Merges two adjacent shards in a Kinesis data stream and combines theminto a single shard to reduce the stream's capacity to ingest andtransport data.Show details from next link. https://docs.aws.amazon.com/ja_jp/cli/latest/reference/kinesis/merge-shards.html
| aws kinesis merge-shards --stream-name split-merge-test \ |
| Kinesis Shard Splitting & Merging by Example — Brandur Leach : http://brandur.org/kinesis-by-example |
| aws kinesis merge-shards --stream-name tom-learning-test-ok-to-delete --shard-to-merge shardId-000000000003 --adjacent-shard-to-merge shardId-000000000009 |
| GitHub - mvucinic/kinesis-tour: a guided tour of AWS Kinesis usage and tuning : http://github.com/mvucinic/kinesis-tour |