RE: MQ Series Channel

Mike Pantzopoulos said:

> I have a job issued through the job scheduler which starts my MQ
Series configuration each morning. 

I assume you IPL each night then?  If not, you should only have to start
the channels once, after your IPL.

> On one machine (AS400), I've discovered that although the STRMQMCHL
command is issued correctly the job which manages the start 
> process fails because it can't connect to the 'other machine' (they're
both AS400s by the way.) I think it's a timing issue. The important
thing 
> to note is that there are two jobs in the process. One is mine, and
the other must be spawned by MQ (under user profile QMQM). It is the 
> latter job which receives the message and fails to start the channel
(I know this because I found the job log under the QMQM profile). 
> What I want to do is change my job to check whether the channel has
started correctly in order to decide whether I should re-try the 
> STRMQMCHL command again, after waiting for a little while (say 60
seconds). My problem is that I can't find a CL command which will do 
> this. The PNGMQMCHL command only works if the channel has not yet
started. I guess I could issue the command and if it fails, then I 
> know the channel has started, but I thought there might be a simpler
way of doing this to ensure that the configuration is established 
> automatically.

I've never had to do this, though I've used MQSeries quite a bit, and
when I had a look at it I began to fear that there was no way to do it.
But I now find that channel events are generated on the 'MQSeries
Channel Related Event Queue', SYSTEM.ADMIN.CHANNEL.EVENT.  This looks
like it would have the information you're after.  I refer you to
'MQSeries Programmable System Management', which is Document Number
SC33-1482-06 for V4R2 of MQSeries.

In any case, it wouldn't hurt to do the delay and retry the start
anyway; if the channel successfully started the first time, the second
start will fail, but that can be monitored for.

Cheers,

Martin.

--                                                                     
Martin McCallion                 
Midas-Kapiti International
Work:  mccallim@midas-kapiti.com
Home: martin.mccallion@ukonline.co.uk

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