TestWebHdfsTimeouts fails on Linux, in my case,
However, the test succeeds on Mac. It seems this is due to a change on backlog queue implementation since Linux 2.2. See http://veithen.github.io/2014/01/01/how-tcp-backlog-works-in-linux.html. Therefore, consumeConnectionBacklog doesn't work as intended under Linux. We should figure out a way to fix this or disable the relevant tests.