1 files changed, 11 insertions, 0 deletions
diff --git a/app/models/ci/running_build.rb b/app/models/ci/running_build.rb
index ae38d54862d..43214b0c336 100644
--- a/app/models/ci/running_build.rb
+++ b/app/models/ci/running_build.rb
@@ -1,7 +1,18 @@
 # frozen_string_literal: true
 
 module Ci
+  # This model represents metadata for a running build.
+  # Despite the generic RunningBuild name, in this first iteration it applies only to shared runners
+  #   (see Ci::RunningBuild.upsert_shared_runner_build!).
+  # The decision to insert all of the running builds here was deferred to avoid the pressure on the database as
+  # at this time that was not necessary.
+  # We can reconsider the decision to limit this only to shared runners when there is more evidence that inserting all
+  # of the running builds there is worth the additional pressure.
   class RunningBuild < Ci::ApplicationRecord
+    include Ci::Partitionable
+
+    partitionable scope: :build
+
     belongs_to :project
     belongs_to :build, class_name: 'Ci::Build'
     belongs_to :runner, class_name: 'Ci::Runner'