Class: LogStash::Outputs::Http
- Inherits:
-
Base
- Object
- Base
- LogStash::Outputs::Http
- Includes:
- PluginMixins::HttpClient
- Defined in:
- lib/logstash/outputs/http.rb
Defined Under Namespace
Classes: RetryTimerTask
Constant Summary collapse
- VALID_METHODS =
["put", "post", "patch", "delete", "get", "head"]
- RETRYABLE_MANTICORE_EXCEPTIONS =
[ ::Manticore::Timeout, ::Manticore::SocketException, ::Manticore::ClientProtocolException, ::Manticore::ResolutionFailure, ::Manticore::SocketTimeout ]
Instance Method Summary collapse
- #close ⇒ Object
-
#multi_receive(events) ⇒ Object
def register.
- #register ⇒ Object
- #send_event(event, attempt) ⇒ Object
- #send_events(events) ⇒ Object
- #sleep_for_attempt(attempt) ⇒ Object
Instance Method Details
#close ⇒ Object
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# File 'lib/logstash/outputs/http.rb', line 275 def close @timer.cancel client.close end |
#multi_receive(events) ⇒ Object
def register
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# File 'lib/logstash/outputs/http.rb', line 115 def multi_receive(events) send_events(events) end |
#register ⇒ Object
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# File 'lib/logstash/outputs/http.rb', line 89 def register @http_method = @http_method.to_sym # We count outstanding requests with this queue # This queue tracks the requests to create backpressure # When this queue is empty no new requests may be sent, # tokens must be added back by the client on success @request_tokens = SizedQueue.new(@pool_max) @pool_max.times {|t| @request_tokens << true } @requests = Array.new if @content_type.nil? case @format when "form" ; @content_type = "application/x-www-form-urlencoded" when "json" ; @content_type = "application/json" when "message" ; @content_type = "text/plain" end end validate_format! # Run named Timer as daemon thread @timer = java.util.Timer.new("HTTP Output #{self.params['id']}", true) end |
#send_event(event, attempt) ⇒ Object
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# File 'lib/logstash/outputs/http.rb', line 196 def send_event(event, attempt) body = event_body(event) # Send the request url = event.sprintf(@url) headers = event_headers(event) # Compress the body and add appropriate header if @http_compression == true headers["Content-Encoding"] = "gzip" body = gzip(body) end # Create an async request request = client.background.send(@http_method, url, :body => body, :headers => headers) request.on_success do |response| begin if !response_success?(response) will_retry = retryable_response?(response) log_failure( "Encountered non-2xx HTTP code #{response.code}", :response_code => response.code, :url => url, :event => event, :will_retry => will_retry ) if will_retry yield :retry, event, attempt else yield :failure, event, attempt end else yield :success, event, attempt end rescue => e # Shouldn't ever happen @logger.error("Unexpected error in request success!", :class => e.class.name, :message => e., :backtrace => e.backtrace) end end request.on_failure do |exception| begin will_retry = retryable_exception?(exception) log_failure("Could not fetch URL", :url => url, :method => @http_method, :body => body, :headers => headers, :message => exception., :class => exception.class.name, :backtrace => exception.backtrace, :will_retry => will_retry ) if will_retry yield :retry, event, attempt else yield :failure, event, attempt end rescue => e # Shouldn't ever happen @logger.error("Unexpected error in request failure!", :class => e.class.name, :message => e., :backtrace => e.backtrace) end end # Actually invoke the request in the background # Note: this must only be invoked after all handlers are defined, otherwise # those handlers are not guaranteed to be called! request.call end |
#send_events(events) ⇒ Object
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# File 'lib/logstash/outputs/http.rb', line 132 def send_events(events) successes = java.util.concurrent.atomic.AtomicInteger.new(0) failures = java.util.concurrent.atomic.AtomicInteger.new(0) retries = java.util.concurrent.atomic.AtomicInteger.new(0) pending = Queue.new events.each {|e| pending << [e, 0]} while popped = pending.pop break if popped == :done event, attempt = popped send_event(event, attempt) do |action,event,attempt| begin action = :failure if action == :retry && !@retry_failed case action when :success successes.incrementAndGet when :retry retries.incrementAndGet next_attempt = attempt+1 sleep_for = sleep_for_attempt(next_attempt) @logger.info("Retrying http request, will sleep for #{sleep_for} seconds") timer_task = RetryTimerTask.new(pending, event, next_attempt) @timer.schedule(timer_task, sleep_for*1000) when :failure failures.incrementAndGet else raise "Unknown action #{action}" end if action == :success || action == :failure if successes.get+failures.get == events.size pending << :done end end rescue => e # This should never happen unless there's a flat out bug in the code @logger.error("Error sending HTTP Request", :class => e.class.name, :message => e., :backtrace => e.backtrace) failures.incrementAndGet raise e end end end rescue => e @logger.error("Error in http output loop", :class => e.class.name, :message => e., :backtrace => e.backtrace) raise e end |
#sleep_for_attempt(attempt) ⇒ Object
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# File 'lib/logstash/outputs/http.rb', line 190 def sleep_for_attempt(attempt) sleep_for = attempt**2 sleep_for = sleep_for <= 60 ? sleep_for : 60 (sleep_for/2) + (rand(0..sleep_for)/2) end |