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