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| Channel Status Check |
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| smite0hb |
 Posted: Tue Sep 11, 2007 12:46 pm Post subject: Channel Status Check |
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Novice
Joined: 19 May 2006
Posts: 24
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| I am supporting multiple locations, each with there own MQ windows 6.0 server. Each location has 30 + clients connecting to there local mq server. Each client is running a vb application that sends and recieves data from the local mq server. When the local mq server connection goes down , our application keeps trying to connect to the MQ local server. The application tries to instantiate the obejct MQQueueManager. What we are finding, is that even though it cant connect, it still creates a connection on the local mq server, it goes into a time wait and eventually windows will remove the connection, but the local mq server is being overwhelmed with connections. Is there any other way from the client(mq 6.0) to check the status of a server connection or a qmanager or even a queue just to see if we can connect without creating all those connections on the mq server.. Thanks for your help |
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| RogerLacroix |
| Posted: Tue Sep 11, 2007 12:57 pm Post subject: Re: Channel Status Check |
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Jedi Knight
Joined: 15 May 2001
Posts: 3264
Location: London, ON Canada
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Say what!
You can't have your cake and eat it too!
If the local QM goes down then it is down. There will be no connection to it because it is down.
Secondly, it really sounds like the local QM is running just fine and some application issue hapens then the VB applications gets into an endless loop trying to connect.
If an application connects to a local QM then it MUST disconnect when it does not require the connection any longer. It does not reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and reconnect and .............
You get the picture.
Regards,
Roger Lacroix
Capitalware Inc.
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Capitalware: Transforming tomorrow into today.
Connected to MQ!
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| jefflowrey |
| Posted: Tue Sep 11, 2007 12:59 pm Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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The only good way for an application to find out if a queue manager is available is to try to connect to it.
An application should not sit there trying to reconnect lots of times as fast as it possibly can.
It should perform a bare minimum of connection attempts to ensure that there aren't transient network probles, and then decide that the queue manager is unavailable. At that point, it should quit or go into a mode that requires manual intervention before it will attempt to reconnect.
Perhaps you should investigate putting your queue managers into an HA configuration.
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I am *not* the model of the modern major general. |
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| smite0hb |
| Posted: Wed Sep 12, 2007 5:14 am Post subject: |
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Novice
Joined: 19 May 2006
Posts: 24
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