[GitHub] [apisix] suninuni commented on issue #7949: bug: As route and stream keep creating and deleting, the memory keeps growing

[GitBox <gi...@apache.org>]

suninuni commented on issue #7949:
URL: https://github.com/apache/apisix/issues/7949#issuecomment-1301597993

   > The latest prometheus lib would make use of the lru characteristic of the shared dict to evict the oldest keys, so no need to worry about it.
   
   I replace the latest prometheus lib files (`/usr/local/apisix/deps/share/lua/5.1/prometheus.lua` `prometheus_keys.lua` `prometheus_resty_counter.lua`) in apisix 2.15.0 image from https://github.com/knyar/nginx-lua-prometheus master branch.
   
   But when the lua_shared_dict(10m for prometheus-metrics) is used up, there whill still have errors like `*27324521 [lua] prometheus.lua:953: log_error(): Unexpected error adding a key: no memory while logging request,`. It looks like prometheus lib doesn't evict the oldest keys.
   


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