called
>> every 10 sec to give a state
>> to the client. First I was running the service in Axis2 version 1.4 and
>> get about every two hours an
>> AxisFault: Too many open files. So I think that the destructor of my
>> variable was not called and that
>> I have memory leaks. After that I integrated a log message in the
>> destructor to see, if it is called.
>> Normally my service is running inside an Apache installation and I never
>> saw the output of the log
>> message.
>>
>> Nevertheless if I run the service in axis simple server I see the log
>> output and so I think the implementation
>> of my service is correct. When running the service inside the axis simple
>> server I also get AxisFault,
>> but after about 12 - 14 hours runtime. After searching the mailing list I
>> found, that there is a memory
>> leak in the mod_axis apache modul. So I compiled Axis2 from SVN and the
>> service is running for about
>> 17 hours without any problem.
>>
>> So to my question: Have I done something wrong in the implementation of my
>> service by putting the instance
>> on the stack and not explicitly calling the destructor or could it be that
>> the SVN version fixes the problem?
>> Nevertheless, why I'm getting the message by running the service inside
>> the axis simple server, where I
>> see that the destructor is called?
>>
>> Kind regards
>> Michael
>>
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>>
>
>
> --
> Software Engineer, WSO2 Inc
>
>


-- 
Software Engineer, WSO2 Inc

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