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| Meaning of different SubState in SVRCONN channel |
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| pcelari |
 Posted: Thu Sep 12, 2019 10:02 am Post subject: Meaning of different SubState in SVRCONN channel |
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Chevalier
Joined: 31 Mar 2006
Posts: 411
Location: New York
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Greetings!
I see our SVRCONN channel instances in three different substates:
"MQI Call", "In MQPUT", "Receiving".
Can someone explain what they really mean and the difference? Isn't "Receiving" the same as "In MQPUT"? i.e. When a client makes MQPUT, the channel receives the message and puts into the queue"?
I have yet to find a document detailing this attribute.
thanks much for sharing your insight!
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pcelari
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| gbaddeley |
| Posted: Thu Sep 12, 2019 5:07 pm Post subject: |
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Jedi Knight
Joined: 25 Mar 2003
Posts: 2538
Location: Melbourne, Australia
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MQ Client channels basically provide MQI calls over the network. At the SVRCONN side, the MCA will be doing various things to service the MQI calls and other MQ Client protocol packets. The sub-states will reflect this to a certain extent.
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| hughson |
| Posted: Thu Sep 12, 2019 6:23 pm Post subject: |
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Padawan
Joined: 09 May 2013
Posts: 1959
Location: Bay of Plenty, New Zealand
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These SUBSTATE values show what the channel in question is currently doing.
So for example, SUBSTATE(RECEIVE) means that the channel is currently sitting in a TCP/IP receive() call.
SUBSTATE(MQPUT) means the channel is currently doing an MQPUT to a target queue - having received some data off the TCP/IP socket that told it to do a put.
So, no, SUBSTATE(RECEIVE) and SUBSTATE(MQPUT) are not the same thing, but two distinct operations that the channel will do when the client does an MQPUT. It, as you say, receives it and then puts it onto the queue.
The IBM Knowledge Center documents this attribute in the following places:-Cheers,
Morag
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Morag Hughson @MoragHughson
IBM MQ Technical Education Specialist
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| pcelari |
| Posted: Fri Sep 13, 2019 6:28 am Post subject: |
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Chevalier
Joined: 31 Mar 2006
Posts: 411
Location: New York
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Thank you Morag for the concise explanation!
| Quote: |
| These SUBSTATE values show what the channel in question is currently doing. |
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pcelari
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