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From simon.el...@free.fr
Subject RE: Core dumps in Axis libraries
Date Thu, 06 Mar 2008 10:49:43 GMT
Hi,
running valgrin tool on (httpd or axis_http_server) may help you to find the
reason on the core (valgrind.org).

Regards
Simon

Quoting Raghavendra SM <raghav@aylus.com>:

> Thanks,
>
> As suggested, I tried using axis2c-1.3.0 both with and without
> --enable-guthilla=yes. But I still see different dumps consistently.
> Please find the attached file with back-traces.
>
> Are you using the same service client instance from multiple threads?
> >>> We have a axis thread pool with default number of threads and a set
> of our own threads(about 10, lets call them "database threads").
> + On receiving a HTTP soap request, axis thread invokes the appropriate
> function that is bound to our logic.
> + Now, the axis thread requests a "database thread" to perform the
> appropriate query and waits on a condition variable.
> + our "db thread" performs the necessary query and signals on that
> condition variable so that axis thread shall take the control over.
> + axis thread will create the om output and dispatch as usual.
>
> My doubts:
> + does this design has any apparent drawback when there is a flurry of
> back-to-back soap requests?
> + Is there a need to increase the axis thread pool size? If yes, how to
> do it?
> + As told before, the dump is seen during a particular scenario only.
> i.e: while trying to add a list of already existing users to my
> database. For each user there is a SOAP request generated and the
> requests are sequential, i.e the second request is sent only after the
> response for previous request is received.
> + if I increase the log level of my own module that uses axis2c, there
> is no dump. On increasing the log level, my module writes quite a bit of
> information to my log file.
>
> Your help is appreciated.
>
> Thanks & Regards,
> ~raghav
>
>
> -----Original Message-----
> From: Samisa Abeysinghe [mailto:samisa@wso2.com]
> Sent: Wednesday, March 05, 2008 7:25 PM
> To: Apache AXIS C User List
> Subject: Re: Core dumps in Axis libraries
>
> Raghavendra SM wrote:
> > Thanks Manjula,
> >
> > But thats not a viable option for us. We would still want to continue
> > using axis2C-1.0 for some more time.
> >
> > Are these dumps well known?
>
> No.
>
> Are you using the same service client instance from multiple threads?
>
> Samisa...
>
>
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>
>
>



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