MQSeries.net :: View topic - Should use the clustering ?

MQSeries.net

Tech Exchange

Education

Certifications

Library

Info Center

SupportPacs

FAQÂ Â

Usergroups

RSS Feed - WebSphere MQ Support

RSS Feed - Message Broker Support

MQSeries.net Forum Index » Clustering » Should use the clustering ?

Should use the clustering ?

« View previous topic :: View next topic »

Author

Message

Posted: Tue Jan 22, 2002 5:36 am Post subject:

Apprentice

Joined: 20 Dec 2001
Posts: 47

Hi, one of our customer are thinking should they switch they current MQSeries enviroment on clustered one, for loadbalancing and failover switch reasons. But they are also considered about making kind of "manual" loadbalancing, where the MQS sender (requestresponse kind of messaging) application does the loadbalancing by itself by sending message in round robin kind of style to each configured QM's.

The reason for this is because they are little bit scared about possible difficulties in clustering enviroment. So question is what you think about is there ANY reason to start "inventing the wheel" again and do own lite version of loadbalancing or is the MQSeries own clustering really so difficult and hard to usemaintain ?

NickB

Posted: Wed Jan 23, 2002 2:37 am Post subject:

Centurion

Joined: 20 May 2001
Posts: 107
Location: Zurich Financial Services

My recommendation would be to use clustering even though it may involve some pain in the process.

Doing it yourself at the application level is clumsy, time-consuming and error-prone. You would need to build a list of all potential qmgrs to connect to in turn. This list would need to be externalised from the application to allow it to be extended or altered. I guess you could build a layer between your real application and MQ so that this new layer does all the manual load-balancing.

You'd have to work out how to determine which qmgr wa the least busy. Presumably this would involve querying queue depths on all the qmgrs and then making a decision based on that. This code will take time to develop and test and then of course you are stuck with maintenance in perpetuity.

Clustering does this for you as well as vastly simplifying administration of large MQ networks.

Your question is a valid one as clustering is not for the faint hearted. However if you devote some time up front to understand how it really works and how to problem solve when things go wrong, then the benefits far outweigh the downsides.

Display posts from previous:

Page 1 of 1

MQSeries.net Forum Index » Clustering » Should use the clustering ?

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Protected by Anti-Spam ACP