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# frozen_string_literal: true
module Sentry
class BackpressureMonitor < ThreadedPeriodicWorker
DEFAULT_INTERVAL = 10
MAX_DOWNSAMPLE_FACTOR = 10
def initialize(configuration, client, interval: DEFAULT_INTERVAL)
super(configuration.logger, interval)
@client = client
@healthy = true
@downsample_factor = 0
end
def healthy?
ensure_thread
@healthy
end
def downsample_factor
ensure_thread
@downsample_factor
end
def run
check_health
set_downsample_factor
end
def check_health
@healthy = !(@client.transport.any_rate_limited? || Sentry.background_worker&.full?)
end
def set_downsample_factor
if @healthy
log_debug("[BackpressureMonitor] health check positive, reverting to normal sampling") if @downsample_factor.positive?
@downsample_factor = 0
else
@downsample_factor += 1 if @downsample_factor < MAX_DOWNSAMPLE_FACTOR
log_debug("[BackpressureMonitor] health check negative, downsampling with a factor of #{@downsample_factor}")
end
end
end
end
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