Disabling journal in AKKA persistence

Question

I'm doing a performance test to an AKKA persistent actor and I want to know the impact writing to the journal.

Simple question but I did not find anything in the documentation:

How to disable the journal from the config file? I'm looking for something like a mock or null journal plugin.

Any idea?

Answer 1

I created a project with a persistence plugin (journal + snapshots) that basically does not do anything but ignoring.

Of course, using this plugin will not recover after a failure, so your system will not be resilient.

This is the project: https://github.com/angelcervera/akka-persistence-nowhere

How to use it:

1. Import or add in the classpath

resolvers += "osm4scala repo" at "http://dl.bintray.com/angelcervera/maven" // If 
it's not found in the main maven repository. 
libraryDependencies += "com.acervera.akka" %% "akka-persistence-nowhere" % "1.0.1"

2. Overwriting your default application.conf

akka {
  persistence {
    journal.plugin = "disable-journal-store"
    snapshot-store.plugin = "disable-snapshot-store"
  }
}

disable-journal-store {
  class = "com.acervera.akka.persistence.nowhere.AkkaPersistenceNowhereJournal"
  plugin-dispatcher = "akka.persistence.dispatchers.default-plugin-dispatcher"
}

disable-snapshot-store {
  class = "com.acervera.akka.persistence.nowhere.AkkaPersistenceNowhereSnapshotStore"
  plugin-dispatcher = "akka.persistence.dispatchers.default-plugin-dispatcher"
}