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Diffstat (limited to 'lib/gitlab/metrics/base_sampler.rb')
| -rw-r--r-- | lib/gitlab/metrics/base_sampler.rb | 63 |
1 files changed, 0 insertions, 63 deletions
diff --git a/lib/gitlab/metrics/base_sampler.rb b/lib/gitlab/metrics/base_sampler.rb deleted file mode 100644 index 716d20bb91a..00000000000 --- a/lib/gitlab/metrics/base_sampler.rb +++ /dev/null @@ -1,63 +0,0 @@ -require 'logger' -module Gitlab - module Metrics - class BaseSampler < Daemon - # interval - The sampling interval in seconds. - def initialize(interval) - interval_half = interval.to_f / 2 - - @interval = interval - @interval_steps = (-interval_half..interval_half).step(0.1).to_a - - super() - end - - def safe_sample - sample - rescue => e - Rails.logger.warn("#{self.class}: #{e}, stopping") - stop - end - - def sample - raise NotImplementedError - end - - # Returns the sleep interval with a random adjustment. - # - # The random adjustment is put in place to ensure we: - # - # 1. Don't generate samples at the exact same interval every time (thus - # potentially missing anything that happens in between samples). - # 2. Don't sample data at the same interval two times in a row. - def sleep_interval - while (step = @interval_steps.sample) - if step != @last_step - @last_step = step - - return @interval + @last_step - end - end - end - - private - - attr_reader :running - - def start_working - @running = true - sleep(sleep_interval) - - while running - safe_sample - - sleep(sleep_interval) - end - end - - def stop_working - @running = false - end - end - end -end |