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MQSeries.net Forum IndexMainframe, CICS, TXSeriesMQRC error 4027

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jotwanimukul
PostPosted: Thu Oct 15, 2020 8:36 am Post subject: MQRC error 4027 Reply with quote

Newbie

Joined: 21 Jul 2020
Posts: 3

Hello,

We are getting the error code MQRC 4027(MQRCCF_MQOPEN_FAILED) while external system trying to connect to z/OS queue manager.

Checked logs on Queue Manager Master and CHIN STC and there is no error in the logs.

The corresponding server connection channel is showing as running.

Can you some one please help me how to fix this issue.

Thanks
Mukul
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bruce2359
PostPosted: Thu Oct 15, 2020 12:28 pm Post subject: Re: MQRC error 4027 Reply with quote

Poobah

Joined: 05 Jan 2008
Posts: 8822
Location: US: west coast, almost. Otherwise, enroute.

jotwanimukul wrote:
Hello,

We are getting the error code MQRC 4027(MQRCCF_MQOPEN_FAILED) while external system trying to connect to z/OS queue manager.

What does this mean? Please be precise.

Who/what is "we" that is getting the error? Where do you see the error?

What external system? A Windows image? A CICS region? Some 3rd party app?

How is it trying to connect to z/OS queue manager?
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hughson
PostPosted: Thu Oct 15, 2020 10:55 pm Post subject: Reply with quote

Padawan

Joined: 09 May 2013
Posts: 1512
Location: Bay of Plenty, New Zealand

MQRC 4027(MQRCCF_MQOPEN_FAILED) is a PCF return code. I assume you are getting this from an admin tool of some sort, like MQ Explorer.

The description of this error says to "Check whether the queue manager is active, and the queues involved are correctly set up."

From your description, the queue manager is active, and the client/svrconn channel is connecting. So, are the queues being used by the admin tool available? Has this connection ever worked? Did it stop working recently?

You will need a SYSTEM.ADMIN.COMMAND.QUEUE and a model queue which is likely dependant on the admin tool you are using, for example for MQ Explorer, the SYSTEM.MQEXPLORER.REPLY.MODEL. Are these queues present on your queue manager?

Cheers,
Morag
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jotwanimukul
PostPosted: Fri Oct 16, 2020 6:20 am Post subject: Reply with quote

Newbie

Joined: 21 Jul 2020
Posts: 3

Yes...One of the SYSTEM.CHLAUTH queue was missing.

Created the queue and now its working fine.

Thank you all.
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hughson
PostPosted: Fri Oct 16, 2020 12:07 pm Post subject: Reply with quote

Padawan

Joined: 09 May 2013
Posts: 1512
Location: Bay of Plenty, New Zealand

jotwanimukul wrote:
Checked logs on Queue Manager Master and CHIN STC and there is no error in the logs.

jotwanimukul wrote:
Yes...One of the SYSTEM.CHLAUTH queue was missing.

Created the queue and now its working fine.

Thank you all.

Very surprised that there was no error in one of the STC logs for this problem.
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Morag Hughson @MoragHughson
IBM MQ Technical Education Specialist
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MQGem Software
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bruce2359
PostPosted: Fri Oct 16, 2020 12:33 pm Post subject: Reply with quote

Poobah

Joined: 05 Jan 2008
Posts: 8822
Location: US: west coast, almost. Otherwise, enroute.

I'd asked the OP where the error was seen, but no response.
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