Hi John,
We want to use sharding and Akka persistence.
So far we have only used an in memory implementation for Akka
persistence but now want to implement a proper storage solution.
Glad to hear that!
We have noticed that Akka is persisting the the shard co-ordinators in
addition to our persistent actors.
Do you know why it needs to do this ?
It’s because the node on which the shard coordinator is running might die and
then it must be able to be reconstructed at some different node.
The state that is required for this is persisted using akka-persistence.
Are there other Akka internal classes that use Akka persistence as well
?
No, it’s just the ClusterSingleton and ClusterSharding (in akka-contrib), which
we’ll want to promote out of contrib soon.
Hope this helps,
Happy hakking!
--
Konrad 'ktoso' Malawski
hAkker @ typesafe
http://akka.io
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