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From "Konstantin Kolinko" <knst.koli...@gmail.com>
Subject Re: Remote debugging via shmem, Tomcat as a service
Date Sat, 13 Sep 2008 01:44:39 GMT
2008/9/12 Bryan D. Fish <bfish@security-works.com>:
> I'm trying to get remote debugging working with Tomcat using a shared memory
> connection.  I've been calling it remote debugging but the server and debug
> client (my IDE) are on the same host.
>
> Everything works well when I start Tomcat from the command line
> (bin/startup.bat).  I have the following JAVA_OPTIONS set in my environment
> variables:
>
> -Xdebug -Xrunjdwp:transport=dt_shmem,address=jdbconnect,server=y,suspend=n
>
> I can connect to the debugger with my IDE (JCreator 4.50.010) and debug
> happily.  I can also see that the debugger is listening on that shared
> memory address in stdout.
>
> However, when I start Tomcat as a service, the shared memory connection
> seems to be unavailable.  I have set the following Java Options in the
> "Configure Tomcat" panel:
>
> -Xdebug -Xrunjdwp:transport=dt_shmem,address=jdbconnect,server=y,suspend=n
>
> My IDE can't connect to the shmem address, and the log (logs/stdout.log)
> doesn't show anything about the debugger listening.
>
> I'm running Tomcat 5.0.28, jdk 1.5.0_16, on Windows XP SP2.
>
> Thanks in advance for any ideas & suggestions.
>
> Cheers,
> Bryan
>

Hi, Bryan!

I would try running Tomcat service with your own user account,
instead of the default Local System one. Maybe that will help
you.

BTW:
The JPDA documentation says that the Shared Memory Transport
is implemented using memory-mapped files. You may try to dig there,

http://msdn.microsoft.com/en-us/library/aa366551(VS.85).aspx
http://msdn.microsoft.com/en-us/library/aa366559(VS.85).aspx

Best regards,
Konstantin Kolinko

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