v0.4.1

• Automatically remove unknown members from the cluster.
• Introduced a new modular structure of the project.
• Instances can now be queried by a specific status.
• Added support of heartbeats.
• Code cleanups and refactoring. Special thanks to @krinart for helping with that.

v0.3.3

• Added retry attempts when binding to the REST API port.
• Introduce a configurable timeout for instance in the "LAUNCHING" state. If this timeout is exceeded, the instance is considered dead and will be terminated even if the launch process succeeds eventually.
• Added configuration parameter for cluster join and cluster leave timeouts.
• The Akkeeper Master instance no longer registers itself in ZooKeeper.

v0.3.2

• From now on the Akkeeper AM automatically cleans up its staging directory when a client requests termination of the application.
• Expose the LaunchArguments data structure to public to make it possible to use Akkeeper Launcher API.

v0.3.1

• Added a configuration parameter for the Launcher timeout value. The default timeout has been increased.

v0.3.0

• The API of the Akkeeper application launcher has been reworked and is now available to be used by a client code to submit Akkeeper applications programmatically.
• Support for non-local URIs (eg HDFS) for resources that are required to submit the Akkeeper application (like user jar, Akkeeper fat jar, etc).
• API for a graceful shutdown of the Akkeeper Master instance. Shutdown of the master instance leads to a shutdown of an entire application.
• The YARN local resource manager has been revised and simplified significantly.
• Bug fixes.

v0.2.3

• Gracefully leave the cluster and terminate the container instance when no running user actors left.

v0.2.2

• Fixed a bug when a user actor crashes the instance before it can fully join the Akka cluster, causing this way orphan records in AM.
• Fixed a bug when the Akkeeper AM is trying endlessly to join the cluster after the restart.
• Finally fixed flaky tests caused by akka/akka#21195 .
• Added descriptions for the Akkeeper configuration parameters.
• Improved descriptions of CLI arguments.

v0.2.1

• Add a CLI argument that allows to specify a custom YARN queue for the Akkeeper Application Master.

v0.2.0

• Cluster member auto-down.
• Update dependencies.
• Cross compilation for Scala 2.11.11 and Scala 2.12.6.
• Minor improvements and bug fixes.