1 files changed, 0 insertions, 52 deletions
diff --git a/lib/gitlab/background_migration/backfill_ci_project_mirrors.rb b/lib/gitlab/background_migration/backfill_ci_project_mirrors.rb
deleted file mode 100644
index ff6ab9928b0..00000000000
--- a/lib/gitlab/background_migration/backfill_ci_project_mirrors.rb
+++ /dev/null
@@ -1,52 +0,0 @@
-# frozen_string_literal: true
-
-module Gitlab
-  module BackgroundMigration
-    # A job to create ci_project_mirrors entries in batches
-    class BackfillCiProjectMirrors
-      class Project < ActiveRecord::Base # rubocop:disable Style/Documentation
-        include ::EachBatch
-
-        self.table_name = 'projects'
-
-        scope :base_query, -> do
-          select(:id, :namespace_id)
-        end
-      end
-
-      PAUSE_SECONDS = 0.1
-      SUB_BATCH_SIZE = 500
-
-      def perform(start_id, end_id)
-        batch_query = Project.base_query.where(id: start_id..end_id)
-        batch_query.each_batch(of: SUB_BATCH_SIZE) do |sub_batch|
-          first, last = sub_batch.pluck(Arel.sql('MIN(id), MAX(id)')).first
-          ranged_query = Project.unscoped.base_query.where(id: first..last)
-
-          update_sql = <<~SQL
-            INSERT INTO ci_project_mirrors (project_id, namespace_id)
-            #{insert_values(ranged_query)}
-            ON CONFLICT (project_id) DO NOTHING
-          SQL
-          # We do nothing on conflict because we consider they were already filled.
-
-          Project.connection.execute(update_sql)
-
-          sleep PAUSE_SECONDS
-        end
-
-        mark_job_as_succeeded(start_id, end_id)
-      end
-
-      private
-
-      def insert_values(batch)
-        batch.allow_cross_joins_across_databases(url: 'https://gitlab.com/gitlab-org/gitlab/-/issues/336433').to_sql
-      end
-
-      def mark_job_as_succeeded(*arguments)
-        Gitlab::Database::BackgroundMigrationJob.mark_all_as_succeeded('BackfillCiProjectMirrors', arguments)
-      end
-    end
-  end
-end