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Contents
#
# Fluentd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
require 'yajl'
require 'fluent/plugin/input'
module Fluent::Plugin
class ObjectSpaceInput < Fluent::Plugin::Input
Fluent::Plugin.register_input('object_space', self)
helpers :timer
def initialize
super
end
config_param :emit_interval, :time, default: 60
config_param :tag, :string
config_param :top, :integer, default: 15
def multi_workers_ready?
true
end
def start
super
timer_execute(:object_space_input, @emit_interval, &method(:on_timer))
end
class Counter
def initialize(klass, init_count)
@klass = klass
@count = init_count
end
def incr!
@count += 1
end
def name
@klass.name
end
attr_reader :count
end
def on_timer
now = Fluent::EventTime.now
array = []
map = {}
ObjectSpace.each_object {|obj|
klass = obj.class rescue Object
if c = map[klass]
c.incr!
else
c = Counter.new(klass, 1)
array << c
map[klass] = c
end
}
array.sort_by! {|c| -c.count }
record = {}
array.each_with_index {|c,i|
break if i >= @top
record[c.name] = c.count
}
router.emit(@tag, now, record)
rescue => e
log.error "object space failed to emit", error: e, tag: @tag, record: Yajl.dump(record)
log.error_backtrace
end
end
end
Version data entries
271 entries across 271 versions & 8 rubygems