redis data_error ai_generated true

Pub/Sub: messages lost during subscriber disconnect

ID: redis/pub-sub-message-lost

Also available as: JSON · Markdown
75%Fix Rate
80%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
7 active — — —

Root Cause

Redis Pub/Sub messages lost when subscriber disconnects.

generic

Workarounds

  1. 92% success Use Redis Streams instead of Pub/Sub for durable messaging
  2. 90% success Implement message acknowledgment with consumer groups

Dead Ends

Common approaches that don't work:

  1. Use large buffer to store messages 78% fail

    Memory exhaustion

  2. Send messages multiple times 72% fail

    Duplicates for connected subscribers