redis performance_error ai_generated true

ERR: Latency monitor threshold exceeded for command 'GET'

ID: redis/latency-monitor-threshold-exceeded

Also available as: JSON · Markdown · 中文
85%Fix Rate
85%Confidence
1Evidence
2024-03-15First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
Redis 6.2 active — — —
Redis 7.0 active — — —
Redis 7.2 active — — —

Root Cause

A command execution time exceeded the latency-monitor-threshold, indicating a slow operation or system overload.

generic

中文

某个命令的执行时间超过了延迟监控阈值，表明操作缓慢或系统过载。

Official Documentation

https://redis.io/docs/latest/develop/use/client-side-caching/

Workarounds

  1. 85% success Identify the slow command using SLOWLOG GET and optimize it (e.g., reduce key size, use pipelining, or split large operations). 
    Identify the slow command using SLOWLOG GET and optimize it (e.g., reduce key size, use pipelining, or split large operations).
  2. 70% success Run: redis-cli --latency to check network latency; if high, move Redis closer to the client or use a faster network. 
    Run: redis-cli --latency to check network latency; if high, move Redis closer to the client or use a faster network.

中文步骤

  1. 使用 SLOWLOG GET 识别慢命令并优化（例如减小键大小、使用管道或拆分大操作）。
  2. 运行：redis-cli --latency 检查网络延迟；如果高，将 Redis 移动到更靠近客户端的位置或使用更快的网络。

Dead Ends

Common approaches that don't work:

  1. Increase latency-monitor-threshold to a very high value 40% fail

    Masking the symptom without addressing root cause (e.g., slow commands, large keys, or network issues).

  2. Disable latency monitoring entirely with CONFIG SET latency-monitor-threshold 0 30% fail

    Removes visibility into performance issues, making debugging harder later.