Module: NewRelic::Agent::AgentHelpers::Harvest

Included in:
NewRelic::Agent::Agent
Defined in:
lib/new_relic/agent/agent_helpers/harvest.rb

Instance Method Summary collapse

Instance Method Details

#check_for_and_handle_agent_commands ⇒ Object 



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# File 'lib/new_relic/agent/agent_helpers/harvest.rb', line 130

def check_for_and_handle_agent_commands
  begin
    @agent_command_router.check_for_and_handle_agent_commands
  rescue ForceRestartException, ForceDisconnectException
    raise
  rescue UnrecoverableServerException => e
    NewRelic::Agent.logger.warn('get_agent_commands message was rejected by remote service, discarding. ' \
      'Error: ', e)
  rescue ServerConnectionException => e
    log_remote_unavailable(:get_agent_commands, e)
  rescue => e
    NewRelic::Agent.logger.info('Error during check_for_and_handle_agent_commands, will retry later: ', e)
  end
end

#harvest_and_send_analytic_event_data ⇒ Object 



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# File 'lib/new_relic/agent/agent_helpers/harvest.rb', line 81

def harvest_and_send_analytic_event_data
  harvest_and_send_from_container(transaction_event_aggregator, :analytic_event_data)
  harvest_and_send_from_container(synthetics_event_aggregator, :analytic_event_data)
end

#harvest_and_send_custom_event_data ⇒ Object 



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# File 'lib/new_relic/agent/agent_helpers/harvest.rb', line 86

def harvest_and_send_custom_event_data
  harvest_and_send_from_container(@custom_event_aggregator, :custom_event_data)
end

#harvest_and_send_data_types ⇒ Object 



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# File 'lib/new_relic/agent/agent_helpers/harvest.rb', line 102

def harvest_and_send_data_types
  harvest_and_send_errors
  harvest_and_send_error_event_data
  harvest_and_send_transaction_traces
  harvest_and_send_slowest_sql
  harvest_and_send_timeslice_data
  harvest_and_send_span_event_data
  harvest_and_send_log_event_data
end

#harvest_and_send_error_event_data ⇒ Object 



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# File 'lib/new_relic/agent/agent_helpers/harvest.rb', line 90

def harvest_and_send_error_event_data
  harvest_and_send_from_container(@error_collector.error_event_aggregator, :error_event_data)
end

#harvest_and_send_errors ⇒ Object 



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# File 'lib/new_relic/agent/agent_helpers/harvest.rb', line 77

def harvest_and_send_errors
  harvest_and_send_from_container(@error_collector.error_trace_aggregator, :error_data)
end

#harvest_and_send_for_agent_commands ⇒ Object 



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# File 'lib/new_relic/agent/agent_helpers/harvest.rb', line 73

def harvest_and_send_for_agent_commands
  harvest_and_send_from_container(@agent_command_router, :profile_data)
end

#harvest_and_send_from_container(container, endpoint) ⇒ Object

Harvests data from the given container, sends it to the named endpoint on the service, and automatically merges back in upon a recoverable failure.

The given container should respond to:

#harvest!
  returns a payload that contains enumerable collection of data items and
  optional metadata to be sent to the collector.

#reset!
  drop any stored data and reset to a clean state.

#merge!(payload)
  merge the given payload back into the internal buffer of the
  container, so that it may be harvested again later.



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# File 'lib/new_relic/agent/agent_helpers/harvest.rb', line 26

def harvest_and_send_from_container(container, endpoint)
  payload = harvest_from_container(container, endpoint)
  sample_count = harvest_size(container, payload)
  if sample_count > 0
    NewRelic::Agent.logger.debug("Sending #{sample_count} items to #{endpoint}")
    send_data_to_endpoint(endpoint, payload, container)
  end
end

#harvest_and_send_log_event_data ⇒ Object 



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# File 'lib/new_relic/agent/agent_helpers/harvest.rb', line 98

def harvest_and_send_log_event_data
  harvest_and_send_from_container(@log_event_aggregator, :log_event_data)
end

#harvest_and_send_slowest_sql ⇒ Object 



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# File 'lib/new_relic/agent/agent_helpers/harvest.rb', line 59

def harvest_and_send_slowest_sql
  harvest_and_send_from_container(@sql_sampler, :sql_trace_data)
end

#harvest_and_send_span_event_data ⇒ Object 



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# File 'lib/new_relic/agent/agent_helpers/harvest.rb', line 94

def harvest_and_send_span_event_data
  harvest_and_send_from_container(span_event_aggregator, :span_event_data)
end

#harvest_and_send_timeslice_data ⇒ Object 



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# File 'lib/new_relic/agent/agent_helpers/harvest.rb', line 54

def harvest_and_send_timeslice_data
  TransactionTimeAggregator.harvest!
  harvest_and_send_from_container(@stats_engine, :metric_data)
end

#harvest_and_send_transaction_traces ⇒ Object

This handles getting the transaction traces and then sending them across the wire. This includes gathering SQL explanations, stripping out stack traces, and normalizing SQL. note that we explain only the sql statements whose nodes’ execution times exceed our threshold (to avoid unnecessary overhead of running explains on fast queries.)



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# File 'lib/new_relic/agent/agent_helpers/harvest.rb', line 69

def harvest_and_send_transaction_traces
  harvest_and_send_from_container(@transaction_sampler, :transaction_sample_data)
end

#harvest_from_container(container, endpoint) ⇒ Object 



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# File 'lib/new_relic/agent/agent_helpers/harvest.rb', line 43

def harvest_from_container(container, endpoint)
  items = []
  begin
    items = container.harvest!
  rescue => e
    NewRelic::Agent.logger.error("Failed to harvest #{endpoint} data, resetting. Error: ", e)
    container.reset!
  end
  items
end

#harvest_size(container, items) ⇒ Object 



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# File 'lib/new_relic/agent/agent_helpers/harvest.rb', line 35

def harvest_size(container, items)
  if container.respond_to?(:has_metadata?) && container.has_metadata? && !items.empty?
    items.last.size
  else
    items.size
  end
end

#log_remote_unavailable(endpoint, e) ⇒ Object 



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# File 'lib/new_relic/agent/agent_helpers/harvest.rb', line 145

def log_remote_unavailable(endpoint, e)
  NewRelic::Agent.logger.debug("Unable to send #{endpoint} data, will try again later. Error: ", e)
  NewRelic::Agent.record_metric('Supportability/remote_unavailable', 0.0)
  NewRelic::Agent.record_metric("Supportability/remote_unavailable/#{endpoint.to_s}", 0.0)
end

#send_data_to_endpoint(endpoint, payload, container) ⇒ Object 



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# File 'lib/new_relic/agent/agent_helpers/harvest.rb', line 112

def send_data_to_endpoint(endpoint, payload, container)
  begin
    @service.send(endpoint, payload)
  rescue ForceRestartException, ForceDisconnectException
    raise
  rescue SerializationError => e
    NewRelic::Agent.logger.warn("Failed to serialize data for #{endpoint}, discarding. Error: ", e)
  rescue UnrecoverableServerException => e
    NewRelic::Agent.logger.warn("#{endpoint} data was rejected by remote service, discarding. Error: ", e)
  rescue ServerConnectionException => e
    log_remote_unavailable(endpoint, e)
    container.merge!(payload)
  rescue => e
    NewRelic::Agent.logger.info("Unable to send #{endpoint} data, will try again later. Error: ", e)
    container.merge!(payload)
  end
end