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MQSeries.net Forum Index » IBM MQ API Support » Can not write message to SYSTEM.COMMAND.INPUT queue

Can not write message to SYSTEM.COMMAND.INPUT queue

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brandoh

Posted: Wed Oct 18, 2006 11:42 am Post subject: Can not write message to SYSTEM.COMMAND.INPUT queue

Newbie

Joined: 18 Oct 2006
Posts: 8

Since the MS0B support pac does not support MQ6 on ZOS yet, I am trying to write a java program to put a command on the SYSTEM.COMMAND.INPUT queue and read the response off of the ReplyToQueue I specify.

I am getting a 2042 Object in Use during the accessQueue method. I have set the open options to MQC.MQOO_INPUT_SHARED | MQC.MQOO_OUTPUT.

When I look in the ISPF panels, there is an open input count on the queue. How do I get around this? Do the ISPF panels (CSQOREXX) put messages on that queue in exclusive mode?

Any help would be appreciated!

Brando

jefflowrey

Posted: Wed Oct 18, 2006 11:51 am Post subject:

Grand Poobah

Joined: 16 Oct 2002
Posts: 19981

You shouldn't need to open that queue for INPUT at all, just for OUTPUT.

You're going to put a message on the queue, and the command server is going to read that message and put a reply message on the ReplyTo queue in that message.
_________________
I am *not* the model of the modern major general.

brandoh

Posted: Wed Oct 18, 2006 12:05 pm Post subject:

Newbie

Joined: 18 Oct 2006
Posts: 8

That seems to work, thanks for the info.

brandoh

Posted: Fri Oct 20, 2006 3:57 am Post subject:

Newbie

Joined: 18 Oct 2006
Posts: 8

This is my message set up

MQMessage msg = new MQMessage();
msg.replyToQueueName = replyQName;
msg.messageType = MQC.MQMT_REQUEST;
msg.format = MQC.MQFMT_STRING;
// ... and write some text
msg.writeString("DISPLAY QL(TRADEVAL*) CURDEPTH");

and this works. Thanks for the help!

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