AW: MQ connect errors

[Kleinmanns, Hubert]

Title: MQ connect errors

Faizel,

 

you should have a look to the error logs and FDCs on the receiving side. They should provide you with more useful information. See the logs in (on Unix) /var/mqm/errors, /var/mqm/qmgrs/@SYSTEM/errors and /var/mqm/qmgrs/<qmgr name>/errors (on Windows replace /var/mqm by your MQ data path).

 

Regards

Hubert

 

-----Ursprüngliche Nachricht-----
Von: Faizel Sedick [mailto:[EMAIL PROTECTED]
Gesendet: Freitag, 23. Januar 2004 10:07
An: [EMAIL PROTECTED]
Betreff: MQ connect errors

I am trying to simulate a problem we currently have in production. This is what happens in production:

A client application on Windows starts 10 instances of itself, connects to the same QM and the same queue at the same time. It then puts a message and disconnects. Some of the instances fail with a create object error. Its not native MQI calls and does not return MQ error codes. I asume that the create object error is either the creation of the queue or queue manager object, so it either fails on MQOPEN or MQCONNECT call.

I tried to simulate this by running 20 apps that write 1000 messages to the same queue. First I create the loop around the MQOPEN/PUT/CLOSE calls. ie the app stays connected to the queue manager and then opens, puts and closes the 1000 times. This finished with no errors. Then I put the loop around MQCONN/OPEN/PUT/CLOSE/DISC and a few of them failed with 2059 errors.

The error logs just give the ususal "AMQ9202: Remote host 'w31873079 (10.36.137.79) (1414)' not available" error. There is nothing in any other error logs or FDC files created.

Can anyone explain this. Does the listener just fail to start up connections?

----------------------------------------------------------------------------
Faizel Sedick

Woolworths Integration
IBM MQSeries Certified Specialist, Developer & Solutions Expert
Email:  [EMAIL PROTECTED]
Phone:  +27 21 407 2452        
Cell:   +27 83 251 9361

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