Class: LogStash::JavaPipeline
- Inherits:
-
JavaBasePipeline
- Object
- JavaBasePipeline
- LogStash::JavaPipeline
- Defined in:
- lib/logstash/java_pipeline.rb
Constant Summary collapse
- MAX_INFLIGHT_WARN_THRESHOLD =
10_000
Instance Attribute Summary collapse
-
#events_consumed ⇒ Object
readonly
Returns the value of attribute events_consumed.
-
#events_filtered ⇒ Object
readonly
Returns the value of attribute events_filtered.
-
#filter_queue_client ⇒ Object
readonly
Returns the value of attribute filter_queue_client.
-
#input_queue_client ⇒ Object
readonly
Returns the value of attribute input_queue_client.
-
#metric ⇒ Object
readonly
Returns the value of attribute metric.
-
#queue ⇒ Object
readonly
Returns the value of attribute queue.
-
#reporter ⇒ Object
readonly
Returns the value of attribute reporter.
-
#settings ⇒ Object
readonly
Returns the value of attribute settings.
-
#started_at ⇒ Object
readonly
Returns the value of attribute started_at.
-
#thread ⇒ Object
readonly
Returns the value of attribute thread.
-
#worker_threads ⇒ Object
readonly
Returns the value of attribute worker_threads.
Attributes inherited from JavaBasePipeline
#config_hash, #config_str, #ephemeral_id, #filters, #inputs, #lir, #outputs, #pipeline_config, #pipeline_id
Instance Method Summary collapse
- #clear_pipeline_metrics ⇒ Object
-
#close ⇒ Object
def run.
- #collect_dlq_stats ⇒ Object
- #collect_stats ⇒ Object
- #dlq_enabled? ⇒ Boolean
-
#filter(event, &block) ⇒ Object
for backward compatibility in devutils for the rspec helpers, this method is not used anymore and just here to not break TestPipeline that inherits this class.
- #filters? ⇒ Boolean
-
#flush_filters(options = {}, &block) ⇒ Object
for backward compatibility in devutils for the rspec helpers, this method is not used anymore and just here to not break TestPipeline that inherits this class.
-
#initialize(pipeline_config, namespaced_metric = nil, agent = nil) ⇒ JavaPipeline
constructor
A new instance of JavaPipeline.
- #inputworker(plugin) ⇒ Object
-
#inspect ⇒ Object
Sometimes we log stuff that will dump the pipeline which may contain sensitive information (like the raw syntax tree which can contain passwords) We want to hide most of what’s in here.
- #plugin_threads_info ⇒ Object
-
#ready? ⇒ Boolean
def initialize.
-
#register_plugins(plugins) ⇒ Object
register_plugins calls #register_plugin on the plugins list and upon exception will call Plugin#do_close on all registered plugins.
- #run ⇒ Object
- #running? ⇒ Boolean
- #safe_pipeline_worker_count ⇒ Object
-
#shutdown(&before_stop) ⇒ Object
initiate the pipeline shutdown sequence this method is intended to be called from outside the pipeline thread.
- #shutdown_flusher ⇒ Object
-
#shutdown_workers ⇒ Object
After ‘shutdown` is called from an external thread this is called from the main thread to tell the worker threads to stop and then block until they’ve fully stopped This also stops all filter and output plugins.
- #stalling_threads_info ⇒ Object
- #start ⇒ Object
- #start_flusher ⇒ Object
- #start_input(plugin) ⇒ Object
- #start_inputs ⇒ Object
- #start_workers ⇒ Object
- #stop_inputs ⇒ Object
- #stopped? ⇒ Boolean
- #system? ⇒ Boolean
- #transition_to_running ⇒ Object
- #transition_to_stopped ⇒ Object
-
#uptime ⇒ Fixnum
Calculate the uptime in milliseconds.
-
#wait_for_workers ⇒ Object
def shutdown.
- #wait_inputs ⇒ Object
- #wait_until_started ⇒ Object
Methods inherited from JavaBasePipeline
#buildCodec, #buildFilter, #buildInput, #buildOutput, #close_dlq_writer, #configured_as_reloadable?, #dlq_writer, #non_reloadable_plugins, #plugin, #reloadable?, #reloadable_plugins?
Methods included from Util::Loggable
included, #logger, #slow_logger
Constructor Details
#initialize(pipeline_config, namespaced_metric = nil, agent = nil) ⇒ JavaPipeline
Returns a new instance of JavaPipeline.
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# File 'lib/logstash/java_pipeline.rb', line 139 def initialize(pipeline_config, namespaced_metric = nil, agent = nil) @settings = pipeline_config.settings # This needs to be configured before we call super which will evaluate the code to make # sure the metric instance is correctly send to the plugins to make the namespace scoping work @metric = if namespaced_metric settings.get("metric.collect") ? namespaced_metric : Instrument::NullMetric.new(namespaced_metric.collector) else Instrument::NullMetric.new end @ephemeral_id = SecureRandom.uuid @settings = settings @reporter = PipelineReporter.new(@logger, self) @worker_threads = [] super begin @queue = LogStash::QueueFactory.create(settings) rescue => e @logger.error("Logstash failed to create queue", default_logging_keys("exception" => e., "backtrace" => e.backtrace)) raise e end @input_queue_client = @queue.write_client @filter_queue_client = @queue.read_client # Note that @inflight_batches as a central mechanism for tracking inflight # batches will fail if we have multiple read clients here. @filter_queue_client.set_events_metric(metric.namespace([:stats, :events])) @filter_queue_client.set_pipeline_metric( metric.namespace([:stats, :pipelines, pipeline_id.to_s.to_sym, :events]) ) @drain_queue = @settings.get_value("queue.drain") || settings.get("queue.type") == "memory" @events_filtered = java.util.concurrent.atomic.LongAdder.new @events_consumed = java.util.concurrent.atomic.LongAdder.new @input_threads = [] # @ready requires thread safety since it is typically polled from outside the pipeline thread @ready = Concurrent::AtomicBoolean.new(false) @running = Concurrent::AtomicBoolean.new(false) @flushing = java.util.concurrent.atomic.AtomicBoolean.new(false) @flushRequested = java.util.concurrent.atomic.AtomicBoolean.new(false) @shutdownRequested = java.util.concurrent.atomic.AtomicBoolean.new(false) @outputs_registered = Concurrent::AtomicBoolean.new(false) @finished_execution = Concurrent::AtomicBoolean.new(false) end |
Instance Attribute Details
#events_consumed ⇒ Object (readonly)
Returns the value of attribute events_consumed.
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# File 'lib/logstash/java_pipeline.rb', line 124 def events_consumed @events_consumed end |
#events_filtered ⇒ Object (readonly)
Returns the value of attribute events_filtered.
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# File 'lib/logstash/java_pipeline.rb', line 124 def events_filtered @events_filtered end |
#filter_queue_client ⇒ Object (readonly)
Returns the value of attribute filter_queue_client.
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# File 'lib/logstash/java_pipeline.rb', line 124 def filter_queue_client @filter_queue_client end |
#input_queue_client ⇒ Object (readonly)
Returns the value of attribute input_queue_client.
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# File 'lib/logstash/java_pipeline.rb', line 124 def input_queue_client @input_queue_client end |
#metric ⇒ Object (readonly)
Returns the value of attribute metric.
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# File 'lib/logstash/java_pipeline.rb', line 124 def metric @metric end |
#queue ⇒ Object (readonly)
Returns the value of attribute queue.
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# File 'lib/logstash/java_pipeline.rb', line 124 def queue @queue end |
#reporter ⇒ Object (readonly)
Returns the value of attribute reporter.
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# File 'lib/logstash/java_pipeline.rb', line 124 def reporter @reporter end |
#settings ⇒ Object (readonly)
Returns the value of attribute settings.
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# File 'lib/logstash/java_pipeline.rb', line 124 def settings @settings end |
#started_at ⇒ Object (readonly)
Returns the value of attribute started_at.
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# File 'lib/logstash/java_pipeline.rb', line 124 def started_at @started_at end |
#thread ⇒ Object (readonly)
Returns the value of attribute thread.
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# File 'lib/logstash/java_pipeline.rb', line 124 def thread @thread end |
#worker_threads ⇒ Object (readonly)
Returns the value of attribute worker_threads.
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# File 'lib/logstash/java_pipeline.rb', line 124 def worker_threads @worker_threads end |
Instance Method Details
#clear_pipeline_metrics ⇒ Object
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# File 'lib/logstash/java_pipeline.rb', line 576 def clear_pipeline_metrics # TODO(ph): I think the metric should also proxy that call correctly to the collector # this will simplify everything since the null metric would simply just do a noop collector = @metric.collector unless collector.nil? # selectively reset metrics we don't wish to keep after reloading # these include metrics about the plugins and number of processed events # we want to keep other metrics like reload counts and error messages collector.clear("stats/pipelines/#{pipeline_id}/plugins") collector.clear("stats/pipelines/#{pipeline_id}/events") end end |
#close ⇒ Object
def run
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# File 'lib/logstash/java_pipeline.rb', line 297 def close @filter_queue_client.close @queue.close close_dlq_writer end |
#collect_dlq_stats ⇒ Object
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# File 'lib/logstash/java_pipeline.rb', line 545 def collect_dlq_stats if dlq_enabled? dlq_metric = @metric.namespace([:stats, :pipelines, pipeline_id.to_s.to_sym, :dlq]) dlq_metric.gauge(:queue_size_in_bytes, @dlq_writer.get_current_queue_size) end end |
#collect_stats ⇒ Object
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# File 'lib/logstash/java_pipeline.rb', line 552 def collect_stats pipeline_metric = @metric.namespace([:stats, :pipelines, pipeline_id.to_s.to_sym, :queue]) pipeline_metric.gauge(:type, settings.get("queue.type")) if @queue.is_a?(LogStash::WrappedAckedQueue) && @queue.queue.is_a?(LogStash::AckedQueue) queue = @queue.queue dir_path = queue.dir_path file_store = Files.get_file_store(Paths.get(dir_path)) pipeline_metric.namespace([:capacity]).tap do |n| n.gauge(:page_capacity_in_bytes, queue.page_capacity) n.gauge(:max_queue_size_in_bytes, queue.max_size_in_bytes) n.gauge(:max_unread_events, queue.max_unread_events) n.gauge(:queue_size_in_bytes, queue.persisted_size_in_bytes) end pipeline_metric.namespace([:data]).tap do |n| n.gauge(:free_space_in_bytes, file_store.get_unallocated_space) n.gauge(:storage_type, file_store.type) n.gauge(:path, dir_path) end pipeline_metric.gauge(:events, queue.unread_count) end end |
#dlq_enabled? ⇒ Boolean
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# File 'lib/logstash/java_pipeline.rb', line 395 def dlq_enabled? @settings.get("dead_letter_queue.enable") end |
#filter(event, &block) ⇒ Object
for backward compatibility in devutils for the rspec helpers, this method is not used anymore and just here to not break TestPipeline that inherits this class.
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# File 'lib/logstash/java_pipeline.rb', line 504 def filter(event, &block) end |
#filters? ⇒ Boolean
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# File 'lib/logstash/java_pipeline.rb', line 215 def filters? @filters.any? end |
#flush_filters(options = {}, &block) ⇒ Object
for backward compatibility in devutils for the rspec helpers, this method is not used anymore and just here to not break TestPipeline that inherits this class.
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# File 'lib/logstash/java_pipeline.rb', line 509 def flush_filters( = {}, &block) end |
#inputworker(plugin) ⇒ Object
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# File 'lib/logstash/java_pipeline.rb', line 425 def inputworker(plugin) Util::set_thread_name("[#{pipeline_id}]<#{plugin.class.config_name}") begin plugin.run(LogStash::WrappedWriteClient.new(@input_queue_client, @pipeline_id.to_s.to_sym, metric, plugin.id.to_sym)) rescue => e if plugin.stop? @logger.debug("Input plugin raised exception during shutdown, ignoring it.", default_logging_keys(:plugin => plugin.class.config_name, :exception => e., :backtrace => e.backtrace)) return end # otherwise, report error and restart @logger.error(I18n.t("logstash.pipeline.worker-error-debug", default_logging_keys( :plugin => plugin.inspect, :error => e., :exception => e.class, :stacktrace => e.backtrace.join("\n")))) # Assuming the failure that caused this exception is transient, # let's sleep for a bit and execute #run again sleep(1) retry ensure plugin.do_close end end |
#inspect ⇒ Object
Sometimes we log stuff that will dump the pipeline which may contain sensitive information (like the raw syntax tree which can contain passwords) We want to hide most of what’s in here
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# File 'lib/logstash/java_pipeline.rb', line 593 def inspect { :pipeline_id => @pipeline_id, :settings => @settings.inspect, :ready => @ready, :running => @running, :flushing => @flushing } end |
#plugin_threads_info ⇒ Object
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# File 'lib/logstash/java_pipeline.rb', line 531 def plugin_threads_info input_threads = @input_threads.select {|t| t.alive? } worker_threads = @worker_threads.select {|t| t.alive? } (input_threads + worker_threads).map {|t| Util.thread_info(t) } end |
#ready? ⇒ Boolean
def initialize
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# File 'lib/logstash/java_pipeline.rb', line 187 def ready? @ready.value end |
#register_plugins(plugins) ⇒ Object
register_plugins calls #register_plugin on the plugins list and upon exception will call Plugin#do_close on all registered plugins
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# File 'lib/logstash/java_pipeline.rb', line 325 def register_plugins(plugins) registered = [] plugins.each do |plugin| plugin.register registered << plugin end rescue => e registered.each(&:do_close) raise e end |
#run ⇒ Object
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# File 'lib/logstash/java_pipeline.rb', line 267 def run @started_at = Time.now @thread = Thread.current Util.set_thread_name("[#{pipeline_id}]-pipeline-manager") start_workers @logger.info("Pipeline started", "pipeline.id" => @pipeline_id) # Block until all inputs have stopped # Generally this happens if SIGINT is sent and `shutdown` is called from an external thread transition_to_running start_flusher # Launches a non-blocking thread for flush events wait_inputs transition_to_stopped @logger.debug("Input plugins stopped! Will shutdown filter/output workers.", default_logging_keys) shutdown_flusher shutdown_workers close @logger.debug("Pipeline has been shutdown", default_logging_keys) # exit code return 0 end |
#running? ⇒ Boolean
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# File 'lib/logstash/java_pipeline.rb', line 311 def running? @running.true? end |
#safe_pipeline_worker_count ⇒ Object
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# File 'lib/logstash/java_pipeline.rb', line 191 def safe_pipeline_worker_count default = @settings.get_default("pipeline.workers") pipeline_workers = @settings.get("pipeline.workers") #override from args "-w 8" or config safe_filters, unsafe_filters = @filters.partition(&:threadsafe?) plugins = unsafe_filters.collect { |f| f.config_name } return pipeline_workers if unsafe_filters.empty? if @settings.set?("pipeline.workers") if pipeline_workers > 1 @logger.warn("Warning: Manual override - there are filters that might not work with multiple worker threads", default_logging_keys(:worker_threads => pipeline_workers, :filters => plugins)) end else # user did not specify a worker thread count # warn if the default is multiple if default > 1 @logger.warn("Defaulting pipeline worker threads to 1 because there are some filters that might not work with multiple worker threads", default_logging_keys(:count_was => default, :filters => plugins)) return 1 # can't allow the default value to propagate if there are unsafe filters end end pipeline_workers end |
#shutdown(&before_stop) ⇒ Object
initiate the pipeline shutdown sequence this method is intended to be called from outside the pipeline thread
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# File 'lib/logstash/java_pipeline.rb', line 456 def shutdown(&before_stop) # shutdown can only start once the pipeline has completed its startup. # avoid potential race condition between the startup sequence and this # shutdown method which can be called from another thread at any time sleep(0.1) while !ready? # TODO: should we also check against calling shutdown multiple times concurrently? before_stop.call if block_given? stop_inputs # We make this call blocking, so we know for sure when the method return the shtudown is # stopped wait_for_workers clear_pipeline_metrics @logger.info("Pipeline terminated", "pipeline.id" => @pipeline_id) end |
#shutdown_flusher ⇒ Object
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# File 'lib/logstash/java_pipeline.rb', line 519 def shutdown_flusher @flusher_thread.close end |
#shutdown_workers ⇒ Object
After ‘shutdown` is called from an external thread this is called from the main thread to tell the worker threads to stop and then block until they’ve fully stopped This also stops all filter and output plugins
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# File 'lib/logstash/java_pipeline.rb', line 490 def shutdown_workers @shutdownRequested.set(true) @worker_threads.each do |t| @logger.debug("Shutdown waiting for worker thread" , default_logging_keys(:thread => t.inspect)) t.join end @filters.each(&:do_close) @outputs.each(&:do_close) end |
#stalling_threads_info ⇒ Object
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# File 'lib/logstash/java_pipeline.rb', line 537 def stalling_threads_info plugin_threads_info .reject {|t| t["blocked_on"] } # known benign blocking statuses .each {|t| t.delete("backtrace") } .each {|t| t.delete("blocked_on") } .each {|t| t.delete("status") } end |
#start ⇒ Object
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# File 'lib/logstash/java_pipeline.rb', line 219 def start # Since we start lets assume that the metric namespace is cleared # this is useful in the context of pipeline reloading collect_stats collect_dlq_stats @logger.debug("Starting pipeline", default_logging_keys) @finished_execution.make_false @thread = Thread.new do begin LogStash::Util.set_thread_name("pipeline.#{pipeline_id}") run @finished_execution.make_true rescue => e close logger.error("Pipeline aborted due to error", default_logging_keys(:exception => e, :backtrace => e.backtrace)) end end status = wait_until_started if status logger.debug("Pipeline started successfully", default_logging_keys(:pipeline_id => pipeline_id)) end status end |
#start_flusher ⇒ Object
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# File 'lib/logstash/java_pipeline.rb', line 512 def start_flusher # Invariant to help detect improper initialization raise "Attempted to start flusher on a stopped pipeline!" if stopped? @flusher_thread = org.logstash.execution.PeriodicFlush.new(@flushRequested, @flushing) @flusher_thread.start end |
#start_input(plugin) ⇒ Object
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# File 'lib/logstash/java_pipeline.rb', line 421 def start_input(plugin) @input_threads << Thread.new { inputworker(plugin) } end |
#start_inputs ⇒ Object
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# File 'lib/logstash/java_pipeline.rb', line 403 def start_inputs moreinputs = [] @inputs.each do |input| if input.threadable && input.threads > 1 (input.threads - 1).times do |i| moreinputs << input.clone end end end @inputs += moreinputs # first make sure we can register all input plugins register_plugins(@inputs) # then after all input plugins are successfully registered, start them @inputs.each { |input| start_input(input) } end |
#start_workers ⇒ Object
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# File 'lib/logstash/java_pipeline.rb', line 336 def start_workers @worker_threads.clear # In case we're restarting the pipeline @outputs_registered.make_false begin maybe_setup_out_plugins pipeline_workers = safe_pipeline_worker_count batch_size = @settings.get("pipeline.batch.size") batch_delay = @settings.get("pipeline.batch.delay") max_inflight = batch_size * pipeline_workers config_metric = metric.namespace([:stats, :pipelines, pipeline_id.to_s.to_sym, :config]) config_metric.gauge(:workers, pipeline_workers) config_metric.gauge(:batch_size, batch_size) config_metric.gauge(:batch_delay, batch_delay) config_metric.gauge(:config_reload_automatic, @settings.get("config.reload.automatic")) config_metric.gauge(:config_reload_interval, @settings.get("config.reload.interval")) config_metric.gauge(:dead_letter_queue_enabled, dlq_enabled?) config_metric.gauge(:dead_letter_queue_path, @dlq_writer.get_path.to_absolute_path.to_s) if dlq_enabled? @logger.info("Starting pipeline", default_logging_keys( "pipeline.workers" => pipeline_workers, "pipeline.batch.size" => batch_size, "pipeline.batch.delay" => batch_delay, "pipeline.max_inflight" => max_inflight)) if max_inflight > MAX_INFLIGHT_WARN_THRESHOLD @logger.warn("CAUTION: Recommended inflight events max exceeded! Logstash will run with up to #{max_inflight} events in memory in your current configuration. If your message sizes are large this may cause instability with the default heap size. Please consider setting a non-standard heap size, changing the batch size (currently #{batch_size}), or changing the number of pipeline workers (currently #{pipeline_workers})", default_logging_keys) end @filter_queue_client.set_batch_dimensions(batch_size, batch_delay) pipeline_workers.times do |t| thread = Thread.new do org.logstash.execution.WorkerLoop.new( @lir_execution, @filter_queue_client, @events_filtered, @events_consumed, @flushRequested, @flushing, @shutdownRequested, @drain_queue).run end thread.name="[#{pipeline_id}]>worker#{t}" @worker_threads << thread end # inputs should be started last, after all workers begin start_inputs rescue => e # if there is any exception in starting inputs, make sure we shutdown workers. # exception will already by logged in start_inputs shutdown_workers raise e end ensure # it is important to guarantee @ready to be true after the startup sequence has been completed # to potentially unblock the shutdown method which may be waiting on @ready to proceed @ready.make_true end end |
#stop_inputs ⇒ Object
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# File 'lib/logstash/java_pipeline.rb', line 481 def stop_inputs @logger.debug("Closing inputs", default_logging_keys) @inputs.each(&:do_stop) @logger.debug("Closed inputs", default_logging_keys) end |
#stopped? ⇒ Boolean
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# File 'lib/logstash/java_pipeline.rb', line 315 def stopped? @running.false? end |
#system? ⇒ Boolean
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# File 'lib/logstash/java_pipeline.rb', line 319 def system? settings.get_value("pipeline.system") end |
#transition_to_running ⇒ Object
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# File 'lib/logstash/java_pipeline.rb', line 303 def transition_to_running @running.make_true end |
#transition_to_stopped ⇒ Object
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# File 'lib/logstash/java_pipeline.rb', line 307 def transition_to_stopped @running.make_false end |
#uptime ⇒ Fixnum
Calculate the uptime in milliseconds
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# File 'lib/logstash/java_pipeline.rb', line 526 def uptime return 0 if started_at.nil? ((Time.now.to_f - started_at.to_f) * 1000.0).to_i end |
#wait_for_workers ⇒ Object
def shutdown
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# File 'lib/logstash/java_pipeline.rb', line 475 def wait_for_workers @logger.debug("Closing inputs", default_logging_keys) @worker_threads.map(&:join) @logger.debug("Worker closed", default_logging_keys) end |
#wait_inputs ⇒ Object
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# File 'lib/logstash/java_pipeline.rb', line 399 def wait_inputs @input_threads.each(&:join) end |
#wait_until_started ⇒ Object
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# File 'lib/logstash/java_pipeline.rb', line 249 def wait_until_started while true do # This should be changed with an appropriate FSM # It's an edge case, if we have a pipeline with # a generator { count => 1 } its possible that `Thread#alive?` doesn't return true # because the execution of the thread was successful and complete if @finished_execution.true? return true elsif thread.nil? || !thread.alive? return false elsif running? return true else sleep 0.01 end end end |