name : merge-shards.rst **To merge shards** The following ``merge-shards`` example merges two adjacent shards with IDs of shardId-000000000000 and shardId-000000000001 in the specified data stream and combines them into a single shard. :: aws kinesis merge-shards \ --stream-name samplestream \ --shard-to-merge shardId-000000000000 \ --adjacent-shard-to-merge shardId-000000000001 This command produces no output. For more information, see `Merging Two Shards <https://docs.aws.amazon.com/streams/latest/dev/kinesis-using-sdk-java-resharding-merge.html>`__ in the *Amazon Kinesis Data Streams Developer Guide*.