[Info-vax] MQ (again) and Alpha to Integrity Migration Job opening.

[Brett Cameron]

On Friday, March 13, 2015 at 8:03:26 AM UTC+13, Stephen Hoffman wrote:
> On 2015-03-12 18:26:53 +0000, Hollywood said:
> 
> > From reading this group i know there are users of MQseries out there,  
> > with IBM withdrawing MQSeries software from OpenVMS platform in 2016, i 
> > was curious what people are planning to use as a replacement/bridge ?
> 
> ZeroMQ is probably the most likely culprit, depending on what you're up 
> to with the WebSphere MQ client bits.
> 
> > Secondly,  we are about to start migrating from Alpha to Integrity at 
> > an OpenVMS site in Boston,  MA,  looking for someone with prior 
> > experience in porting and Data Alignment that maybe interested in 
> > joining the team.  VAX Basic, RMS files, MQSeries, Dec Scheduler, CMS, 
> > few bits a C code, MAcro64, SMG, FMS, DCL and all that fun stuff.
> 
> That's in our wheelhouse.
> 
> Not looking to talk you out of this port, but you are aware of VSI and 
> their plans for an x86-64 port?  
> <http://www.vmssoftware.com/pdfs/VMS_Software_Roadmap_20150224.pdf>
> 
> <http://www-01.ibm.com/software/support/lifecycleapp/PLCDetail.wss?synkey=L535466Q68603M11-B643716T67944A11-Y857982O25909D66> 
> 
> 
> 
> -- 
> Pure Personal Opinion | HoffmanLabs LLC

Depending on the functionality that's required, I'm not so sure that ZeroMQ would be the most appropriate choice here. ZeroMQ is designed to be very fast and very flexible in terms of the messaging patterns it supports; however it does not (was not intended to) provide reliable messaging. Some AMQP implementation could be an option; however it would be necessary to craft something to integrate with MQ. Another possibility might be the MQTT protocol, which is supported by the latest versions of WebSphere MQ and it's simple enough to get a client implementation onto OpenVMS; however it really all comes down to the particular messaging use-cases that need to be addressed. Not all message queuing technologies are created equal, and I'd want to fully understand the requirements before making too many recommendations or suggestions. 

Brett