RE: App freeze problem

Found out the problem.  This has to do with a DirectAction bug in WO.  Best
thing is to implement the performAction method in your direct action to
handle any kind of exceptions.  An exception can happen if a call is made to
the direct action for an action that does not exist. And that happens all
the time!.  You can find more details about this in the forum archive.

Steve.


-----Original Message-----
From: David Teran [mailto:[email protected]]
Sent: 09 September 2004 09:27
To: Steven Pannell
Cc: '[email protected]'
Subject: Re: App freeze problem


please please please do it one times:

kill -3 pidOfYourApp

after starting the app from the command line OR modifying 
SpawnOfWotaskd.sh as i explained it before. Then send the stacktraces 
to me or to the list.

thanks, david

Am 09.09.2004 um 06:58 schrieb Steven Pannell:

> Hi,
>
> This is will be no help at all I guess but I have the same problem 
> with WO
> 5.2.3.  Sometimes - not always - the application hangs with just 1 
> session.
> It has to be force quit.  I have 4 instances on different machines and 
> all 4
> hang the same way (never just one on it's own).  Which seems a bit of a
> strange coincidence if you ask me.
>
> In any case just to let you know, upgrading won't help.  I have no 
> idea what
> the problem is and I never get any kind of errors in logs.  This 
> problem has
> existed since WO 5.0
>
> Regards,
> Steve.
>
>
> -----
>
> Hi,
> I tried kill -3 <pid>, but the app would not quit. It
> would not quit through monitor and the monitor would
> not respond to requests for  WOSTATS for this
> instance. I have no option but to force quit(kill -9)
> this instance.
> EOAdaptor logging is on but nothing in the log. The
> strange thing is that there was only 1 active session
> for this instance, when it stopped responding. So
> doesn't seem to be a load problem. And all the other 9
> instances are running fine. All what the log says for
> this instance is:
> [2004-09-02 17:53:32 GMT] <WorkerThread8>
> <com.webobjects.appserver._private.WODefaultAdaptor>:
> Growing number of WOWorkerThreads to 32
> [2004-09-02 18:05:10 GMT] <WorkerThread23>
> <com.webobjects.appserver._private.WODefaultAdaptor>:
> Growing number of WOWorkerThreads to 64
> [2004-09-02 18:05:10 GMT] <WorkerThread23>
> <com.webobjects.appserver._private.WODefaultAdaptor>:
> Growing number of WOWorkerThreads to 128
>
> And max workerthread limit is 256. Thanks in advance
> for any clues.
>
> Davinder.
>
> --- David Teran <[email protected]> wrote:
>
>> Hi,
>>
>> did you try kill -3 yourAppPid ? This could give
>> hints about deadlocks.
>>
>> If you do this and see multiple threads sitting and
>> waiting
>> "object.wait()" then you probably have a deadlock. I
>> would be -very-
>> interested in the stacktrace.
>>
>> regards David
>>
>> Am 01.09.2004 um 01:26 schrieb davinder singh:
>>
>>> Hi,
>>> I'm facing problems similar to what were discussed
>> in
>>> the threads - Deadlock, I think and Growing Number
>> Of
>>> WOWorkerThreads. They were posted long back during
>>> WO5.1 days.
>>> I wonder, if anyone still faces these issues with
>>> WO5.2.3?
>>> To recall the problem the app just freezes, unable
>> to
>>> be controlled by monitor. I have to kill it and
>> the
>>> message in the log says:
>>> Growing Number Of WOWorkerThreads to 32
>>> Growing Number Of WOWorkerThreads to 64
>>> I'm using sharedEditingContext, properly unlocking
>>> them in finally{} and running 4 instances on a
>>> Mac10.3.5 server.
>>> Any suggestions???
>>> Thanks,
>>> Davinder.
>>>
>>>
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>
>
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