I am using Tsung for load testing. I have set up Erlang/OTP R16B03-1 and Tsung 1.5.1 on CentOS 6.4 and openssl 1.0.1e-fips. Everything was successfully compiled except when running ./configure for Tsung, there is a warning:
WARNING: ssl application is not working properly !!!
Now when I run Tsung to load testing my https server, it gives me this error:
Unable to load crypto library. Failed with error: "load_failed, Failed to load NIF library: '/usr/local/lib/erlang/lib/crypto-3.2/priv/lib/crypto.so: undefined symbol: EC_GROUP_new_curve_GF2m'" OpenSSL might not be installed on this system.
I am aware of the openssl EC crypto issues in Centos/RHEL (See http://erlang.org/pipermail/erlang-questions/2014-February/076760.html) but did not find the solution to this problem. Should I update openssl or recompile Erlang with no EC option?
I found it! Just reinstall erlang from sources. I downloaded 17-th version of it. http://www.erlang.org/download/otp_src_17.0.tar.gz And everythign works fine! Also check this out: https://github.com/ngocdaothanh/tsart/blob/master/amazonlinux.md
Everything is cool there except version of Erlang and Tsung. So I choosed 17-th version of erlang and 1.5.1 of Tsung. I spent almost 2 days to configure it.