Amazon CloudWatch adds support for evenly distributing log data from CloudWatch Logs to Amazon Kinesis

You can now configure your Amazon Kinesis Streams subscription in CloudWatch Logs to evenly distribute log data from a log group to multiple shards. Previously log data from one log stream went to the same shard.
To enable this feature please refer to the documentation here. To know more about CloudWatch Logs, visit the CloudWatch Logs product page.
Quelle: aws.amazon.com