Module: NewRelic::Agent::Agent::InstanceMethods
- Includes:
- Connect, Start, StartWorkerThread
- Included in:
- NewRelic::Agent::Agent
- Defined in:
- lib/new_relic/agent/agent.rb
Overview
Holds all the methods defined on NewRelic::Agent::Agent instances
Defined Under Namespace
Modules: Connect, Start, StartWorkerThread
Instance Attribute Summary collapse
-
#agent_command_router ⇒ Object
readonly
Returns the value of attribute agent_command_router.
-
#beacon_configuration ⇒ Object
readonly
a configuration for the Real User Monitoring system - handles things like static setup of the header for inclusion into pages.
-
#cross_app_encoding_bytes ⇒ Object
readonly
Returns the value of attribute cross_app_encoding_bytes.
-
#cross_app_monitor ⇒ Object
readonly
Returns the value of attribute cross_app_monitor.
-
#cross_process_id ⇒ Object
readonly
cross application tracing ids and encoding.
-
#error_collector ⇒ Object
readonly
error collector is a simple collection of recorded errors.
-
#events ⇒ Object
readonly
Global events dispatcher.
-
#harvest_samplers ⇒ Object
readonly
Returns the value of attribute harvest_samplers.
-
#metric_rules ⇒ Object
readonly
Returns the value of attribute metric_rules.
-
#obfuscator ⇒ Object
readonly
holds a proc that is used to obfuscate sql statements.
-
#record_sql ⇒ Object
readonly
whether we should record raw, obfuscated, or no sql.
-
#service ⇒ Object
service for communicating with collector.
-
#sql_sampler ⇒ Object
readonly
Returns the value of attribute sql_sampler.
-
#stats_engine ⇒ Object
readonly
the statistics engine that holds all the timeslice data.
-
#thread_profiler ⇒ Object
readonly
begins a thread profile session when instructed by agent commands.
-
#transaction_rules ⇒ Object
readonly
Transaction and metric renaming rules as provided by the collector on connect.
-
#transaction_sampler ⇒ Object
readonly
the transaction sampler that handles recording transactions.
Attributes included from Connect
Instance Method Summary collapse
- #add_harvest_sampler(subclass) ⇒ Object
-
#after_fork(options = {}) ⇒ Object
This method should be called in a forked process after a fork.
-
#agent_should_start? ⇒ Boolean
Check to see if the agent should start, returning
true
if it should. - #defer_for_delayed_job? ⇒ Boolean
-
#end_transaction ⇒ Object
Tells the statistics engine we are ending a transaction.
-
#merge_data_from(data) ⇒ Object
Accepts an array of (metrics, transaction_traces, errors) and merges it into our current collection of data to send.
-
#pop_trace_execution_flag ⇒ Object
Pop the current trace execution status.
-
#push_trace_execution_flag(should_trace = false) ⇒ Object
Push flag indicating whether we should be tracing in this thread.
-
#record_transaction(duration_seconds, options = {}) ⇒ Object
fakes out a transaction that did not happen in this process by creating apdex, summary metrics, and recording statistics for the transaction.
-
#reset_objects_with_locks ⇒ Object
Clear out state for any objects that we know lock from our parents This is necessary for cases where we’re in a forked child and Ruby might be holding locks for background thread that aren’t there anymore.
-
#reset_stats ⇒ Object
Clear out the metric data, errors, and transaction traces, making sure the agent is in a fresh state.
-
#set_record_sql(should_record) ⇒ Object
Sets a thread local variable as to whether we should or should not record sql in the current thread.
-
#set_record_tt(should_record) ⇒ Object
Sets a thread local variable as to whether we should or should not record transaction traces in the current thread.
-
#shutdown(options = {}) ⇒ Object
Attempt a graceful shutdown of the agent, running the worker loop if it exists and is running.
-
#start ⇒ Object
Logs a bunch of data and starts the agent, if needed.
-
#start_transaction ⇒ Object
Tells the statistics engine we are starting a new transaction.
-
#started? ⇒ Boolean
True if we have initialized and completed ‘start’.
-
#unsent_errors_size ⇒ Object
Returns the length of the unsent errors array, if it exists, otherwise nil.
-
#unsent_timeslice_data ⇒ Object
Initializes the unsent timeslice data hash, if needed, and returns the number of keys it contains.
-
#unsent_traces_size ⇒ Object
Returns the length of the traces array, if it exists, otherwise nil.
Methods included from Connect
#add_rules_to_engine, #apdex_f, #connect_retry_period, #connect_settings, #connect_to_server, #connected?, #disconnect, #disconnected?, #environment_for_connect, #finish_setup, #generate_environment_report, #handle_license_error, #handle_unrecoverable_agent_error, #log_collector_messages, #log_connection!, #log_error, #note_connect_failure, #query_server_for_configuration, #should_connect?
Methods included from StartWorkerThread
#catch_errors, #create_and_run_worker_loop, #deferred_work!, #handle_force_disconnect, #handle_force_restart, #handle_other_error, #handle_server_connection_problem, #log_worker_loop_start
Methods included from Start
#already_started?, #app_name_configured?, #check_config_and_start_agent, #connect_in_foreground, #correct_license_length, #defer_for_resque?, #disabled?, #has_correct_license_key?, #has_license_key?, #install_exit_handler, #log_app_name, #log_dispatcher, #log_environment, #log_startup, #log_version_and_pid, #monitoring?, #using_forking_dispatcher?, #using_sinatra?, #weird_ruby?
Instance Attribute Details
#agent_command_router ⇒ Object (readonly)
Returns the value of attribute agent_command_router.
87 88 89 |
# File 'lib/new_relic/agent/agent.rb', line 87 def agent_command_router @agent_command_router end |
#beacon_configuration ⇒ Object (readonly)
a configuration for the Real User Monitoring system - handles things like static setup of the header for inclusion into pages
96 97 98 |
# File 'lib/new_relic/agent/agent.rb', line 96 def beacon_configuration @beacon_configuration end |
#cross_app_encoding_bytes ⇒ Object (readonly)
Returns the value of attribute cross_app_encoding_bytes.
99 100 101 |
# File 'lib/new_relic/agent/agent.rb', line 99 def cross_app_encoding_bytes @cross_app_encoding_bytes end |
#cross_app_monitor ⇒ Object (readonly)
Returns the value of attribute cross_app_monitor.
100 101 102 |
# File 'lib/new_relic/agent/agent.rb', line 100 def cross_app_monitor @cross_app_monitor end |
#cross_process_id ⇒ Object (readonly)
cross application tracing ids and encoding
98 99 100 |
# File 'lib/new_relic/agent/agent.rb', line 98 def cross_process_id @cross_process_id end |
#error_collector ⇒ Object (readonly)
error collector is a simple collection of recorded errors
89 90 91 |
# File 'lib/new_relic/agent/agent.rb', line 89 def error_collector @error_collector end |
#events ⇒ Object (readonly)
Global events dispatcher. This will provides our primary mechanism for agent-wide events, such as finishing configuration, error notification and request before/after from Rack.
106 107 108 |
# File 'lib/new_relic/agent/agent.rb', line 106 def events @events end |
#harvest_samplers ⇒ Object (readonly)
Returns the value of attribute harvest_samplers.
90 91 92 |
# File 'lib/new_relic/agent/agent.rb', line 90 def harvest_samplers @harvest_samplers end |
#metric_rules ⇒ Object (readonly)
Returns the value of attribute metric_rules.
111 112 113 |
# File 'lib/new_relic/agent/agent.rb', line 111 def metric_rules @metric_rules end |
#obfuscator ⇒ Object (readonly)
holds a proc that is used to obfuscate sql statements
79 80 81 |
# File 'lib/new_relic/agent/agent.rb', line 79 def obfuscator @obfuscator end |
#record_sql ⇒ Object (readonly)
whether we should record raw, obfuscated, or no sql
92 93 94 |
# File 'lib/new_relic/agent/agent.rb', line 92 def record_sql @record_sql end |
#service ⇒ Object
service for communicating with collector
102 103 104 |
# File 'lib/new_relic/agent/agent.rb', line 102 def service @service end |
#sql_sampler ⇒ Object (readonly)
Returns the value of attribute sql_sampler.
84 85 86 |
# File 'lib/new_relic/agent/agent.rb', line 84 def sql_sampler @sql_sampler end |
#stats_engine ⇒ Object (readonly)
the statistics engine that holds all the timeslice data
81 82 83 |
# File 'lib/new_relic/agent/agent.rb', line 81 def stats_engine @stats_engine end |
#thread_profiler ⇒ Object (readonly)
begins a thread profile session when instructed by agent commands
86 87 88 |
# File 'lib/new_relic/agent/agent.rb', line 86 def thread_profiler @thread_profiler end |
#transaction_rules ⇒ Object (readonly)
Transaction and metric renaming rules as provided by the collector on connect. The former are applied during txns, the latter during harvest.
110 111 112 |
# File 'lib/new_relic/agent/agent.rb', line 110 def transaction_rules @transaction_rules end |
#transaction_sampler ⇒ Object (readonly)
the transaction sampler that handles recording transactions
83 84 85 |
# File 'lib/new_relic/agent/agent.rb', line 83 def transaction_sampler @transaction_sampler end |
Instance Method Details
#add_harvest_sampler(subclass) ⇒ Object
542 543 544 |
# File 'lib/new_relic/agent/agent.rb', line 542 def add_harvest_sampler(subclass) @harvest_samplers.add_sampler(subclass) end |
#after_fork(options = {}) ⇒ Object
This method should be called in a forked process after a fork. It assumes the parent process initialized the agent, but does not assume the agent started.
The call is idempotent, but not re-entrant.
-
It clears any metrics carried over from the parent process
-
Restarts the sampler thread if necessary
-
Initiates a new agent run and worker loop unless that was done in the parent process and
:force_reconnect
is not true
Options:
-
:force_reconnect => true
to force the spawned process to establish a new connection, such as when forking a long running process. The default is false–it will only connect to the server if the parent had not connected. -
:keep_retrying => false
if we try to initiate a new connection, this tells me to only try it once so this method returns quickly if there is some kind of latency with the server.
187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 |
# File 'lib/new_relic/agent/agent.rb', line 187 def after_fork(={}) Agent.config.apply_config(NewRelic::Agent::Configuration::ManualSource.new(), 1) if channel_id = [:report_to_channel] @service = NewRelic::Agent::PipeService.new(channel_id) if connected? @connected_pid = $$ else ::NewRelic::Agent.logger.debug("Child process #{$$} not reporting to non-connected parent.") @service.shutdown(Time.now) disconnect end end return if !Agent.config[:agent_enabled] || !Agent.config[:monitor_mode] || disconnected? || @worker_thread && @worker_thread.alive? ::NewRelic::Agent.logger.debug "Starting the worker thread in #{$$} after forking." reset_objects_with_locks # Clear out stats that are left over from parent process reset_stats generate_environment_report start_worker_thread() end |
#agent_should_start? ⇒ Boolean
Check to see if the agent should start, returning true
if it should.
488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 |
# File 'lib/new_relic/agent/agent.rb', line 488 def agent_should_start? return false if already_started? || disabled? if defer_for_delayed_job? ::NewRelic::Agent.logger.debug "Deferring startup for DelayedJob" return false end if defer_for_resque? ::NewRelic::Agent.logger.debug "Deferring startup for Resque in case it daemonizes" return false end unless app_name_configured? NewRelic::Agent.logger.error "No application name configured.", "The Agent cannot start without at least one. Please check your ", "newrelic.yml and ensure that it is valid and has at least one ", "value set for app_name in the #{NewRelic::Control.instance.env} ", "environment." return false end return true end |
#defer_for_delayed_job? ⇒ Boolean
482 483 484 485 |
# File 'lib/new_relic/agent/agent.rb', line 482 def defer_for_delayed_job? NewRelic::Agent.config[:dispatcher] == :delayed_job && !NewRelic::DelayedJobInjection.worker_name end |
#end_transaction ⇒ Object
Tells the statistics engine we are ending a transaction
265 266 267 |
# File 'lib/new_relic/agent/agent.rb', line 265 def end_transaction @stats_engine.end_transaction end |
#merge_data_from(data) ⇒ Object
Accepts an array of (metrics, transaction_traces, errors) and merges it into our current collection of data to send. Can be dangerous if we re-merge the same data more than once - it will be sent multiple times.
842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 |
# File 'lib/new_relic/agent/agent.rb', line 842 def merge_data_from(data) metrics, transaction_traces, errors = data @stats_engine.merge!(metrics) if metrics if transaction_traces && transaction_traces.respond_to?(:any?) && transaction_traces.any? if @traces @traces += transaction_traces else @traces = transaction_traces end end if errors && errors.respond_to?(:each) errors.each do |err| @error_collector.add_to_error_queue(err) end end end |
#pop_trace_execution_flag ⇒ Object
Pop the current trace execution status. Restore trace execution status to what it was before we pushed the current flag.
297 298 299 |
# File 'lib/new_relic/agent/agent.rb', line 297 def pop_trace_execution_flag TransactionState.get.pop_traced end |
#push_trace_execution_flag(should_trace = false) ⇒ Object
Push flag indicating whether we should be tracing in this thread. This uses a stack which allows us to disable tracing children of a transaction without affecting the tracing of the whole transaction
291 292 293 |
# File 'lib/new_relic/agent/agent.rb', line 291 def push_trace_execution_flag(should_trace=false) TransactionState.get.push_traced(should_trace) end |
#record_transaction(duration_seconds, options = {}) ⇒ Object
fakes out a transaction that did not happen in this process by creating apdex, summary metrics, and recording statistics for the transaction
This method is deprecated - it may be removed in future versions of the agent
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 |
# File 'lib/new_relic/agent/agent.rb', line 138 def record_transaction(duration_seconds, ={}) is_error = ['is_error'] || ['error_message'] || ['exception'] metric = ['metric'] metric ||= ['uri'] # normalize this with url rules raise "metric or uri arguments required" unless metric metric_info = NewRelic::MetricParser::MetricParser.for_metric_named(metric) if metric_info.is_web_transaction? NewRelic::Agent::Transaction.record_apdex(metric_info, duration_seconds, duration_seconds, is_error) end metrics = metric_info.summary_metrics metrics << metric metrics.each do |name| NewRelic::Agent.record_metric(name, duration_seconds) end if is_error if ['exception'] e = ['exception'] elsif ['error_message'] e = StandardError.new ['error_message'] else e = StandardError.new 'Unknown Error' end error_collector.notice_error e, :uri => ['uri'], :metric => metric end # busy time ? end |
#reset_objects_with_locks ⇒ Object
Clear out state for any objects that we know lock from our parents This is necessary for cases where we’re in a forked child and Ruby might be holding locks for background thread that aren’t there anymore.
538 539 540 |
# File 'lib/new_relic/agent/agent.rb', line 538 def reset_objects_with_locks @stats_engine = NewRelic::Agent::StatsEngine.new end |
#reset_stats ⇒ Object
Clear out the metric data, errors, and transaction traces, making sure the agent is in a fresh state
526 527 528 529 530 531 532 533 |
# File 'lib/new_relic/agent/agent.rb', line 526 def reset_stats @stats_engine.reset_stats @unsent_errors = [] @traces = nil @unsent_timeslice_data = {} @last_harvest_time = Time.now @launch_time = Time.now end |
#set_record_sql(should_record) ⇒ Object
Sets a thread local variable as to whether we should or should not record sql in the current thread. Returns the previous value, if there is one
272 273 274 275 276 |
# File 'lib/new_relic/agent/agent.rb', line 272 def set_record_sql(should_record) prev = TransactionState.get.record_sql TransactionState.get.record_sql = should_record prev.nil? || prev end |
#set_record_tt(should_record) ⇒ Object
Sets a thread local variable as to whether we should or should not record transaction traces in the current thread. Returns the previous value, if there is one
281 282 283 284 285 |
# File 'lib/new_relic/agent/agent.rb', line 281 def set_record_tt(should_record) prev = TransactionState.get.record_tt TransactionState.get.record_tt = should_record prev.nil? || prev end |
#shutdown(options = {}) ⇒ Object
Attempt a graceful shutdown of the agent, running the worker loop if it exists and is running.
Options: :force_send => (true/false) # force the agent to send data
227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 |
# File 'lib/new_relic/agent/agent.rb', line 227 def shutdown(={}) run_loop_before_exit = Agent.config[:force_send] return if not started? if @worker_loop @worker_loop.run_task if run_loop_before_exit @worker_loop.stop end ::NewRelic::Agent.logger.info "Starting Agent shutdown" # if litespeed, then ignore all future SIGUSR1 - it's # litespeed trying to shut us down if Agent.config[:dispatcher] == :litespeed Signal.trap("SIGUSR1", "IGNORE") Signal.trap("SIGTERM", "IGNORE") end begin NewRelic::Agent.disable_all_tracing do graceful_disconnect end rescue => e ::NewRelic::Agent.logger.error e end NewRelic::Agent.config.remove_config do |config| config.class == NewRelic::Agent::Configuration::ManualSource || config.class == NewRelic::Agent::Configuration::ServerSource end @started = nil Control.reset end |
#start ⇒ Object
Logs a bunch of data and starts the agent, if needed
514 515 516 517 518 519 520 521 522 |
# File 'lib/new_relic/agent/agent.rb', line 514 def start return unless agent_should_start? @started = true @local_host = determine_host log_startup check_config_and_start_agent log_version_and_pid end |
#start_transaction ⇒ Object
Tells the statistics engine we are starting a new transaction
260 261 262 |
# File 'lib/new_relic/agent/agent.rb', line 260 def start_transaction @stats_engine.start_transaction end |
#started? ⇒ Boolean
True if we have initialized and completed ‘start’
218 219 220 |
# File 'lib/new_relic/agent/agent.rb', line 218 def started? @started end |
#unsent_errors_size ⇒ Object
Returns the length of the unsent errors array, if it exists, otherwise nil
115 116 117 |
# File 'lib/new_relic/agent/agent.rb', line 115 def unsent_errors_size @unsent_errors.length if @unsent_errors end |
#unsent_timeslice_data ⇒ Object
Initializes the unsent timeslice data hash, if needed, and returns the number of keys it contains
127 128 129 130 |
# File 'lib/new_relic/agent/agent.rb', line 127 def unsent_timeslice_data @unsent_timeslice_data ||= {} @unsent_timeslice_data.keys.length end |
#unsent_traces_size ⇒ Object
Returns the length of the traces array, if it exists, otherwise nil
121 122 123 |
# File 'lib/new_relic/agent/agent.rb', line 121 def unsent_traces_size @traces.length if @traces end |