1 files changed, 0 insertions, 44 deletions
diff --git a/db/post_migrate/20180521162137_migrate_remaining_mr_metrics_populating_background_migration.rb b/db/post_migrate/20180521162137_migrate_remaining_mr_metrics_populating_background_migration.rb
deleted file mode 100644
index 39666a0cd2a..00000000000
--- a/db/post_migrate/20180521162137_migrate_remaining_mr_metrics_populating_background_migration.rb
+++ /dev/null
@@ -1,44 +0,0 @@
-class MigrateRemainingMrMetricsPopulatingBackgroundMigration < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-  BATCH_SIZE = 5_000
-  MIGRATION = 'PopulateMergeRequestMetricsWithEventsData'
-  DELAY_INTERVAL = 10.minutes
-
-  disable_ddl_transaction!
-
-  class MergeRequest < ActiveRecord::Base
-    self.table_name = 'merge_requests'
-
-    include ::EachBatch
-  end
-
-  def up
-    # Perform any ongoing background migration that might still be running. This
-    # avoids scheduling way too many of the same jobs on self-hosted instances
-    # if they're updating GitLab across multiple versions. The "Take one"
-    # migration was executed on 10.4 on
-    # SchedulePopulateMergeRequestMetricsWithEventsData.
-    Gitlab::BackgroundMigration.steal(MIGRATION)
-
-    metrics_not_exists_clause = <<~SQL
-      NOT EXISTS (SELECT 1 FROM merge_request_metrics
-                  WHERE merge_request_metrics.merge_request_id = merge_requests.id)
-    SQL
-
-    relation = MergeRequest.where(metrics_not_exists_clause)
-
-    # We currently have ~400_000 MR records without metrics on GitLab.com.
-    # This means it'll schedule ~80 jobs (5000 MRs each) with a 10 minutes gap,
-    # so this should take ~14 hours for all background migrations to complete.
-    #
-    queue_background_migration_jobs_by_range_at_intervals(relation,
-                                                          MIGRATION,
-                                                          DELAY_INTERVAL,
-                                                          batch_size: BATCH_SIZE)
-  end
-
-  def down
-  end
-end