redis cluster_error ai_generated true

CROSSSLOT Keys in request dont hash to the same slot

ID: redis/crossslot-error

Also available as: JSON · Markdown
82%Fix Rate
86%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
7 active — — —

Root Cause

Multi-key operation spans multiple hash slots in cluster mode.

generic

Workarounds

  1. 92% success Use hash tags to colocate related keys: {user:1}:name, {user:1}:email
  2. 85% success Refactor to single-key operations or Lua scripts per slot

Dead Ends

Common approaches that don't work:

  1. Move all keys to one node 85% fail

    Defeats purpose of clustering

  2. Disable cluster mode 80% fail

    Loses horizontal scaling