|The maximum number of active shards in each topic.
|The maximum number of total shards in each topic.
|HTTP body size
|The maximum body size in HTTP requests.
|The maximum size of a single string in data.
|Wait time for merge and split operations on new shards
|The period of time that you must wait to perform merge or split operations after a shard is created.
|Queries per second (QPS)
|The maximum write QPS on each shard. Multiple records written at a time are considered one record.
|The maximum write throughput per second on each shard.
|The maximum number of projects that can be created within each Alibaba Cloud account.
|The maximum number of topics that can be created in each project. Contact administrators if you have other requirements.
|Time-to-live (TTL) period of a topic
|The retention period of data in each topic. Unit: day.
|Records written at a time
|The maximum number of records that can be written to a shard at a time.