Kinesis Operations¶

Shard Splitting¶

• Used to increase the Stream capacity (1 MB/s data in per shard)
• Used to divide a "hot shard"
• The old shard is closed and will be deleted once the data is expired
• No automatic scaling (manually increase/decrease capacity)
• Can't split into more than two shards in a single operation

Merging Shards¶

• Decrease the Stream Capacity and save costs
• Can be used to group two shards with low traffic (cold shards)
• Old shards are closed and will be deleted once the data is expired
• Can't merge more than two shards in a single operation