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BUSYKEY error

RESTORE tried to create a key that already exists.

Redis returns this error when RESTORE would create a key that already exists. RESTORE creates a key from a value that DUMP serialized. By default, it doesn't overwrite an existing key.

BUSYKEY Target key name already exists.

Example

> SET mykey "value"
OK
> RESTORE mykey 0 "<serialized-value>"
(error) BUSYKEY Target key name already exists.

How to fix it

To replace the existing key, add the REPLACE option: RESTORE mykey 0 "<serialized-value>" REPLACE.
To keep the existing key, restore the value under a different key name.

MIGRATE, which moves keys to another Redis server, also has a REPLACE option for keys that already exist on the target server.

BUSYKEY error

Example

How to fix it

On this page