Shutdown of Server Channel Factory

[Thomas Bocek]

Hi Michael,

Hmm, it should work like this. I have attached a small app that opens a
channel, closes it and releases resources. The last two lines are:

server.close().awaitUninterruptibly();
cfServer.releaseExternalResources();

Can you try to see what the difference is between the attached and your
code?

Thomas

Michael McGrady wrote:
> Hi, Thomas,
> 
> I tried a slight modification in logging and got the same result as
> before.  Also, I know the close operation finishes because it shows as
> finished and the channel connection as closed.  At least I think I know
> that.  Do you think otherwise?  Thanks, again, for the help.
> 
> 
> 
>     public void stop() {
>         this.channel.close().awaitUninterruptibly();
>         logger.log(InternalLogLevel.INFO, this.getClass().getSimpleName()
>                 + " start stop");
>         NettyKarmaReceiver.this.factory.releaseExternalResources();
>         logger.log(InternalLogLevel.INFO, this.getClass().getSimpleName()
>                 + " end stop");
>     }
> 
> On Sep 9, 2009, at 10:44 AM, Thomas Bocek wrote:
> 
>> Michael, try this one:
>>
>> public void stop() {
>> logger.log(InternalLogLevel.INFO, this.getClass().getSimpleName()
>> + " start stop");
>> this.channel.close().awaitUninterruptibly();
>> NettyKarmaReceiver.this.factory.releaseExternalResources();
>> logger.log(InternalLogLevel.INFO, this.getClass().getSimpleName()
>> + " end stop");
>> }
>>
>> If you block in the Netty thread, then the close operation is never
>> finished, and the terminate() call is in an endless loop, resulting in a
>> deadlock. Either you do it outside the Netty thread as above, or you
>> create a new Thread and run it there.
>>
>> Thomas
>>
>> Michael McGrady wrote:
>>> Thanks, Thomas.  The following is the code I am using and in this test
>>> there is no other connection than the one.
>>>
>>>
>>>
>>>    public void stop() {
>>>        logger.log(InternalLogLevel.INFO, this.getClass().getSimpleName()
>>>                + " start stop");
>>>        ChannelFuture close = this.channel.close();
>>>
>>>        close.addListener(new ChannelFutureListener() {
>>>
>>>            public void operationComplete(ChannelFuture future)
>>>                    throws Exception {
>>>               
>>> NettyKarmaReceiver.this.factory.releaseExternalResources();
>>>
>>>                logger.log(InternalLogLevel.INFO,
>>> this.getClass().getSimpleName()
>>>                        + " end stop");
>>>            }
>>>
>>>        });
>>>    }
>>>
>>>
>>>
>>> On Sep 9, 2009, at 10:09 AM, Thomas Bocek wrote:
>>>
>>>> Michael McGrady wrote:
>>>>> I am not getting a return from the NeoServerSocketChannelFactory's
>>>>> releaseExternalResources method.  Is this something anyone else has
>>>>> seen?  This is very surprising to me because this is just in essence a
>>>>> return from the ExecutorUtil terminate method which just copies and
>>>>> shuts down the copies as ExecutorServices shutdown method.  There
>>>>> should be only a 100 millisecond wait in that method.
>>>>
>>>> The awaitTermination() call may return false, so it will wait longer
>>>> than 100msec.
>>>>
>>>>> Any ideas?
>>>>
>>>> Make sure you have closed all connections before calling
>>>> releaseExternalResources. You can use the ChannelGroup to group
>>>> channels
>>>> and close them with ChannelGroup.close().
>>>>
>>>> Thomas
>>>> _______________________________________________
>>>> netty-users mailing list
>>>> netty-users at lists.jboss.org
>>>> https://lists.jboss.org/mailman/listinfo/netty-users
>>>
>>> Mike McGrady
>>> Principal Investigator AF081-028 AFRL SBIR
>>> Senior Engineer
>>> Topia Technology, Inc
>>> 1.253.720.3365
>>> mmcgrady at topiatechnology.com
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> ------------------------------------------------------------------------
>>>
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> 
> Mike McGrady
> Principal Investigator AF081-028 AFRL SBIR
> Senior Engineer
> Topia Technology, Inc
> 1.253.720.3365
> mmcgrady at topiatechnology.com
> 
> 
> 
> 
> 
> 
> 
> 
> 
> ------------------------------------------------------------------------
> 
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