Akka Persistence Batch Write

[Aditya Devisetty]

Hi,

  

   In Akka Persistence(here), It's specified that, the batches are used to ensure atomic writes of even. Can any one please give an example on, how 

to write batch writes in persistence with atomicity?.

[Aditya Devisetty]

any one please give some help

[Patrik Nordwall]

Somewhere it is documented as: "All events that are persisted in context of a single command are written as a single batch to the journal (even if persist is called multiple times per command). The recovery of a PersistentActor will therefore never be done partially (with only a subset of events persisted by a single command)."

However, I'm not sure that all journals implement it like that. It is not verified by the TCK. We have also discussed this in issue https://github.com/akka/akka/issues/15377, and we might want to improve things in this area.

/Patrik

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Patrik Nordwall
Typesafe -  Reactive apps on the JVM
Twitter: @patriknw