从 9万 QPS 到 6千：一次压测暴露的 15 倍性能黑洞，我们如何用 OpenResty XRay 定位根因
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Lua Resty Lock Library
Yichun Zhang , 30 Sep 2013 (created 30 Sep 2013)This Lua library implements a simple nonblocking mutex lock API based on Lua Nginx Module's shared memory dictionaries. Mostly useful for eliminating "dog-pile effects".
Project homepage: https://github.com/agentzh/lua-resty-lock
This library is enabled by default. You can specify the --without-lua_resty_lock option
to OpenResty's ./configure script to explicitly disable it.
