Class: Fluent::NotifierOutput
- Inherits:
-
Output
- Object
- Output
- Fluent::NotifierOutput
- Defined in:
- lib/fluent/plugin/out_notifier.rb
Defined Under Namespace
Classes: Definition, State, Test
Constant Summary collapse
- NOTIFICATION_LEVELS =
['OK', 'WARN', 'CRIT', 'LOST'].freeze
- STATES_CLEAN_INTERVAL =
1hours
3600
- STATES_EXPIRE_SECONDS =
4hours
14400
Instance Attribute Summary collapse
-
#defs ⇒ Object
Returns the value of attribute defs.
-
#match_cache ⇒ Object
Returns the value of attribute match_cache.
-
#negative_cache ⇒ Object
Returns the value of attribute negative_cache.
-
#states ⇒ Object
Returns the value of attribute states.
-
#tests ⇒ Object
Returns the value of attribute tests.
Instance Method Summary collapse
- #check(tag, es) ⇒ Object
- #configure(conf) ⇒ Object
- #emit(tag, es, chain) ⇒ Object
- #start ⇒ Object
- #states_cleanup ⇒ Object
-
#suppressed_emit(notifications) ⇒ Object
def shutdown end.
Instance Attribute Details
#defs ⇒ Object
Returns the value of attribute defs.
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# File 'lib/fluent/plugin/out_notifier.rb', line 21 def defs @defs end |
#match_cache ⇒ Object
Returns the value of attribute match_cache.
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# File 'lib/fluent/plugin/out_notifier.rb', line 21 def match_cache @match_cache end |
#negative_cache ⇒ Object
Returns the value of attribute negative_cache.
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# File 'lib/fluent/plugin/out_notifier.rb', line 21 def negative_cache @negative_cache end |
#states ⇒ Object
Returns the value of attribute states.
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# File 'lib/fluent/plugin/out_notifier.rb', line 21 def states @states end |
#tests ⇒ Object
Returns the value of attribute tests.
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# File 'lib/fluent/plugin/out_notifier.rb', line 21 def tests @tests end |
Instance Method Details
#check(tag, es) ⇒ Object
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# File 'lib/fluent/plugin/out_notifier.rb', line 152 def check(tag, es) notifications = [] tag = if @input_tag_remove_prefix and tag.start_with?(@input_tag_remove_prefix_string) and tag.length > @input_tag_remove_prefix_length tag[@input_tag_remove_prefix_length..-1] else tag end es.each do |time,record| record.keys.each do |key| next if @negative_cache[key] defs = @match_cache[key] unless defs defs = [] @defs.each do |d| defs.push(d) if d.match?(key) end @negative_cache[key] = true if defs.size < 1 end defs.each do |d| next unless @tests.reduce(true){|r,t| r and t.test(tag, record)} alert = d.check(tag, time, record, key) if alert notifications.push(alert) end end end end notifications end |
#configure(conf) ⇒ Object
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# File 'lib/fluent/plugin/out_notifier.rb', line 82 def configure(conf) super @match_cache = {} # cache which has map (fieldname => definition(s)) @negative_cache = {} @tests = [] @defs = [] @states = {} # key: tag+field ? if @input_tag_remove_prefix @input_tag_remove_prefix_string = @input_tag_remove_prefix + '.' @input_tag_remove_prefix_length = @input_tag_remove_prefix_string.length end defaults = { :tag => @default_tag, :tag_warn => @default_tag_warn, :tag_crit => @default_tag_crit, :interval_1st => @default_interval_1st, :repetitions_1st => @default_repetitions_1st, :interval_2nd => @default_interval_2nd, :repetitions_2nd => @default_repetitions_2nd, :interval_3rd => @default_interval_3rd, } conf.elements.each do |element| case element.name when 'test' @tests.push(Test.new(element)) when 'def' @defs.push(Definition.new(element, defaults)) else raise Fluent::ConfigError, "invalid section name for out_notifier: #{element.name}" end end end |
#emit(tag, es, chain) ⇒ Object
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# File 'lib/fluent/plugin/out_notifier.rb', line 189 def emit(tag, es, chain) notifications = check(tag, es) if notifications.size > 0 @mutex.synchronize do suppressed_emit(notifications) end end if Fluent::Engine.now - @last_status_cleaned > STATES_CLEAN_INTERVAL @mutex.synchronize do states_cleanup @last_status_cleaned = Fluent::Engine.now end end chain.next end |
#start ⇒ Object
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# File 'lib/fluent/plugin/out_notifier.rb', line 115 def start super @mutex = Mutex.new @last_status_cleaned = Fluent::Engine.now end |
#states_cleanup ⇒ Object
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# File 'lib/fluent/plugin/out_notifier.rb', line 143 def states_cleanup now = Fluent::Engine.now @states.keys.each do |key| if now - @states[key].last_notified > STATES_EXPIRE_SECONDS @states.delete(key) end end end |
#suppressed_emit(notifications) ⇒ Object
def shutdown end
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# File 'lib/fluent/plugin/out_notifier.rb', line 124 def suppressed_emit(notifications) notifications.each do |n| hashkey = n.delete(:hashkey) definition = n.delete(:match_def) tag = n.delete(:emit_tag) state = @states[hashkey] if state unless state.suppress?(definition, n) Fluent::Engine.emit(tag, Fluent::Engine.now, n) state.update_notified(definition, n) end else Fluent::Engine.emit(tag, Fluent::Engine.now, n) @states[hashkey] = State.new(n) end end end |