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Known Limitations

Listed below are known Dragonfly limitations:

  • Each Dragonfly instance can handle up to two billion keys.
  • Lists, Sets and Hashes can contain up to two billion values.
  • The expiration limit for keys is 2^28 seconds, which is around 8 years.
  • Each command can contain up to 2^16 arguments (can be changed with the max_multi_bulk_len flag).
  • Each argument can be up to 256MB bytes long.
  • String values are limited to a size of 256MB.