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| sarat |
 Posted: Wed Jan 16, 2013 12:17 pm Post subject: pub/sub issue on WMB V8 with WMQ V 7 |
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Centurion
Joined: 29 Jun 2005
Posts: 136
Location: India
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we have migrated recently from MB 6.1 to V8. As subscription part moved from broker to MQ, we have registered all the subscriptions in MQ. Everything is working as expected in local Evn's. But in cluster Integration test some subscriptions are not working. Some messages are not getting published to subscribed queues and some are working. How can we debug the situation. Will mqsi trace gives any clue ? Do we need to take any extra precautions in cluster env? With single QM all the published messages reaching to relative subscription queues ..
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With Regards,
Sarat. |
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| smdavies99 |
| Posted: Wed Jan 16, 2013 11:01 pm Post subject: |
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Jedi Council
Joined: 10 Feb 2003
Posts: 6076
Location: Somewhere over the Rainbow this side of Never-never land.
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What version of WMQ are you using? Does it meet the minimum required for Broker V8?
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WMQ User since 1999
MQSI/WBI/WMB/'Thingy' User since 2002
Linux user since 1995
Every time you reinvent the wheel the more square it gets (anon). If in doubt think and investigate before you ask silly questions. |
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| sarat |
| Posted: Thu Jan 17, 2013 1:18 am Post subject: |
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Centurion
Joined: 29 Jun 2005
Posts: 136
Location: India
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Hi smdavies99,
Thanks for the response. We are using MQ 7.0.1 and it is compatible with WMB V8. Right now, we have requested the MB and MQ logs for analysis. I just want to know are there any existing or known issues for pub/sub in WMB V7 or V8
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With Regards,
Sarat. |
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| smdavies99 |
| Posted: Thu Jan 17, 2013 1:52 am Post subject: |
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Jedi Council
Joined: 10 Feb 2003
Posts: 6076
Location: Somewhere over the Rainbow this side of Never-never land.
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The big change between WMB V6.1 and V7 and thus by implication V8 is that the PUB/SUB Handling is not carried out by WMQ and not by WMB.
Have you searched the WMQ forums on this site for any common problems?
_________________
WMQ User since 1999
MQSI/WBI/WMB/'Thingy' User since 2002
Linux user since 1995
Every time you reinvent the wheel the more square it gets (anon). If in doubt think and investigate before you ask silly questions. |
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| sarat |
| Posted: Thu Jan 17, 2013 2:15 am Post subject: |
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Centurion
Joined: 29 Jun 2005
Posts: 136
Location: India
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| Quote: |
| The big change between WMB V6.1 and V7 and thus by implication V8 is that the PUB/SUB Handling is not carried out by WMQ and not by WMB. |
I hope, you were telling subscription moved from MB to MQ. It would be great If you can provide some link which I can go through regarding this topic
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With Regards,
Sarat. |
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| nathanw |
| Posted: Thu Jan 17, 2013 2:29 am Post subject: |
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Knight
Joined: 14 Jul 2004
Posts: 550
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I believe smdavies meant that subscriptions are NOW carried out by WMQ
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Who is General Failure and why is he reading my hard drive?
Artificial Intelligence stands no chance against Natural Stupidity.
Only the User Trace Speaks The Truth  |
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| smdavies99 |
| Posted: Thu Jan 17, 2013 2:57 am Post subject: |
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Jedi Council
Joined: 10 Feb 2003
Posts: 6076
Location: Somewhere over the Rainbow this side of Never-never land.
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| sarat |
| Posted: Thu Jan 17, 2013 3:41 am Post subject: |
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Centurion
Joined: 29 Jun 2005
Posts: 136
Location: India
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| sarat |
| Posted: Thu Jan 17, 2013 5:10 am Post subject: |
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Centurion
Joined: 29 Jun 2005
Posts: 136
Location: India
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I just red this below sentence from Filters topic:
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| This subscription results in all publications from all connected brokers being sent to the broker that is local to the subscriber. Therefore, for performance reasons, if you have set up a network of brokers, you are advised to not use this technique. |
Does it mean, subscriptions will be sent only to local broker queues where subscriptions registered ?
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With Regards,
Sarat. |
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| mqjeff |
| Posted: Thu Jan 17, 2013 5:13 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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| sarat wrote: |
I just red this below sentence from Filters topic:
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| This subscription results in all publications from all connected brokers being sent to the broker that is local to the subscriber. Therefore, for performance reasons, if you have set up a network of brokers, you are advised to not use this technique. |
Does it mean, subscriptions will be sent only to local broker queues where subscriptions registered ? |
No.
What it means is this.
Publications on a given topic are sent to all subscribers. Where a given subscriber has registered a content-based filter, this filter is applied at the local broker, and not at the publication side.
So if you publish 100 messages to a topic, and only five of those messages match the filter, all 100 messages will be passed over the mq network to the local broker, which will process all 100 and then deliver only the five messages that match to the subscriber. |
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| sarat |
| Posted: Thu Jan 17, 2013 5:37 am Post subject: |
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Centurion
Joined: 29 Jun 2005
Posts: 136
Location: India
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Thank you very much jeff !!
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With Regards,
Sarat. |
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