Use logstash to copy index on same cluster - elasticsearch

Question

I have an ES 1.7.1 cluster and I wanted to "reindex" an Index. Since I cannot use _reindex I came across this tutorial to use logstash to copy an index onto a different cluster. However in my case I want to copy it over to the same cluster. This is my logstash.conf :
input {
# We read from the "old" cluster
elasticsearch {
hosts => "myhost"
port => "9200"
index => "my_index"
size => 500
scroll => "5m"
docinfo => true
}
}
output {
# We write to the "new" cluster
elasticsearch {
host => "myhost"
port => "9200"
protocol => "http"
index => "logstash_test"
index_type => "%{[#metadata][_type]}"
document_id => "%{[#metadata][_id]}"
}
# We print dots to see it in action
stdout {
codec => "dots"
}
}
filter {
mutate {
remove_field => [ "#timestamp", "#version" ]
}
}
This errors out with the following error message:
A plugin had an unrecoverable error. Will restart this plugin.
Plugin: <LogStash::Inputs::Elasticsearch hosts=>[{:scheme=>"http", :user=>nil, :password=>nil, :host=>"myhost", :path=>"", :port=>"80", :protocol=>"http"}], index=>"my_index", scroll=>"5m", query=>"{\"query\": { \"match_all\": {} } }", docinfo_target=>"#metadata", docinfo_fields=>["_index", "_type", "_id"]>
Error: Connection refused - Connection refused {:level=>:error}
Failed to install template: http: nodename nor servname provided, or not known {:level=>:error}
Any help would be appreciated