Class: Fluent::Plugin::PrometheusOutputMonitorInput
- Inherits:
-
Input
- Object
- Input
- Fluent::Plugin::PrometheusOutputMonitorInput
- Defined in:
- lib/fluent/plugin/in_prometheus_output_monitor.rb
Constant Summary collapse
- MONITOR_IVARS =
[ :retry, :num_errors, :emit_count, # for v0.12 :last_retry_time, # from v0.14 :emit_records, :write_count, :rollback_count, # from v1.6.0 :flush_time_count, :slow_flush_count, ]
Instance Attribute Summary collapse
-
#registry ⇒ Object
readonly
Returns the value of attribute registry.
Instance Method Summary collapse
- #configure(conf) ⇒ Object
-
#initialize ⇒ PrometheusOutputMonitorInput
constructor
A new instance of PrometheusOutputMonitorInput.
- #labels(plugin_info) ⇒ Object
- #multi_workers_ready? ⇒ Boolean
- #start ⇒ Object
- #update_monitor_info ⇒ Object
Constructor Details
#initialize ⇒ PrometheusOutputMonitorInput
Returns a new instance of PrometheusOutputMonitorInput.
33 34 35 36 |
# File 'lib/fluent/plugin/in_prometheus_output_monitor.rb', line 33 def initialize super @registry = ::Prometheus::Client.registry end |
Instance Attribute Details
#registry ⇒ Object (readonly)
Returns the value of attribute registry.
12 13 14 |
# File 'lib/fluent/plugin/in_prometheus_output_monitor.rb', line 12 def registry @registry end |
Instance Method Details
#configure(conf) ⇒ Object
42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 |
# File 'lib/fluent/plugin/in_prometheus_output_monitor.rb', line 42 def configure(conf) super hostname = Socket.gethostname = Fluent::Plugin::Prometheus.(log) placeholders = .prepare_placeholders({'hostname' => hostname, 'worker_id' => fluentd_worker_id}) @base_labels = Fluent::Plugin::Prometheus.parse_labels_elements(conf) @base_labels.each do |key, value| unless value.is_a?(String) raise Fluent::ConfigError, "record accessor syntax is not available in prometheus_output_monitor" end @base_labels[key] = .(value, placeholders) end if defined?(Fluent::Plugin) && defined?(Fluent::Plugin::MonitorAgentInput) # from v0.14.6 @monitor_agent = Fluent::Plugin::MonitorAgentInput.new else @monitor_agent = Fluent::MonitorAgentInput.new end end |
#labels(plugin_info) ⇒ Object
164 165 166 167 168 169 |
# File 'lib/fluent/plugin/in_prometheus_output_monitor.rb', line 164 def labels(plugin_info) @base_labels.merge( plugin_id: plugin_info["plugin_id"], type: plugin_info["type"], ) end |
#multi_workers_ready? ⇒ Boolean
38 39 40 |
# File 'lib/fluent/plugin/in_prometheus_output_monitor.rb', line 38 def multi_workers_ready? true end |
#start ⇒ Object
63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 |
# File 'lib/fluent/plugin/in_prometheus_output_monitor.rb', line 63 def start super @metrics = { buffer_queue_length: @registry.gauge( :fluentd_output_status_buffer_queue_length, 'Current buffer queue length.'), buffer_total_queued_size: @registry.gauge( :fluentd_output_status_buffer_total_bytes, 'Current total size of queued buffers.'), retry_counts: @registry.gauge( :fluentd_output_status_retry_count, 'Current retry counts.'), num_errors: @registry.gauge( :fluentd_output_status_num_errors, 'Current number of errors.'), emit_count: @registry.gauge( :fluentd_output_status_emit_count, 'Current emit counts.'), emit_records: @registry.gauge( :fluentd_output_status_emit_records, 'Current emit records.'), write_count: @registry.gauge( :fluentd_output_status_write_count, 'Current write counts.'), rollback_count: @registry.gauge( :fluentd_output_status_rollback_count, 'Current rollback counts.'), flush_time_count: @registry.gauge( :fluentd_output_status_flush_time_count, 'Total flush time.'), slow_flush_count: @registry.gauge( :fluentd_output_status_slow_flush_count, 'Current slow flush counts.'), retry_wait: @registry.gauge( :fluentd_output_status_retry_wait, 'Current retry wait'), } timer_execute(:in_prometheus_output_monitor, @interval, &method(:update_monitor_info)) end |
#update_monitor_info ⇒ Object
104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 |
# File 'lib/fluent/plugin/in_prometheus_output_monitor.rb', line 104 def update_monitor_info opts = { ivars: MONITOR_IVARS, with_retry: true, } agent_info = @monitor_agent.plugins_info_all(opts).select {|info| info['plugin_category'] == 'output'.freeze } monitor_info = { 'buffer_queue_length' => @metrics[:buffer_queue_length], 'buffer_total_queued_size' => @metrics[:buffer_total_queued_size], 'retry_count' => @metrics[:retry_counts], } instance_vars_info = { num_errors: @metrics[:num_errors], write_count: @metrics[:write_count], emit_count: @metrics[:emit_count], emit_records: @metrics[:emit_records], rollback_count: @metrics[:rollback_count], flush_time_count: @metrics[:flush_time_count], slow_flush_count: @metrics[:slow_flush_count], } agent_info.each do |info| label = labels(info) monitor_info.each do |name, metric| if info[name] metric.set(label, info[name]) end end if info['instance_variables'] instance_vars_info.each do |name, metric| if info['instance_variables'][name] metric.set(label, info['instance_variables'][name]) end end end # compute current retry_wait if info['retry'] next_time = info['retry']['next_time'] start_time = info['retry']['start'] if start_time.nil? && info['instance_variables'] # v0.12 does not include start, use last_retry_time instead start_time = info['instance_variables'][:last_retry_time] end wait = 0 if next_time && start_time wait = next_time - start_time end @metrics[:retry_wait].set(label, wait.to_f) end end end |