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# frozen_string_literal: true
module Gitlab
module Memory
class ReportsDaemon < Daemon
DEFAULT_SLEEP_S = 7200 # 2 hours
DEFAULT_SLEEP_MAX_DELTA_S = 600 # 0..10 minutes
DEFAULT_SLEEP_BETWEEN_REPORTS_S = 120 # 2 minutes
def initialize(reporter: nil, reports: nil, **options)
super
@alive = true
@sleep_s =
ENV['GITLAB_DIAGNOSTIC_REPORTS_SLEEP_S']&.to_i || DEFAULT_SLEEP_S
@sleep_max_delta_s =
ENV['GITLAB_DIAGNOSTIC_REPORTS_SLEEP_MAX_DELTA_S']&.to_i || DEFAULT_SLEEP_MAX_DELTA_S
@sleep_between_reports_s =
ENV['GITLAB_DIAGNOSTIC_REPORTS_SLEEP_BETWEEN_REPORTS_S']&.to_i || DEFAULT_SLEEP_BETWEEN_REPORTS_S
@reporter = reporter || Reporter.new
@reports = reports || [
Gitlab::Memory::Reports::JemallocStats.new
]
end
attr_reader :sleep_s, :sleep_max_delta_s, :sleep_between_reports_s
def run_thread
while alive
sleep interval_with_jitter
reports.select(&:active?).each do |report|
@reporter.run_report(report)
sleep sleep_between_reports_s
end
end
end
private
attr_reader :alive, :reports
# Returns the sleep interval with a random adjustment.
# The random adjustment is put in place to ensure continued availability.
def interval_with_jitter
sleep_s + rand(sleep_max_delta_s)
end
def stop_working
@alive = false
end
end
end
end
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