diff options
Diffstat (limited to 'config/initializers/7_prometheus_metrics.rb')
-rw-r--r-- | config/initializers/7_prometheus_metrics.rb | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/config/initializers/7_prometheus_metrics.rb b/config/initializers/7_prometheus_metrics.rb index 146c4b1e024..8052880cc3d 100644 --- a/config/initializers/7_prometheus_metrics.rb +++ b/config/initializers/7_prometheus_metrics.rb @@ -26,9 +26,25 @@ Sidekiq.configure_server do |config| end if !Rails.env.test? && Gitlab::Metrics.prometheus_metrics_enabled? - unless Sidekiq.server? - Gitlab::Metrics::Samplers::UnicornSampler.initialize_instance(Settings.monitoring.unicorn_sampler_interval).start + Gitlab::Cluster::LifecycleEvents.on_worker_start do + defined?(::Prometheus::Client.reinitialize_on_pid_change) && Prometheus::Client.reinitialize_on_pid_change + + unless Sidekiq.server? + Gitlab::Metrics::Samplers::UnicornSampler.initialize_instance(Settings.monitoring.unicorn_sampler_interval).start + end + + Gitlab::Metrics::Samplers::RubySampler.initialize_instance(Settings.monitoring.ruby_sampler_interval).start end +end - Gitlab::Metrics::Samplers::RubySampler.initialize_instance(Settings.monitoring.ruby_sampler_interval).start +Gitlab::Cluster::LifecycleEvents.on_master_restart do + # The following is necessary to ensure stale Prometheus metrics don't + # accumulate over time. It needs to be done in this hook as opposed to + # inside an init script to ensure metrics files aren't deleted after new + # unicorn workers start after a SIGUSR2 is received. + prometheus_multiproc_dir = ENV['prometheus_multiproc_dir'] + if prometheus_multiproc_dir + old_metrics = Dir[File.join(prometheus_multiproc_dir, '*.db')] + FileUtils.rm_rf(old_metrics) + end end |