ElasticSaerch unassigned shards reassign

ElasticSearch Unassigned Shards Reassigner

#!/usr/bin/env ruby
require 'json'

es_cluster = 'http://localhost:9200'
master_node = "Howard the Duck" # sey your master node name here

unassigned_shards_info = `curl -s -XGET #{es_cluster}/_cat/shards | grep UNASSIGNED `.split("\n")

shard_indexes = []

unassigned_shards_info.inject(shard_indexes){|acc, index|
  shard = index.split(" ")
  shard_data ||= {}
  shard_data[shard.first] = shard[1]
  acc << shard_data
}

puts "total unassiged shards: #{unassigned_shards_info.size}"
shard_indexes.each {|shard_info|
  shard_info.each {|index, shard|
    puts "reassigning shard no: #{shard} with index #{index} to #{node}"
    payload = {"commands"=> [{"allocate"=>{"index"=>"#{index}", "shard"=>"#{shard}", "node"=>"#{node}", "allow_primary"=>true}}]}
    result =  `curl -s -XPOST #{es_cluster}/_cluster/reroute -d '#{payload.to_json}'`
  }
  sleep 1
}