[Info-vax] Another "Rendez-vous autour de VMS" in France (report)

[Jan-Erik Söderholm]

Den 2022-12-03 kl. 15:38, skrev Arne Vajhøj:
> On 12/3/2022 9:16 AM, Arne Vajhøj wrote:
>> On 12/3/2022 1:28 AM, Hein RMS van den Heuvel wrote:
>>>                           Also interesting to hear/see was
>>> the importance of RabbitMQ.
>> Message queues has become a part of most new solutions today.
>>
>> There are 3 big players in the message queue server market:
>> - RabbitMQ
>> - ActiveMQ/ArtemisMQ
>> - Kafka
>>
>> Note 1: Kafka is not a traditional message queue server, but it is
>> a relevant alternative in some cases.
>>
>> Note 2: various commercial offerings from IBM, Oracle, MS
>> etc. still exist but the open source ones dominate the
>> market.
>>
>> But in many ways the choice of server is not so important
>> as standard protocols has been created to talk to to those
>> servers: AMQP, STOMP and MQTT.
> 
> VSI offers:
> 
> ActiveMQ server + JVM client (JMS) - 
> https://vmssoftware.com/products/activemq/
> 
> Mosquito (MQTT) server - https://vmssoftware.com/products/mosquitto/
> 
> RabbitMQ native client (librabbitmq) that I suspect will work with any 
> server talking AMQP - https://vmssoftware.com/products/librabbitmq/
> 
> Client for MQTT protocol - https://vmssoftware.com/products/paho-c/
> 
> Outside of that:
> 
> JFP VMS Python (I have not checked VSI VMS Python) comes with
> an AMQP module and it is possible to get the standard stomp
> module working.
> 
> RabbitMQ JVM client should work on VMS if the Java version is new enough.
> 
> And for those wanting native access then there exist open source
> C code for STOMP protocol (plus I have created VMS wrappers for
> it - https://www.vajhoej.dk/arne/opensource/vms/ grab the vmspstomp
> library).
> 
> So VMS does have something in this area.
> 
> Arne
> 

Which of these (if any) has a VMS only complete solution?
That is, that doesn't need some "external" Linux (or other)
based server component?

If I just want to have a message based solution for communication
between different native VMS applications, I do not want to be
dependent on some other system/environment.

Yes, mail boxes works quite nice, but there are some issues with
having multiple readers on a mailbox. And you can only "buffer" as
much as our mailbox buffer has room for.