bugfix: Semaphore not cleaned up on request timeout #2426
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After a ngx.semaphore.wait() call, if the current request is terminated by Nginx due to client_header_timeout or client_body_timeout, the corresponding post() is never executed. As a result, all subsequent attempts to wait() on the same semaphore hang until they time out, because the semaphore count was never restored. openresty#2422
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After a ngx.semaphore.wait() call, if the current request is terminated by Nginx due to client_header_timeout or client_body_timeout, the corresponding post() is never executed. As a result, all subsequent attempts to wait() on the same semaphore hang until they time out, because the semaphore count was never restored.
#2422
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to the authors of this lua-nginx-module project.