class Elasticsearch::Transport::Transport::Sniffer
Handles node discovery (“sniffing”)
Constants
- PROTOCOL
Attributes
timeout[RW]
transport[R]
Public Class Methods
new(transport)
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@param transport [Object] A transport instance
# File lib/elasticsearch/transport/transport/sniffer.rb, line 15 def initialize(transport) @transport = transport @timeout = transport.options[:sniffer_timeout] || 1 end
Public Instance Methods
hosts()
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Retrieves the node list from the Elasticsearch’s [_Nodes Info API_](www.elasticsearch.org/guide/reference/api/admin-cluster-nodes-info/) and returns a normalized Array of information suitable for passing to transport.
Shuffles the collection before returning it when the ‘randomize_hosts` option is set for transport.
@return [Array<Hash>] @raise [SnifferTimeoutError]
# File lib/elasticsearch/transport/transport/sniffer.rb, line 29 def hosts Timeout::timeout(timeout, SnifferTimeoutError) do nodes = transport.perform_request('GET', '_nodes/http').body hosts = nodes['nodes'].map do |id,info| if info[PROTOCOL] host, port = info[PROTOCOL]['publish_address'].split(':') { :id => id, :name => info['name'], :version => info['version'], :host => host, :port => port, :roles => info['roles'], :attributes => info['attributes'] } end end.compact hosts.shuffle! if transport.options[:randomize_hosts] hosts end end