redis memory_error ai_generated true

Active defragmentation: fragmentation ratio too high

ID: redis/memory-defragmentation

Also available as: JSON · Markdown
78%Fix Rate
82%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
7 active — — —

Root Cause

Redis memory fragmented, using more RSS than actual data.

generic

Workarounds

  1. 88% success Enable active defrag: CONFIG SET activedefrag yes
  2. 90% success Monitor with INFO MEMORY: mem_fragmentation_ratio

Dead Ends

Common approaches that don't work:

  1. Restart Redis to defragment 72% fail

    Service disruption

  2. Increase maxmemory to cover fragmentation 68% fail

    Wastes RAM