Re: [Wrapper-user] Fatal error in Wrapper

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

Heather,
Another user just reported a similar problem.  They seem to be able to 
reproduce it more
easily.  I have requested more information.  But you might want to 
monitor the following
bug issue.
https://sourceforge.net/tracker/?func=detail&atid=425187&aid=1574537&group_id=39428

Cheers,
Leif

Heather Leonard wrote:
> Leif,
>
> Version: 3.2.0
> Platform: Windows Server 2003
>
> I have verified that wrapper.jar, wrapper.exe and wrapper.dll are all
> from the same version.
>
> The error occurred at least 11 days after the JVM was launched so
> definitely not at start up.  After the crash was discovered, the service
> was restarted without error (a couple of days later).  Unfortunately, I
> have been unable to reproduce the error.  Since it occurred in
> customer's production system, I have copied their installation on my
> machine to try to reproduce the error.  In this way, I can reproduce the
> exact conditions when the error occurred.  However, it is not exactly
> the same system.  Since the application receives data over a socket, is
> it possible for the client to send something that would cause this
> error?  
>
> Thanks,
> Heather
>
> -----Original Message-----
> From: wra...@li...
> [mailto:wra...@li...] On Behalf Of Leif
> Mortenson
> Sent: Thursday, October 05, 2006 11:05 AM
> To: wra...@li...
> Subject: Re: [Wrapper-user] Fatal error in Wrapper
>
> Heather,
>     You somehow figured out a way to crash the Wrapper process itself.  
> Unfortunately,
> this is a state that the Wrapper is not able to recover from on its own.
> I would definitely like to figure out a way to reproduce this as this is
> the first I have heard of this problem.
>
>     Could you tell me what version of the Wrapper you are using as well
> as the platform.
> Are you sure that you are using the wrapper.jar, wrapper.exe, and
> wrapper.dll all from the same version?
>
>     The message about packet type 110 is perplexing.  Packet Id #110 is
> the access key.
> I double checked the code, but this is only sent from the JVM to the
> Wrapper process
> and then only once at startup.   Your error log shows that this packet 
> Id 110 was
> received by the JVM from the Wrapper.
>
>     How long after the JVM was launched did you encounter this error?
>
> Cheers,
> Leif
>
> Heather Leonard wrote:
>   
>> Hi,
>>
>> My application crashed and the following error was in the wrapper log.
>>
>> INFO   | jvm 1    | 2006/09/29 18:46:20 | Wrapper code received an 
>> unknown packet type: 110
>> FATAL  | wrapper  | 2006/09/29 18:46:25 | encountered a fatal error in
>>     
>
>   
>> Wrapper
>> FATAL  | wrapper  | 2006/09/29 18:46:25 |   exceptionCode    = 
>> EXCEPTION_ACCESS_VIOLATION
>> FATAL  | wrapper  | 2006/09/29 18:46:25 |   exceptionFlag    = 
>> EXCEPTION_NONCONTINUABLE_EXCEPTION
>> FATAL  | wrapper  | 2006/09/29 18:46:25 |   exceptionAddress =
>>     
> 7C82F527
>   
>> FATAL  | wrapper  | 2006/09/29 18:46:25 |   Read access exception from
>>     
>
>   
>> 0061FE7D
>> FATAL  | wrapper  | 2006/09/29 18:46:25 | <-- Wrapper Stopping due to 
>> error in service main.
>>
>> I have since been unable to reproduce the crash.  I have two 
>> questions.  Can anyone explain this error and why it would occur?
>> Also, I would like the application to restart when an error like this 
>> occurs.  Will setting the wrapper.on_exit.default property to RESTART 
>> cause a restart in this case?
>>
>> Thanks,
>> Heather Leonard
>>
>>
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