Class: Hoss::Transport::Worker Private

Inherits:
Object
  • Object
show all
Includes:
Logging
Defined in:
lib/hoss/transport/worker.rb

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Defined Under Namespace

Classes: FlushMessage, StopMessage

Constant Summary

Constants included from Logging

Logging::LEVELS, Logging::PREFIX

Class Attribute Summary collapse

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Logging

#debug, #error, #fatal, #info, #warn

Constructor Details

#initialize(config, queue, serializers:, filters:) ⇒ Worker

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of Worker.



44
45
46
47
48
49
50
51
52
53
54
55
56
57
 
# File 'lib/hoss/transport/worker.rb', line 44

def initialize(
  config,
  queue,
  serializers:,
  filters:
)
  @config = config
  @queue = queue

  @serializers = serializers
  @filters = filters

  @connection = self.class.adapter.new(config)
end

Class Attribute Details

.adapter ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



31
32
33
 
# File 'lib/hoss/transport/worker.rb', line 31

def adapter
  @adapter ||= Connection
end

Instance Attribute Details

#config ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



59
60
61
 
# File 'lib/hoss/transport/worker.rb', line 59

def config
  @config
end

#connection ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



59
60
61
 
# File 'lib/hoss/transport/worker.rb', line 59

def connection
  @connection
end

#filters ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



59
60
61
 
# File 'lib/hoss/transport/worker.rb', line 59

def filters
  @filters
end

#name ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



59
60
61
 
# File 'lib/hoss/transport/worker.rb', line 59

def name
  @name
end

#queue ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



59
60
61
 
# File 'lib/hoss/transport/worker.rb', line 59

def queue
  @queue
end

#serializers ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



59
60
61
 
# File 'lib/hoss/transport/worker.rb', line 59

def serializers
  @serializers
end

Instance Method Details

#work_forever ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
 
# File 'lib/hoss/transport/worker.rb', line 60

def work_forever
  
  done = false
  while (!done && msg = queue.pop)
    begin
      debug 'working message', msg

      # wait if we don't have a config
      while config.agentConfig.nil?
        sleep 0.1
      end

      case msg
      when StopMessage
        debug 'Stopping worker -- %s', self
        done = true
        break
      else
        batch = []
        current_batch_size = 0

        # Use this as the first message in the batch
        event = msg.filtered ? msg : filter_resource(msg)
        unless event.nil?
          event_size = resource_size(event)
          if current_batch_size + event_size <= @config.batch_size
            unless host_blacklisted(event)
              current_batch_size += event_size
              if event.retries < @config.max_event_retries
                batch.push(event)
              else
                debug "max retries hit for event"
              end
            end
          else
            debug "Event is too large, body needs to be truncated"
          end
        end

        # Do inner loop reading queue to build report
        requeue_messages = []
        while current_batch_size < @config.batch_size && !queue.empty?
          next_msg = queue.pop
          case next_msg
          when StopMessage
            debug 'Stopping worker -- %s', self
            done = true
            break
          else
            event = next_msg.filtered ? next_msg : filter_resource(next_msg)
            unless event.nil?
              event_size = resource_size(event)
              if current_batch_size + event_size <= @config.batch_size
                unless host_blacklisted(event)
                  current_batch_size += event_size
                  if event.retries < @config.max_event_retries
                    batch.push(event)
                  else
                    debug "max retries hit for event"
                  end
                end
              else
                debug "Event too large for this batch, requeue"
                requeue_messages.push(event)
              end
            end
          end
        end

        if batch.length == 0
          debug "batch is empty, breaking"
          break
        end

        debug "Requeue #{requeue_messages.length} messages" if requeue_messages.length > 0
        requeue_messages.each {|msg| queue.push(msg, false) }

        report = Report.new
        report.events = batch.map {|event| serializers.serialize(event) }

        debug "Finished building report"
        data = serializers.serialize(report)
        json = JSON.fast_generate(data)
        begin
          debug json
        rescue Exception => e
          debug 'unable to print body'
          puts json if config.debug
        end
        begin
          if config.disable_reporting
            debug "Reprting disabled, skipping"
          else
            connection.write(json)
          end
        rescue Exception => e
          error format('Failed send report: %s %s', e.inspect, e.backtrace)
          batch.each do |m|
            m.retries += 1
            queue.push(m, false)
          end
          sleep 1
        end
      end
    rescue Exception => e
      debug "error in worker #{e.inspect}"
    end
  end
rescue Exception => e
  warn 'Worker died with exception: %s', e.inspect
  debug e.backtrace.join("\n")
end