On 14.08.14 18:17, Ashley Aitken wrote:
Hi Konrad,
On Thursday, 14 August 2014 22:39:04 UTC+8, Konrad Malawski wrote:
There already exists integration with Kafka
https://github.com/krasserm/akka-persistence-kafka#journal-topics
<https://github.com/krasserm/akka-persistence-kafka#journal-topics>
developed
by Martin Krasser,
it adresses some of the points raised actually.
Yes, I am aware of that (and thanks to Martin!) but Kafka (please
correct me if I am wrong) doesn't have the ability to create projections.
Perhaps for now we can just manually post events to extra topics each
time we persist actor events in the Kafka store?
Yes, this is already possible with user-defined topics
<https://github.com/krasserm/akka-persistence-kafka#user-defined-topics>. At
the moment this is a plugin-specific feature but can later be
generalized to support akka-persistence "tags".
Similarily there already exists an EventStore akka-persistence
plugin: https://github.com/EventStore/EventStore.Akka.Persistence
<https://github.com/EventStore/EventStore.Akka.Persistence>.
Yes, I am aware of that (and thanks to ES folks!) but it is version
0.0.3 and it seems quite different from the other stores.
And in both of these cases I am also not sure if PersistentViews can
specify other topics / projections as their persistentIds.
I wonder if this is something controlled by Akka Persistence or the
Event Store?
The big thing is that we would like to update the plugin API to
such that would allow plugins to “do more” on the read side of
things (Patrik linked to the “improved Views” proposal already).
Yes, it seems there are many people very interested in this - I wish I
could help more but I am new to all these technologies.
Cheers,
Ashley.
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