Gwydion Tudur

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Shared queues – where do the messages live?

I recently wrote a post giving a high level introduction to queue sharing groups (QSGs), and their benefits (mainly high availability). One of the most...

Why you need queue sharing groups

High availability is very important for many of the customers that I talk to, and there are a number of features in MQ that help...

MQ V9.0.5 – a new method for LDAP authorization

Background MQ on distributed platforms has had the capability to perform authorization checks based on users and groups in LDAP, rather than the local Operating...

What happens if you don’t back up your CF structures?

We often give the advice that MQ CF structures should be backed up regularly, by which we mean at least every hour. A recent customer...

SAF Authentication for the REST API and MQ Console on z/OS

MQ V9.0.4 added the ability to authenticate and authorize users of the IBM MQ Console and REST API based on users and groups defined in...

How should you set CFCONLOS and RECAUTO?

Of course, you want the queue manager to stay up after a CF failure to get the structure back faster, don’t you? The answer is...

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