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| WBI_User21 |
 Posted: Mon Aug 02, 2010 3:15 pm Post subject: CLWLWGHT attribute |
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Voyager
Joined: 12 Jun 2007
Posts: 98
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Hi all,
We are setting up Load balancing in our project and decided to go for weighted load balancing for certain interfaces and assigning higher weight to receiver channel where we have more power ful hardware .I have went through exercise in cluster manual . It talks about setting up new interface with new cluster receiver channel with CLWLWGHT according to requirement . However my requirement is to assign weights to existing queue managers .
Does change in CLWLWGHT ( or CLUSTER Work load balacing attributes on CHANNEL like NETPRIORITY, RANK etc ) needs restart of cluster receiver channel or cluster sender channel for change to get reflected on channel ?
Or it does hit update automatically in cluster , when we change this parameter . |
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| gbaddeley |
| Posted: Mon Aug 02, 2010 3:34 pm Post subject: |
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Jedi Knight
Joined: 25 Mar 2003
Posts: 2538
Location: Melbourne, Australia
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Changes to channel object definitions do not affect currently running channels. This is because the Message Channel Agent takes a copy of the channel object (MQCD) when it starts up, and uses it for the life of the channel instance, whatever state it is in.
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Glenn |
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| WBI_User21 |
| Posted: Tue Aug 03, 2010 12:45 am Post subject: |
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Voyager
Joined: 12 Jun 2007
Posts: 98
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| That means we need to restart CLUSRCVR channels , there might be delays in messages ( or WL RR algorithm is intelligent enough to re-route messages to another instance of same queue . |
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| sumit |
| Posted: Tue Aug 03, 2010 2:12 am Post subject: |
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Partisan
Joined: 19 Jan 2006
Posts: 398
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If you are already using cluster load balancing, then cluster will take care of the messages and will deliver it to other available queues in lyour cluster.
At the same time, it doesn't take long to restart a channel. Or you can opt for a time when there is no message flow between queue managers.
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Sumit |
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| sumit |
| Posted: Tue Aug 03, 2010 5:06 am Post subject: |
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Partisan
Joined: 19 Jan 2006
Posts: 398
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Moderator, can you please move this to clustering seciton?
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Sumit |
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| fjb_saper |
| Posted: Tue Aug 03, 2010 8:30 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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We found that the easiest way was to run a script using MO72 to restart each of the cluster senders (self defined) with
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| stop channel(to.destination) status(inactive) |
Have fun 
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MQ & Broker admin |
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