test_mysql2.rb

#!/usr/bin/env ruby

require "rubygems"
require "mysql2"

puts "ruby #{RUBY_VERSION}"
puts "mysql2"

config = {
  database: "apitest",
  host: "10.193.15.203",
  password: "...",
  port: 1433,
  username: "amapi",
  connect_timeout: 5
}

Thread.new do
  10.times do
    puts "THR1: #{Time.now}"
    sleep 1
  end
end

Thread.new do
  puts "THR2: #{Time.now} START"
  begin
    Mysql2::Client.new(config)
    puts "THR2: #{Time.now} DONE"
  rescue Exception => e
    puts "THR2: #{Time.now} FAIL #{e.message}"
  end
end

10.times do
  puts "MAIN: #{Time.now}"
  sleep 1
end