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Diffstat (limited to 'config.ru')
-rw-r--r-- | config.ru | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/config.ru b/config.ru index ed76239ef2e..ebe719d4b0f 100644 --- a/config.ru +++ b/config.ru @@ -9,6 +9,12 @@ def master_process? end warmup do |app| + # The following is necessary to ensure stale Prometheus metrics don't accumulate over time. + # It needs to be done as early as here to ensure metrics files aren't deleted. + # After we hit our app in `warmup`, first metrics and corresponding files already being created, + # for example in `lib/gitlab/metrics/requests_rack_middleware.rb`. + Prometheus::CleanupMultiprocDirService.new.execute if master_process? + client = Rack::MockRequest.new(app) client.get('/') end |