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| MQ Clustering |
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| bjeergie |
 Posted: Sat Dec 02, 2006 7:40 pm Post subject: MQ Clustering |
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Newbie
Joined: 02 Dec 2006
Posts: 4
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Am running business critical applications which use MQ services. I have this frequent problem of recycling the whole stuff namely MQ Manager as well as application, whenever MQ Manager hangs or crashes. The issue here is the time taken to recover. Basically am looking for best possible way to make MQ outages transparent to applications.
Can MQ Clusters address this issue.  |
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| jefflowrey |
| Posted: Sun Dec 03, 2006 4:36 am Post subject: Re: MQ Clustering |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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| bjeergie wrote: |
| Can MQ Clusters address this issue. |
No.
HA clusters can.
_________________
I am *not* the model of the modern major general. |
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| deanfore |
| Posted: Mon Dec 04, 2006 9:14 am Post subject: |
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Novice
Joined: 08 Aug 2006
Posts: 18
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| Can you tell me why the WMQ is hanging? |
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| HubertKleinmanns |
| Posted: Tue Dec 19, 2006 2:36 am Post subject: |
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Shaman
Joined: 24 Feb 2004
Posts: 732
Location: Germany
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Which operating system do you have?
Which version of MQ do you use?
Which CSD do you have installed?
It maybe, that a QMgr hangs or crashes, but this should not be a "frequent problem" as you describe. I guess, you have some other problem!
What happens, when a QMgr hangs or crashes? Are the networks available? What's about the disk usage? Are the transaction logs big enough?
What tell the MQ error logs (in /var/mqm/errors and /var/mqm/qmgrs/your_qmgr/errors) and do you have any *.FDC files (in /var/mqm/errors)?
HA clusters are able, to restart MQ and the connected applications, but they also cannot address some serious problems on your systems!
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Regards
Hubert |
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