kentaro/serf-hosts — pull request #3 by tacahilo (2014-08-12 10:27:26+00:00)
Title: Don't execute when serf invokes member-failed

Because `member-failed` doesn't mean that a host disappears,
it's better not to remove the hosts if serf detects `member-failed`.

For example,
when a host has a temporary high load average,
serf often falls into __failed__.