Re: [Wrapper-user] mbean nativeRequestThreadDump

[Richard E. <rem...@ed...>]

I do launch the java with the flag '-Xrs'; maybe that
prevents the signal from being seen.

Richard


Leif Mortenson wrote:
> 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
> 
> 
> 
> 
> 
> 
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