redis startup_error ai_generated true

LOADING Redis is loading the dataset in memory

ID: redis/loading-dataset-in-memory

Also available as: JSON · Markdown
90%Fix Rate
91%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
7 active — — —

Root Cause

Redis is still loading the RDB/AOF dataset into memory after a restart. All commands are rejected until loading completes.

generic

Workarounds

  1. 92% success Wait for loading to complete; monitor progress with INFO 
    redis-cli INFO persistence  # check loading_eta_seconds and loading_loaded_perc

    Sources: https://redis.io/docs/latest/operate/oss_and_stack/management/

  2. 88% success Configure application retry logic to handle transient LOADING state 
    Retry with exponential backoff on LOADING errors; typical load time: 1s per GB on SSD
  3. 80% success Reduce dataset size or use faster storage for quicker startup 
    Use SSD instead of HDD; enable lazyfree-lazy-expire to reduce dataset size

Dead Ends

Common approaches that don't work:

  1. Kill and restart Redis again to speed up loading 90% fail

    Restarting resets the loading process from zero; makes recovery take even longer

  2. Delete the dump.rdb/appendonly.aof file to skip loading 88% fail

    Deletes all persisted data permanently; Redis starts empty