ERR redis resource_error ai_generated true

ERR max client buffer limit exceeded: output buffer for client 0x7f1234567890

ID: redis/max-client-buffer-limit-exceeded

Also available as: JSON · Markdown · 中文
88%Fix Rate
85%Confidence
1Evidence
2023-03-15First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
redis 6.0 active — — —
redis 7.0 active — — —
redis 7.2 active — — —

Root Cause

Redis client output buffer exceeded configured limit, causing connection termination.

generic

中文

Redis 客户端输出缓冲区超过配置限制，导致连接被终止。

Official Documentation

https://redis.io/docs/latest/develop/reference/clients/#output-buffer-limits

Workarounds

  1. 85% success Use CLIENT LIST to identify problematic client, then increase client-output-buffer-limit for that client type in redis.conf: client-output-buffer-limit pubsub 64mb 32mb 60 
    Use CLIENT LIST to identify problematic client, then increase client-output-buffer-limit for that client type in redis.conf:
client-output-buffer-limit pubsub 64mb 32mb 60
  2. 90% success Optimize consumer code to process messages faster or use a message queue to decouple Redis from slow consumers. 
    Optimize consumer code to process messages faster or use a message queue to decouple Redis from slow consumers.

中文步骤

  1. 使用 CLIENT LIST 命令识别问题客户端，然后在 redis.conf 中增加该客户端类型的输出缓冲区限制：
client-output-buffer-limit pubsub 64mb 32mb 60
  2. 优化消费者代码以更快处理消息，或使用消息队列将 Redis 与慢消费者解耦。

Dead Ends

Common approaches that don't work:

  1. 65% fail

    Increasing output buffer limit globally may mask underlying issue of slow consumers.

  2. 80% fail

    Restarting Redis server without addressing buffer configuration only provides temporary relief.