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MQ-DATA-LENGTH is ZERO on MQGET

 
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Daniel Prosser

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Joined: 05 Nov 2010
Posts: 57
Location: Amsterdam

PostPosted: Tue Dec 18, 2018 5:41 pm    Post subject: MQ-DATA-LENGTH is ZERO on MQGET
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Hi everyone,

I have a MQGET coded which completed with a Return and reason code of 0, but the DATA-LENGTH field is zero and there doesn't seem to be any data returned.

Code:
MQ-GET-BUF-LEN   =0000003301       
MQ-DATA-LENGTH   =0000000000       
MQ-COMPL-CODE    =0000000000       
MQ-REASON-CODE   =0000000000       


my GET options are set as such.
Code:

 COMPUTE MQGMO-OPTIONS  = MQGMO-NO-SYNCPOINT +     
                          MQGMO-WAIT      +         
                          MQGMO-ACCEPT-TRUNCATED-MSG


Does anyone have any bright ideas?
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Daniel Prosser

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Joined: 05 Nov 2010
Posts: 57
Location: Amsterdam

PostPosted: Tue Dec 18, 2018 6:33 pm    Post subject: Re: MQ-DATA-LENGTH is ZERO on MQGET
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Daniel Prosser wrote:
Hi everyone,

I have a MQGET coded which completed with a Return and reason code of 0, but the DATA-LENGTH field is zero and there doesn't seem to be any data returned.

Code:
MQ-GET-BUF-LEN   =0000003301       
MQ-DATA-LENGTH   =0000000000       
MQ-COMPL-CODE    =0000000000       
MQ-REASON-CODE   =0000000000       


my GET options are set as such.
Code:

 COMPUTE MQGMO-OPTIONS  = MQGMO-NO-SYNCPOINT +     
                          MQGMO-WAIT      +         
                          MQGMO-ACCEPT-TRUNCATED-MSG


Does anyone have any bright ideas?


I think the problem is with the message - not my GET.
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enrico-sorichetti

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Joined: 14 Mar 2007
Posts: 10576
Location: italy

PostPosted: Tue Dec 18, 2018 6:55 pm    Post subject: Reply to: MQ-DATA-LENGTH is ZERO on MQGET
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could it be a consequence of the option
Quote:
MQGMO-ACCEPT-TRUNCATED-MSG
?

might be worth reading the manuals to see what happens to a MQPUTs with zero length message
if it can be done then You will have to do some more checks in Your application
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Rohit Umarjikar

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Joined: 21 Sep 2010
Posts: 2118
Location: NY,USA

PostPosted: Tue Dec 18, 2018 9:28 pm    Post subject:
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Did you specify MQ-DATA-LENGTH during MQGET call?
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Daniel Prosser

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Joined: 05 Nov 2010
Posts: 57
Location: Amsterdam

PostPosted: Tue Dec 18, 2018 10:41 pm    Post subject:
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Rohit Umarjikar wrote:
Did you specify MQ-DATA-LENGTH during MQGET call?


I think the MQ-DATA-LENGTH is output. I do set the MQ-GET-BUF-LEN.

I have seen that the message on the Q is missing the data portion - though why is still a mystery.
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Rohit Umarjikar

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Joined: 21 Sep 2010
Posts: 2118
Location: NY,USA

PostPosted: Tue Dec 18, 2018 10:49 pm    Post subject:
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Quote:
I think the MQ-DATA-LENGTH is output. I do set the MQ-GET-BUF-LEN.
Yes, so do you have it , if not then add it ?
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