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cluster addslots

CLUSTER

CLUSTER ADDSLOTS slot [slot ...]

Available since 3.0.0.

Time complexity: O(N) where N is the total number of hash slot arguments

This command is useful in order to modify a node's view of the cluster configuration. Specifically it assigns a set of hash slots to the node receiving the command. If the command is successful, the node will map the specified hash slots to itself, and will start broadcasting the new configuration.

However note that:

  1. The command only works if all the specified slots are, from the point of view of the node receiving the command, currently not assigned. A node will refuse to take ownership for slots that already belong to some other node (including itself).
  2. The command fails if the same slot is specified multiple times.
  3. As a side effect of the command execution, if a slot among the ones specified as