debian-mirror-gitlab/lib/gitlab/metrics/samplers/influx_sampler.rb
2020-03-13 15:44:24 +05:30

49 lines
1.3 KiB
Ruby

# frozen_string_literal: true
module Gitlab
module Metrics
module Samplers
# Class that sends certain metrics to InfluxDB at a specific interval.
#
# This class is used to gather statistics that can't be directly associated
# with a transaction such as system memory usage, garbage collection
# statistics, etc.
class InfluxSampler < BaseSampler
# interval - The sampling interval in seconds.
def initialize(interval = ::Gitlab::Metrics.settings[:sample_interval])
super(interval)
@last_step = nil
@metrics = []
end
def sample
sample_memory_usage
sample_file_descriptors
flush
ensure
@metrics.clear
end
def flush
::Gitlab::Metrics.submit_metrics(@metrics.map(&:to_hash))
end
def sample_memory_usage
add_metric('memory_usage', value: System.memory_usage)
end
def sample_file_descriptors
add_metric('file_descriptors', value: System.file_descriptor_count)
end
def add_metric(series, values, tags = {})
prefix = Gitlab::Runtime.sidekiq? ? 'sidekiq_' : 'rails_'
@metrics << Metric.new("#{prefix}#{series}", values, tags)
end
end
end
end
end