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How does broker and config manager communicate? |
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cadenza |
Posted: Thu Sep 22, 2005 2:52 am Post subject: How does broker and config manager communicate? |
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Apprentice
Joined: 01 Jun 2004 Posts: 48
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Hi All,
As far as my knowledge goes I found that broker and config manager communicate between each other using their associated queue managers. These queue managers have channels and transmission queue defined.
But my doubt is about the messages being sent from the config mgr to broker and vice versa. I dont find any remote queue that is defined between these two qmgrs that will transport these messages. Do they use the default remote queues? Which queues do they use to communicate?
If they dont need any remote queue for sending messages then how does the message transfer take place?
Can anyone help?
Thanx. |
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hopsala |
Posted: Thu Sep 22, 2005 3:03 am Post subject: |
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 Guardian
Joined: 24 Sep 2004 Posts: 960
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For a full explanation, read the Intercommunication manual; the short version goes something like this:
An MQ appl has two ways of specifying its destination on MQOPEN - either naming the queue alone, or naming both the queue and qmgr name to which it is sending the msg.
If only a queue name is specified, the administrator must define a QREMOTE definition, or the programmer will get 2085.
If you specify both the queue name and the destination qmgr name, then you need to define an XMITQ that has the same name of the remote qmgr name. For example, if I send from QM1 to QM2, On QM1 i'll type "DEF QL(QM2) USAGE(XMITQ)" (There are other ways to achieve this, such as qmanager alias, read the manual).
Unless i'm mistaken (don't have a WBI on me at the moment) this is how WBI does it, there are XMITQs defined on each qmgr (the config qmgr and the broker qmgr) in the same name of the remote qm, with sender channels attached to them. |
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