ERR redis runtime_error ai_generated true

运行脚本时出错（调用 f_<sha>）：@user_script: <line>：Lua 脚本堆栈溢出

ERR Error running script (call to f_<sha>): @user_script: <line>: Stack overflow in Lua script

ID: redis/lua-script-stack-overflow

其他格式: JSON · Markdown 中文 · English
75%修复率
82%置信度
1证据数
2023-04-10首次发现

版本兼容性

版本状态引入弃用备注
redis 7.0 active — — —
redis 7.2 active — — —
redis 6.2 active — — —
redis 5.0 active — — —

根因分析

Lua 脚本超过了最大调用堆栈深度，通常是由于深度递归或过多嵌套函数调用。

English

Lua script exceeded the maximum call stack depth, typically due to deep recursion or excessive nested function calls.

generic

官方文档

https://redis.io/docs/latest/develop/interact/programmability/lua-api/

解决方案

  1. Refactor the Lua script to use iterative loops instead of recursion, e.g., replace recursive function with a while loop:
while condition do ... end
  2. Reduce the depth of nested function calls by flattening logic or using tail-recursive calls if Lua version supports (Redis Lua 5.1 does not).

无效尝试

常见但无效的做法:

  1. 95% 失败

    Redis does not expose a Lua stack size configuration; the limit is hardcoded.

  2. 50% 失败

    The script execution mechanism is the same; the error is script logic, not caching.

  3. 80% 失败

    Stack overflow is a call depth issue, not a memory allocation issue; more memory does not increase stack depth.