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MQSeries.net Forum Index » General Discussion » Message stuck on transmission queue

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BBM
PostPosted: Wed Dec 07, 2005 3:36 am    Post subject: Message stuck on transmission queue Reply with quote

Master

Joined: 10 Nov 2005
Posts: 217
Location: London, UK
Hi,

We had a situation here yesterday where a message got stuck on a transmission queue.

We tried stopping the channel - and the channel just went into a continous 'stopping' state for around 3 hours by which time we used STOP CHANNEL(CHANNAME) MODE(FORCE) to stop it.

Before we did this I used qstatus(XMITQNAME) TYPE(HANDLE) APPLTAG to see which process was holding the transmit queue open.

The process name was AMQRMPPA.EXE

Does anyone know:

a.) Why I had to use a STOP channel force - which I am reluctant to do as I have seen it kill a QM on AIX. Is there another way?

b.) What AMQRMPPA.EXE is - I have searched IBM's website and google'd it..

Any help much appreciated...

Malc
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BBM
PostPosted: Wed Dec 07, 2005 4:28 am    Post subject: Reply with quote

Master

Joined: 10 Nov 2005
Posts: 217
Location: London, UK
Hi,

Thanks for the reply.


>>The most likely cause is that it is in a TCP call which is not returning, or a network call to resolve a hostname. The channel can only respond to a request to stop if the MQC code is in control - if it is waiting for an external API call to complete it cannot end.

This makes a lot of sense - thanks

>>Did you not think to find out what the channel was doing, by getting a stack from the process?

How would I get a stack from the process? - it was on Windows Server 2003 BTW..

Malc
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