Re: [Wrapper-user] mbean nativeRequestThreadDump

[Leif M. <le...@ta...>]

Richard,
    It sounds like you are doing things correctly.  I retested this 
today using JBoss and
Java 1.4.2_01 but everything appears to be working correctly.   I tried 
the JMX interface
while running in both console mode and running as an NT service.
    The thread dump will be dumped to both the console and wrapper.log 
file at the INFO
level.
    When running in console mode are you able to invoke a thread dump using
CTRL-BREAK on Windows or CTRL-\ on UNIX.   On unix, you should also be
able to invoke a thread dumb executing the wrapper script used to launch 
the application
with the dump command.
    I'll test this out on Linux tonight as that may be what you are running?

Cheers,
Leif

> So I've got 3.0.5 running with my jboss application. I set
> wrapper.debug=true, just to see whats happening.
> I get printout that the native library was loaded...
>
>
> INFO   | jvm 1    | 2003/09/16 08:55:12 | Calling native 
> initialization method.
> INFO   | jvm 1    | 2003/09/16 08:55:12 | Inside native WrapperManager 
> initialization method
> INFO   | jvm 1    | 2003/09/16 08:55:12 | Java Version   : 1.4.2-b28 
> Java HotSpot(TM) Client VM
> INFO   | jvm 1    | 2003/09/16 08:55:12 | Java VM Vendor : Sun 
> Microsystems Inc.
> INFO   | jvm 1    | 2003/09/16 08:55:12 |
> INFO   | jvm 1    | 2003/09/16 08:55:12 | Wrapper (Version 3.0.5)
> INFO   | jvm 1    | 2003/09/16 08:55:12 |
> INFO   | jvm 1    | 2003/09/16 08:55:12 | Open socket to wrapper...
> INFO   | jvm 1    | 2003/09/16 08:55:12 | Opened Socket
> INFO   | jvm 1    | 2003/09/16 08:55:12 | Send a packet KEY : 
> XGuDK_MTRJ8iZjZ3
> etc......
>
> I start getting debug printout:
>
> DEBUG  | wrapperp | 2003/09/16 08:56:35 | send a packet PING : ping
> INFO   | jvm 1    | 2003/09/16 08:56:35 | Received a packet PING : ping
> INFO   | jvm 1    | 2003/09/16 08:56:35 | Send a packet PING : ok
> DEBUG  | wrapperp | 2003/09/16 08:56:35 | read a packet PING : ok
> DEBUG  | wrapper  | 2003/09/16 08:56:35 | Got ping response from JVM
> DEBUG  | wrapperp | 2003/09/16 08:56:41 | send a packet PING : ping
>
> but when I press 'invoke' on the methods requestThreadDump
> on the jmx mbean page for the wrapper nothing happens.
> Well, I do advance to a followup jboss web page, but there is
> no thread dump. Not on the web page or any of the logs. In fact,
> the debug information in the native (linux) method
> Java_org_tanukisoftware_wrapper_WrapperManager_nativeRequestThreadDump
> does not print.
>
> No errors, no nothing. Where is the thread dump output suppose to
> go?
>
> Thanks.
>
>
> Richard