[Haskell-cafe] Distributed and persistent events bus in Haskell

Arnaud Bailly arnaud.oqube at gmail.com
Tue Apr 7 14:50:49 UTC 2015


I am implementing an application using event sourcing as primary storage
for data, which implies I need a way to durably and reliably store streams
of events on stable storage. I also need to be able to have an event
distribution system on top of that persistent storage so that components
can subscribe to stored events.

So far I have implemented a simple store, e.g. a flat file, which reuses
the format of Apache Kafka (just in case...). Not very robust nor
sophisticated but can work for moderate loads. Now I am looking for the
event distribution part in the hope of being able to reuse some distributed
event bus system that might exist somewhere and not having to roll my own.

I have had a look couple of months ago at Vaultaire, Marquise and friends,
but I am not sure they are really suited to my use case: They seem to be
geared toward very high workload and throughput, like log or huge data
streams analysis.

Thanks for any pointer you might share,
Arnaud Bailly

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