Methods
Included Modules
Classes and Modules
Class PhusionPassenger::AnalyticsLogger::Log
Class PhusionPassenger::AnalyticsLogger::SharedData
Constants
RETRY_SLEEP = 0.2
NETWORK_ERRORS = [Errno::EPIPE, Errno::ECONNREFUSED, Errno::ECONNRESET, Errno::EHOSTUNREACH, Errno::ENETDOWN, Errno::ENETUNREACH, Errno::ETIMEDOUT]
RANDOM_CHARS = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9']
Attributes
[RW] max_connect_tries
[RW] reconnect_timeout
Public Class methods
new(logging_agent_address, username, password, node_name)
     # File lib/phusion_passenger/analytics_logger.rb, line 145
145:         def initialize(logging_agent_address, username, password, node_name)
146:                 @server_address = logging_agent_address
147:                 @username = username
148:                 @password = password
149:                 if node_name && !node_name.empty?
150:                         @node_name = node_name
151:                 else
152:                         @node_name = `hostname`.strip
153:                 end
154:                 @random_dev = File.open("/dev/urandom")
155:                 @shared_data = SharedData.new
156:                 if @server_address && local_socket_address?(@server_address)
157:                         @max_connect_tries = 10
158:                 else
159:                         @max_connect_tries = 1
160:                 end
161:                 @reconnect_timeout = 60
162:                 @next_reconnect_time = Time.utc(1980, 1, 1)
163:         end
new_from_options(options)
     # File lib/phusion_passenger/analytics_logger.rb, line 131
131:         def self.new_from_options(options)
132:                 if options["analytics"] && options["logging_agent_address"]
133:                         return new(options["logging_agent_address"],
134:                                 options["logging_agent_username"],
135:                                 options["logging_agent_password_base64"].unpack('m').first,
136:                                 options["node_name"])
137:                 else
138:                         return nil
139:                 end
140:         end
Public Instance methods
clear_connection()
     # File lib/phusion_passenger/analytics_logger.rb, line 165
165:         def clear_connection
166:                 @shared_data.synchronize do
167:                         @random_dev = File.open("/dev/urandom") if @random_dev.closed?
168:                         @shared_data.unref
169:                         @shared_data = SharedData.new
170:                 end
171:         end
close()
     # File lib/phusion_passenger/analytics_logger.rb, line 173
173:         def close
174:                 @shared_data.synchronize do
175:                         @random_dev.close
176:                         @shared_data.unref
177:                         @shared_data = nil
178:                 end
179:         end
continue_transaction(txn_id, group_name, category = :requests, union_station_key = nil)
     # File lib/phusion_passenger/analytics_logger.rb, line 220
220:         def continue_transaction(txn_id, group_name, category = :requests, union_station_key = nil)
221:                 if !@server_address
222:                         return Log.new
223:                 elsif !txn_id || txn_id.empty?
224:                         raise ArgumentError, "Transaction ID may not be empty"
225:                 end
226:                 
227:                 @shared_data.synchronize do
228:                         try_count = 0
229:                         if current_time >= @next_reconnect_time
230:                                 while try_count < @max_connect_tries
231:                                         begin
232:                                                 connect if !connected?
233:                                                 @shared_data.client.write("openTransaction",
234:                                                         txn_id, group_name, "", category,
235:                                                         AnalyticsLogger.timestamp_string,
236:                                                         union_station_key,
237:                                                         true)
238:                                                 return Log.new(@shared_data, txn_id)
239:                                         rescue Errno::ENOENT, *NETWORK_ERRORS
240:                                                 try_count += 1
241:                                                 disconnect(true)
242:                                                 sleep RETRY_SLEEP if try_count < @max_connect_tries
243:                                         rescue Exception => e
244:                                                 disconnect
245:                                                 raise e
246:                                         end
247:                                 end
248:                                 # Failed to connect.
249:                                 DebugLogging.warn("Cannot connect to the logging agent (#{@server_address}); " +
250:                                         "retrying in #{@reconnect_timeout} seconds.")
251:                                 @next_reconnect_time = current_time + @reconnect_timeout
252:                         end
253:                         return Log.new
254:                 end
255:         end
new_transaction(group_name, category = :requests, union_station_key = nil)
     # File lib/phusion_passenger/analytics_logger.rb, line 181
181:         def new_transaction(group_name, category = :requests, union_station_key = nil)
182:                 if !@server_address
183:                         return Log.new
184:                 elsif !group_name || group_name.empty?
185:                         raise ArgumentError, "Group name may not be empty"
186:                 end
187:                 
188:                 txn_id = (AnalyticsLogger.current_time.to_i / 60).to_s(36)
189:                 txn_id << "-#{random_token(11)}"
190:                 @shared_data.synchronize do
191:                         try_count = 0
192:                         if current_time >= @next_reconnect_time
193:                                 while try_count < @max_connect_tries
194:                                         begin
195:                                                 connect if !connected?
196:                                                 @shared_data.client.write("openTransaction",
197:                                                         txn_id, group_name, "", category,
198:                                                         AnalyticsLogger.timestamp_string,
199:                                                         union_station_key,
200:                                                         true)
201:                                                 return Log.new(@shared_data, txn_id)
202:                                         rescue Errno::ENOENT, *NETWORK_ERRORS
203:                                                 try_count += 1
204:                                                 disconnect(true)
205:                                                 sleep RETRY_SLEEP if try_count < @max_connect_tries
206:                                         rescue Exception => e
207:                                                 disconnect
208:                                                 raise e
209:                                         end
210:                                 end
211:                                 # Failed to connect.
212:                                 DebugLogging.warn("Cannot connect to the logging agent (#{@server_address}); " +
213:                                         "retrying in #{@reconnect_timeout} seconds.")
214:                                 @next_reconnect_time = current_time + @reconnect_timeout
215:                         end
216:                         return Log.new
217:                 end
218:         end