ab is erroring out with apr_socket_recv: Connection refused (61)

Question

I am testing eventlet out, and I am getting this error:

~>ab -n 10 -c 1 http://localhost:8090/
This is ApacheBench, Version 2.3 <$Revision: 655654 $>         


        

Answer 1

Another related bug that is still present in ab (apache-2.4.29) is that it takes just the first result from getaddrinfo. It's probably this bug that is mentioned by Jürgen Strobel in a comment. Let's say you have /etc/hosts that goes like this:

127.0.0.1   localhost.localdomain   localhost
::1     localhost.localdomain   localhost

The first result returned by getaddrinfo for localhost is ::1. So ab tries to connect over IPv6 and fails. The workaround is to use 127.0.0.1: ab -n 10 127.0.0.1/. Or reorder the lines. Though, in my case it says:

Benchmarking localhost (be patient)...apr_socket_recv: Connection refused (111)