v.3.6.0

New Features and Improvements:

• Log configuration details during node initialization

Bug fixes:

• Fixed error when registering a duplicate object name in the JMX service

Dependency updates:

• Spring Boot 2.1.9.RELEASE

v.3.5.0

New Features and Improvements:

• Add majority-based policy for split brain detection groups (see SplitBrainDetectorGroup)
• Improve partition mapper to make sure that all backup nodes reside on different hosts

Dependency updates:

• Spring Boot 2.1.7.RELEASE

v.3.4.1

Dependency updates:

• Spring Boot 2.1.6.RELEASE
• AWS SDK 1.11.587
• Fabric8io Kubernetes Client 4.3.0

v.3.4.0

New Features and Improvements:

• Consul-based seed node provider (see ConsulSeedNodeProvider)
• Support for periodic node health checks via split-brain detectors (see ClusterServiceFactory#setSplitBrainCheckInterval(long))

v.3.3.0

New Features and Improvements:

• Add Etcd-based seed node provider
• Support JDK 11

v.3.2.0

New Features and Improvements:

• Add information about failed nodes to ClusterChangeEvent

Bug fixes:

• Fix DefaultFailureDetector bug that could lead to node failures not being detected in case of concurrent termination of multiple nodes

Dependency Updates

• Upgrade to Spring Boot 2.1.4.RELEASE
• Upgrade to AWS Java SDK 1.11.533
• Upgrade to Curator Framework 2.13.0
• Upgrade to Kubernetes Client 4.2.0
• Upgrade to Kryo Serializers 0.43

v.3.1.0

New Features and Improvements:

• Add @RpcRetry annotation for RPC methods in order to support retrying of failed RPC invocations
• Javadoc updates and improvements

Bug fixes:

• Fix a potential concurrency issue in NetworkClient that could result in the NetworkClient#localAddress() returning null inside of the NetworkClientCallback#onConnect(...) method

v.3.0.0

New Features and Improvements:

• Complete overhaul of messaging channel API (breaking changes)
• Support send and broadcast operations with acknowledgements
• Better error reporting for messaging/rpc
• Add 'prepare' and 'complete' phases to coordination process

Breaking changes:

Messaging Service

• Messaging channel now provides builder-style API for constructing message operations:
  • MessagingChannel#newSend()
  • MessagingChannel#newRequest()
  • MessagingChannel#newSubscribe()
  • MessagingChannel#newBroadcast()
  • MessagingChannel#newAggregate()
• Rename MessagingChannel#stream(...) to subscribe(...)
• Rename Message#get() to payload()
• MessageBase#from() now returns ClusterNodeAddress instead of ClusterNodeId
• Refactoring of message interceptor API (separate interfaces for client and server interceptors)

Metrics Service

• Switch to Micrometer for internal metrics gathering and reporting
• Dropped hekate-metrics-influxdb,hekate-metrics-cloudwatch and hekate-metrics-cloudwatch modules

Dependency Upgrades:

• All dependencies aligned with Spring Boot BOM 2.0.8.RELEASE
• Upgraded to Kubernetes Client 4.1.3
• Upgraded to JClouds 2.1.2

v.2.6.0

New Features and Improvements:

• Kubernetes-based seed node discovery (see KubernetesSeedNodeProvider).
• Configuration option to close idle sockets in the Coordination Service (see CoordinationServiceFactory#setIdleSocketTimeout(long)).

v.2.5.0

New Features and Improvements:

• ZooKeeper-based seed node discovery (see ZooKeeperSeedNodeProvider).
• Support for multiple seed node providers (see SeedNodeProviderGroup).
• hekate-codec-kryo and hekate-codec-fst modules have been restored to simplify importing of Kryo and FST dependencies.

Bug fixes:

• Fix invalid behavior of Message#isRetransmit() that always returned true even if message had not been sent yet.

Dependency Upgrades:

• Upgraded to Netty 4.1.28.Final
• Upgraded to Slf4j 1.7.25
• Upgraded to Spring Framework 4.3.18.RELEASE
• Upgraded to Spring Boot 1.5.15.RELEASE
• Upgraded to AWS SDK 1.11.380
• Upgraded to InfluxDB-Java 2.12