es-find-unassigned-indexes

#!/usr/bin/env ruby

#
# Copyright (C) 2014 - S. Zachariah Sprackett <zac@sprackett.com>
#

require 'rubygems'
require 'json'
require 'open-uri'

state_json = open('http://localhost:9200/_cluster/state').read
state = JSON.parse(state_json)

unless state.kind_of?(Hash) and
  state.has_key?('routing_nodes') and
  state['routing_nodes'].kind_of?(Hash) and
  state['routing_nodes'].has_key?('unassigned') and
  state['routing_nodes']['unassigned'].kind_of?(Array)

    warn "Failed to retrieve and parse state"
    exit 1
end

indexes = []
state['routing_nodes']['unassigned'].each do |u|
  if u.kind_of?(Hash) and u.has_key?('index') and
    not indexes.include?(u['index'])
      puts u['index']
      indexes << u['index']
  end
end