Create a collection #

Creates a new collection.

Examples #

The following request creates a new collection called my-collection in the namespace my-namespace:

PUT /my-namespace:my-collection

If creating a collection within the default namespace, it can be simplified as:

PUT /my-collection

Request #

PUT /[<namespace>:]<name>

Path parameters #

• <namespace>
  (Optional, string) The namespace which the collection belongs to. Namespace names must meet the following criteria:
  • Lowercase only
  • Cannot include \ /, *, ?, ", <, >, |, , ,, #
  • Cannot start with -, _, +
  • Cannot be . or ..
  • Cannot be longer than 255 bytes (note it is bytes, so multi-byte characters will count towards the 255 limit faster)
• <name>
  (Required, string) Name of the collection you wish to create. Collection names must meet the same criteria as namespace names.

Request body #

• settings
  Collection settings

  • collection.partitions_sharding_strategy
    (Optional, object) Specifies the initial number of primary shards and how partitions are assigned to them for every rollings in this collection.

    By default, only 1 shard will be created, all the partitions will be assigned to it.

    Supported strategies are listed below:

    • Hash

      "hash": {
        "number_of_shards": <num_shards>
      }
      

      One can specify the total number of shards, partitions are assigned to shards in this way:

      shard_index = hash(partition_id) mod number_of_shards
      

    • Range

      "range": ["0..128, 129..255"]
      

      An array of partition range needs to be provided, every array item represents a shard, the partitions specified in it will be assigned to the shard.

      The above example evenly assigns 256 partitions to 2 shards.

  • collection.partitions_sharding_strategy
    (Optional, Integer) The number of replicas each primary shard has. Defaults to 1.