Re: [Wrapper-user] Ping

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

Taikei,
What integration method are you using?   Both the WrapperSimpleApp and
WrapperStartStopApp helper classes launch the user program in the background
so the Wrapper will be notified that the application is started even if 
the user's
main method has not completed.

It sounds like you are using method #3, implementing your own 
WrapperListener?
In this case, the pings do not start until after the 
WrapperListener.start method has
completed.

If your start method is going to take longer than 30 seconds to complete 
then you
will need to set the wrapper.startup.timeout to a larger value.

There was a bug fixed in 3.1.0 in which the very first ping timeout was 
hardcoded
at 30 seconds.   It is possible that you are encountering problems 
related to this
as it was still a bug in 3.0.5.   (If you upgrade, I suggest 3.1.1 over 
3.1.0.  There
were a couple significant bugs fixed in 3.1.1.)

If you could post your debug output either on list or to me directly, I 
would be able
to better explain what is happening with your application and how best 
to resolve it.
Delete your existing wrapper.log file.  Set wrapper.debug=true.   Then 
run your
application a single time all the way to shutdown.  I should then be 
able to tell you
exactly what is happening.  Send your wrapper.conf as well so I can see your
timeout values.   If it is larger than 40Kb or contains sensitive 
information, then
sent it to me off list.

Cheers,
Leif


v103 wrote:

>On JSW 3.0.5, Does ping between  wrapper and Java Side WrapperManager start
>after listener.start() completion.
>In another words, is ping thrown to Java side while listener.start() is in
>process.
>  
>I am having difficulty with this, the startup(listenter.start()) takes more
>than 5 minutes to complete, and before this completion.
>
>I set 
>wrapper.startup.timeout=0
>wrapper.ping.interval=3600
>wrapper.ping.timeout=7200
>
>I know this is an extreme amount of settings, however I don't want any
>timeout and JVM shutdowns during listener.start().
>
>The wrapper.log at the end tells "JVM appears hung: TImed out waiting for
>signal from JVM."
>"JVM did not exit on request, terminated".
>
>Taikei Matsushita
>  
>