* Major refactoring to remove the need to use special
Cluster instance for testing. Use default Cluster
extension instead. Most of it is trivial changes.
* Used failure-detector.implementation-class from config
to swap to Puppet
* Removed FailureDetectorStrategy, since it doesn't add any value
* Added Cluster.joinSeedNodes to be able to test seedNodes when Addresses
are unknown before startup time.
* Removed ClusterEnvironment that was passed around among the actors,
instead they use the ordinary Cluster extension.
* Overall much cleaner design
* Gossip is not exposed in user api
* Better and more events
* Snapshot event sent to new subscriber
* Updated tests
* Periodic publish only for internal stats
The problem:
* Node that is Up joins a cluster and becomes Joining in that cluster
* The joining node receives gossip, which results in conflict,
merge results in Up
* It became Up in the new cluster without passing the ordinary leader
action to move it to Up
The solution:
* Change priority order of Up and Joining so that Joining is used when
merging
- Created FailureDetectorStrategy base trait.
- Created FailureDetectorPuppetStrategy.
- Created AccrualFailureDetectorStrategy.
- Created two versions of LeaderDowningNodeThatIsUnreachableMultiJvmSpec
- LeaderDowningNodeThatIsUnreachableWithFailureDetectorPuppet
- LeaderDowningNodeThatIsUnreachableWithAccrualFailureDetector
- Added AccrualFailureDetectorStrategy to all the remaining tests - will be split up into two versions shortly.
Signed-off-by: Jonas Bonér <jonas@jonasboner.com>