Release 2.0.0 of the Amazon Kinesis Client for Ruby

Release 2.0.0 (February 26, 2019)

• Added support for Enhanced Fan-Out.
  Enhanced Fan-Out provides dedicated throughput per stream consumer, and uses an HTTP/2 push API (SubscribeToShard) to deliver records with lower latency.
• Updated the Amazon Kinesis Client Library for Java to version 2.1.2.
  • Version 2.1.2 uses 4 additional Kinesis API's
    WARNING: These additional API's may require updating any explicit IAM policies
    • RegisterStreamConsumer
    • SubscribeToShard
    • DescribeStreamConsumer
    • DescribeStreamSummary
  • For more information about Enhanced Fan-Out with the Amazon Kinesis Client Library please see the announcement and developer documentation.
• Added version 2 of the RecordProcessorBase which supports the new ShardRecordProcessor interface
  • The shutdown method from version 1 has been replaced by lease_lost and shard_ended.
  • Added the lease_lost method which is invoked when a lease is lost.
    lease_lost replaces shutdown(checkpointer, 'ZOMBIE').
  • Added the shard_ended method which is invoked when all records from a split or merge have been processed.
    shard_ended replaces shutdown(checkpointer, 'TERMINATE').
  • Added an optional method, shutdown_requested, which provides the record processor a last chance to checkpoint during the Amazon Kinesis Client Library shutdown process before the lease is canceled.
    • To control how long the Amazon Kinesis Client Library waits for the record processors to complete shutdown, add timeoutInSeconds=<seconds to wait> to your properties file.
• Updated the AWS Java SDK version to 2.4.0
• MultiLangDaemon now provides logging using Logback.
  • MultiLangDaemon supports custom configurations for logging via a Logback XML configuration file.
  • The example Rakefile supports setting the logging configuration by adding log_configuration=<log configuration file> to the Rake command line.