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| Message written to the queue when MQ Put(...) returns false |
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| cabinda |
 Posted: Wed Aug 31, 2011 1:27 am Post subject: Message written to the queue when MQ Put(...) returns false |
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Newbie
Joined: 31 Oct 2010
Posts: 1
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Hi,
I'm actually working int he following environment:
. client: software developped in C++ using IBM Websphere MQ v5.2 Client API on Windows XP
. server: IBM Webpshere MQ v7.0 on windows 2003 Server
My issue is:
My software is installed in an environment with a lot a network issues and the connection to the MQ Server is not stable.
Sometime when i call the Put(..) function it returns false with the following message
<<30/08/2011 05:34:07 p.m. CTSOPE Error Ninguno 10115 No disponible SPN5123 Cannot write to queue QL.EVRU.REG01.
Reason code: 2009>>
but it seems to me that the message has been writen queue. This is very bad because in my software i have a mechanism for re sending the message when the put(..) function returns false.
Can someone help me about this issue ?
Regards. |
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| mvic |
| Posted: Wed Aug 31, 2011 3:29 am Post subject: Re: Message written to the queue when MQ Put(...) returns fa |
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Jedi
Joined: 09 Mar 2004
Posts: 2080
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If you are doing MQPUTs outside syncpoint, then a return code of 2009 (MQRC_CONNECTION_BROKEN) from MQPUT does not tell you whether the message was successfully placed on the queue.
This is because the "connection broken" can happen just before, or just after, the MQPUT request arrives at the queue manager.
A better answer is to do your MQPUTs inside syncpoint, then call MQCMIT. But unfortunately you can still get 2009 (MQRC_CONNECTION_BROKEN) from your MQCMIT, and then the situation is the same: your app does not know the outcome.
A couple of things you have to ask / answer when analysing this kind of situation is: (a) why does your app need to know the outcome, and (b) what would your app do with the knowledge that the previous message failed?
There are some old discussions about this topic in the forum - do some searches, and post again with any further questions after reviewing those discussions. |
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| fjb_saper |
| Posted: Wed Aug 31, 2011 8:04 am Post subject: Re: Message written to the queue when MQ Put(...) returns fa |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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! get to V7!
