Re: [Wrapper-user] Service started with Java Service wrapper becoming stale during server reboot

[Divya H. <div...@gm...>]

Hi Mueller,

Thanks for the reply.

I will turn on the debug level and see what is going around.I will let you
know my observations then.

Thanks,
Divya


Christian Mueller-13 wrote:
> 
> Hello Divya,
> 
> how is your script starting/stopping the processes exactly?
> 
> The wrapper-script whenever called to start an instance, checks for the
> pid-file, which contains the pid of the Wrapper process.
> If the pid from the file matches with the currently running processes,
> then
> it won't start the Wrapper, since it assumes the process is already
> running.
> The warning "Removed stale pid file", means that the pid in the pid file
> doesn't match. So the script removes the file and starts a new instance.
> The Wrapper removes the pid file by itself usually during exiting, however
> if the Wrapper is forcibly killed (like a kill -9), then it won't have a
> chance to remove the file.
> So when you run the start command after the reboot and see the stale pid
> warning, it means probably, that the Wrapper was forcibly killed during
> shutdown and couldn't remove the pid file.
> 
> could you also please turn on debug log level (wrapper.debug=TRUE) and
> re-run?
> 
> Best Regards,
> 
> Christian Mueller
> Tanuki Software, Ltd.
> 
> On Mon, Mar 5, 2012 at 6:52 PM, Divya Habin
> <div...@gm...>wrote:
> 
>>
>> I have few services that are running in a Linux machines and I am using
>> the
>> 3.2.3 version of  http://old.nabble.com/file/p33441896/Poller.conf
>> Poller.conf Java Service Wrapper. Just before the sever reboot, the
>> services
>> are stopped using a stopall services command(that has stop command for
>> each
>> service).While Few services are giving out the  following warning ::
>>  'WARN   | wrapper  | 2012/03/04 03:00:42 | JVM process was still running
>> after receiving a SIGCHLD signal.
>> STATUS | wrapper  | 2012/03/04 03:00:42 | TERM trapped.  Shutting down.'
>>
>> After the sever reboot, a startall application script(that has start
>> command
>> for each service) is run.It starts all the applications except those that
>> gave the above warning.
>>
>> But when I try starting the service again using the start command of that
>> particular service, it starts with the message '"Removed stale pid file:'
>> .
>>
>> I want to understand here two things:
>> 1.Why the process has become stale.
>> 2.Why the start all application command that had the start command didn
>> start it after removing the stale id.
>>
>> I am attaching the configuration file.
>>
>> Thanks in advance.
>>
>>
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>>
>>
>>
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