Hi Santanu,
I'm not sure I know enough about your requirements to advise.
In microservices for each piece of data I'd have only one of the
services be the "source of truth" for that data and others subscribe to
events from that microservice.
In your original case, however, it's not clear if there is an "owning"
side or are both the Intranet and Internet applications meant to be
symmetrical. If it's the latter then I don't know it's a common enough
scenario for there to be "reference architecture" but if your data
volumes aren't huge, I'd start off by looking at CRDTs (akka distributed
data <http://doc.akka.io/docs/akka/2.5.1/java/distributed-data.html>).
You also asked if akka can use a message queue and yes, my favourite is
kafka and akka-stream-kafka
<http://doc.akka.io/docs/akka-stream-kafka/current/home.html> is the
integration library.
Hope that gives you some pointers.
Michał
On 13/05/17 08:41, Santanu77 wrote:
Hi Michal
I mean eventual consistency only.
Another use case for such data consistency is for Microservices.
While each microservice will have its own data - certain entities are
required to be in synch across services.
Can consistency (eventual, of course) can be maintained by having
akka? If yes, what is the reference architecture for such
implementations?
Thanks
Santanu
On Monday, 8 May 2017 17:15:26 UTC+8, Michal Borowiecki wrote:
Hi Santanu,
If data consistency is key, please start by thinking carefully
about what you mean by consistency. How strong your consistency
guarantees actually need to be?
I see no reason not to build your system using akka, but be aware
that message-driven distributed systems will generally offer at
most eventual consistency and only provided they're implemented
thoughtfully.
Cheers,
Michal
On 08/05/17 03:37, Santanu Dey wrote:
*Please suggest if Akka can be used for the following use case:*
I have to run an application for two different user groups one
from the Intranet and another from the Internet.
The company policy requires me to run this applications from two
different hosting sites
Each site would contain its own DB, App and Web server resources.
However the application copy on either side should be consistent
with respect to data.
Only communication between these two layers are allowed via a
message queue.
*Questions*
1. Can Akka be used on both sides application layer to solve the
data consistency problem on either copies of the application?
2. Can Akka make use of the message queue for communicating
between the hosting site A to hosting site B?
Thanks
Santanu Dey
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