WHY ?

I have no idea, but someone ask about it

HOW ?

  • Backup, backup again and again just to be sure
  •  In your 2.4 redis.conf, set the following properties to zero ; hash-max-zipmap-entries, list-max-ziplist-entries, set-max-intset-entries
  • Restart redis and do SAVE command OR BGSAVE
  • Edit dump.rdb file. Change first character to REDIS0001
  • Copy to 2.0 instance and restart redis.