MQdev Blog - moving to Messaging on Developerworks!

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We've moved - come visit us at Messaging Developerworks!

Naomi_S Visits (3370)

We're moving! After many years on MQDev, we are moving to Messaging on Developerworks . It's been good while it lasted, but we're looking forward to the upgrade, and hope that you'll like it too! You'll be able to view not only blogs, but get easy links to demo videos, certification, support, samples, and more, all from one central hub. We're working towards customising parts of the site for specific users, so whether you're interested in MQ on distributed, MQ Appliance, MQ for z/OS, or what MQ is... [More]

MQ DESIGN v/s LINUX PLATFORM SUPPORT FOR O_DIRECT FLAG

Girish D V Visits (3037)

MQ on linux platform by design uses O_DIRECT feature when writing to the recovery logs. But some linux file systems do not support O_DIRECT flag. In such case O_DIRECT feature has to be disabled manually to start the queue manager or create the queue manager. So we have to check linux file system's support for O_DIRECT else crtmqm will fail with AMQ8101 error code or strmqm will fail with AMQ7047 error code. In either case, under MQ traces we can see the following ------{ mqloWriteFile ... [More]

Workaround to Launch IBM MQ Explorer after Uninstalling MQ Fixpack on Windows Platform

Prema Laxmanachar Visits (3722)

Summary : This blog is for the workaround when user tries to launch the MQ Explorer on the back level MQ Fix pack, i.e. when user installed latest MQ Fixpack ex: MQ 7508 Fixpack and uninstalled 7508 FP and when tries to launch MQ explorer on back level Fix pack 7507, might end up with error while launching the explorer using command Error you could see as below while launching MQ explorer And in the *.log - <MQ Installation Directory>\WebSphere... [More]

Marcações: on mq ibm explorer windows

Should I use this old machine to run my production queue manager?

ColinPaice Visits (3762)

We have had a couple of questions about which file system people should use for their distributed production queue manager. One person said they found an old server which had never been used. They put a current Linux on it, and ran a queue manager which became the production queue manager. Full marks for reuse - but it did not give the throughput they needed, so no marks for planning. We also had a question asking if we could come up with a tool or document which could predict the throughput for a given file system and persistent... [More]

Marcações: hdd ssd performance log san mq

Are you using MQ Internet Pass-Thru?

gwydiontudur Visits (3519)

MQ Internet Pass-Thru (MQIPT) is an IBM MQ product extension that helps you connect MQ queue managers or clients that are not on the same network securely. It’s free to download from the IBM MQ SupportPac website , and is fully supported when used with a supported version of IBM MQ. As MQIPT fix pack 2.1.0.3 has just been released, I thought I’d take this opportunity to briefly highlight what this SupportPac offers. What can MQIPT do? MQIPT listens on one or more TCP ports and forwards MQ connections that it receives.... [More]

IBM MQ V8.0 available on HPE NonStop

SteveNeupauer Visits (3426)

Today IBM announced the availability of IBM MQ for HPE NonStop V8.0, the first release of MQ on the NonStop platform since Version 5.3. This new version supports 32-bit and 64-bit native applications on both NonStop X and NonStop i platforms, extending Version 5.3's support for 32-bit applications on NonStop i. IBM MQ for HPE NonStop V8.0 is a new port of the product based on IBM MQ V8.0, including many new features that have been introduced into the MQ product since V5.3 was released, and also taking... [More]

BASHed by a single quote

ColinPaice Visits (4356)

I was trying to specify message selection strings in MQOPEN and I was getting no messages when I did my MQGET. I thought I would pass on the micro gems of what I learned. I was running on z.Lunix and my C program had parameters -SSKEYWORD=kw and -SSVALUE=value. My program then built the SelectionString from kw '=' value. When I specified myprog -SSKEYWORD=COLOUR -SSVALUE='BLUE' n o messages were retrieved. I was expecting the SelectionString to be COLOUR='BLUE' I found I had to... [More]

Marcações: bash amqsbcgc messageproperty amqsbcg selectionstring

Sample web UI based off the MQ REST API

MattLeming Visits (3320)

Just a quick post to advertise the following sample code on GitHub that provides a web UI which uses JavaScript to call the MQ REST API. If you want to see it in action without getting your hands dirty then there is a demo of the web UI on YouTube .

Installing MQ without a Java Runtime Environment or removing one already present

John.Barfield Visits (3533)

Installing MQ without a Java Runtime Environment or removing one already present In IBM MQ releases prior to 9.0.2 the product always installed a Java Runtime Environment (JRE). This was tied into MQ in such a way that once installed, it could not be properly or safely removed without removing the whole of MQ. For some customers this had become a problem. I should say at this point, for those reading who are happily using Java with MQ, that our Service team does update the installed JREs in every fix pack to keep your Java... [More]

Solving so called 'MQ performance problems' - what to check

ColinPaice Visits (3413)

I put this on the ColinPaice z/OS blog ... and thought it worth sharing with a wider audience... I was working with a customer who had an "MQ problem" which turned out to be too many virtual machines (VMs) running on the box - so causing lack of CPU. They fixed this and "the MQ problem went away" There is well know Maslow's hierarchy of needs which says you need air before you think about safety, sense of belonging etc. So here is Colin's hierarchy of needs... so fix 1) then... [More]

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