1 files changed, 40 insertions, 0 deletions
diff --git a/app/models/namespace/aggregation_schedule.rb b/app/models/namespace/aggregation_schedule.rb
index 43afd0b954c..355593597c6 100644
--- a/app/models/namespace/aggregation_schedule.rb
+++ b/app/models/namespace/aggregation_schedule.rb
@@ -1,7 +1,47 @@
 # frozen_string_literal: true
 
 class Namespace::AggregationSchedule < ApplicationRecord
+  include AfterCommitQueue
+  include ExclusiveLeaseGuard
+
   self.primary_key = :namespace_id
 
+  DEFAULT_LEASE_TIMEOUT = 3.hours
+  REDIS_SHARED_KEY = 'gitlab:update_namespace_statistics_delay'.freeze
+
   belongs_to :namespace
+
+  after_create :schedule_root_storage_statistics
+
+  def self.delay_timeout
+    redis_timeout = Gitlab::Redis::SharedState.with do |redis|
+      redis.get(REDIS_SHARED_KEY)
+    end
+
+    redis_timeout.nil? ? DEFAULT_LEASE_TIMEOUT : redis_timeout.to_i
+  end
+
+  def schedule_root_storage_statistics
+    run_after_commit_or_now do
+      try_obtain_lease do
+        Namespaces::RootStatisticsWorker
+          .perform_async(namespace_id)
+
+        Namespaces::RootStatisticsWorker
+          .perform_in(self.class.delay_timeout, namespace_id)
+      end
+    end
+  end
+
+  private
+
+  # Used by ExclusiveLeaseGuard
+  def lease_timeout
+    self.class.delay_timeout
+  end
+
+  # Used by ExclusiveLeaseGuard
+  def lease_key
+    "namespace:namespaces_root_statistics:#{namespace_id}"
+  end
 end