* Implement the join to seed nodes process
When a new node is started started it sends a message to all
seed nodes and then sends join command to the one that answers
first.
* Configuration of seed-nodes and auto-join
* New JoinSeedNodeSpec that verifies the auto join to seed nodes
* In tests seed nodes are configured by overriding seedNodes
function, since addresses are not known before start
* Deputy nodes are the live members of the seed nodes (not sure if
that will be the final solution, see ticket 2252
* Updated cluster.rst with latest info about deputy and seed nodes
* Implementation of phi according to the paper
* Config properties and documentation, min-std-deviation,
* acceptable-lost-heartbeats
* Restructure code, HeartbeatHistory is responsible for
stats from historical heartbeats
* Correct and efficient calculation of mean and standard
deviation
* More tests
- Abstracted a FailureDetector trait.
- Added a FailureDetectorPuppet mock that can be user controllable
- Added option to define a custom failure detector
- Misc minor fixes
Signed-off-by: Jonas Bonér <jonas@jonasboner.com>
- Renamed all 'frequency' to 'interval'
- Split up NodeJoinAndUpSpec and into NodeJoinSpec and NodeUpSpec.
- Split up MembershipChangeListenerJoinAndUpSpec and into MembershipChangeListenerJoinSpec and MembershipChangeListenerUpSpec.
- Added utility method 'startClusterNode()'
- Fixed race in register listener and telling node to leave
- Removed 'after' blocks
- Cleaned up unused code
- Improved comments
Signed-off-by: Jonas Bonér <jonas@jonasboner.com>
* Added possibility for user to 'down' a node
* Added possibility for the leader to 'auto-down' a node.
* Added leader role actions
- Moving nodes from JOINING -> UP
- Moving nodes from EXITING -> REMOVED
- AUTO-DOWNING
* Added tests for user and leader downing
* Added 'auto-down' option to turn auto-downing on and off
* Fixed bug in semantic Member Ordering
* Removed FSM stuff from ClusterCommandDaemon (including the test) since the node status should only be in the converged gossip state
Signed-off-by: Jonas Bonér <jonas@jonasboner.com>
* Added 'nr-of-deputy-nodes' config option
* Added fetching of current deputy node addresses
* Minor refactorings
Signed-off-by: Jonas Bonér <jonas@jonasboner.com>
* Simplified node join phase.
* Added tests for cluster node startup and joining, both for singleton cluster and 2-node cluster.
* Fixed bug in cluster node address and cluster daemon lookup.
* Changed some APIs.
* Renamed 'contact-point' to 'node-to-join'.
* Minor refactorings.
Signed-off-by: Jonas Bonér <jonas@jonasboner.com>
* Simplified node join phase.
* Added tests for cluster node startup and joining, both for singleton cluster and 2-node cluster.
* Fixed bug in cluster node address and cluster daemon lookup.
* Changed some APIs.
* Renamed 'contact-point' to 'node-to-join'.
* Minor refactorings.
Signed-off-by: Jonas Bonér <jonas@jonasboner.com>
