Hi Nikolay,

On 8 March 2014 at 14:19:44, Nikolay Perevozchikov ([email protected]) 
wrote:

Hi.

I only recently learned about Akka and there still too many things that I don't 
understand yet. But among this all there is one especially major. I see that 
STM was deprecated in 2.3 because it can work only within same JVM. But what is 
true way to do transactions distributely in Akka? I couldn't find any info 
about it (prior to 2.3 or for 2.3), it even started to seem to me like it is so 
fundamental that no one need to ask, they just know. One thing that I could 
think of is a transactions based on Akka Persistence with help of Channels with 
their at-least-once delivery guarantee. But even using Channels I don't know 
how to do it. I only have faint idea that it can be done that way. Maybe I'm 
totally wrong, I don't know. So, help me please.


The reason that Akka is moving away from transactions and doesn’t provide out 
of the box support for distributed transactions is that they perform poorly in 
real life and promote a thinking that leads to a non scaling design.



To build systems without distributed transactions you need to apply a different 
way of thinking about your systems. A good read on the subject is this Position 
Paper by Pat Helland: Life beyond Distributed Transactions.



B/




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Björn Antonsson
Typesafe – Reactive Apps on the JVM
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>>>>>>>>>>      Read the docs: http://akka.io/docs/
>>>>>>>>>>      Check the FAQ: 
>>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html
>>>>>>>>>>      Search the archives: https://groups.google.com/group/akka-user
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