Enqueue all issues, at 50k batches

db/migrate/20211214012507_backfill_incident_issue_escalation_statuses.rb

@@ -3,7 +3,7 @@
 class BackfillIncidentIssueEscalationStatuses < Gitlab::Database::Migration[1.0]
   MIGRATION = 'BackfillIncidentIssueEscalationStatuses'
   DELAY_INTERVAL = 2.minutes
-  BATCH_SIZE = 1_000
+  BATCH_SIZE = 50_000
 
   disable_ddl_transaction!
 
@@ -11,12 +11,10 @@ class BackfillIncidentIssueEscalationStatuses < Gitlab::Database::Migration[1.0]
     include EachBatch
 
     self.table_name = 'issues'
-
-    scope :incidents, -> { where(issue_type: 1) }
   end
 
   def up
-    relation = Issue.incidents
+    relation = Issue.all
 
     queue_background_migration_jobs_by_range_at_intervals(
       relation, MIGRATION, DELAY_INTERVAL, batch_size: BATCH_SIZE, track_jobs: true)

spec/migrations/20211214012507_backfill_incident_issue_escalation_statuses_spec.rb

@@ -15,7 +15,7 @@ RSpec.describe BackfillIncidentIssueEscalationStatuses do
   end
 
   it 'schedules jobs for incident issues' do
-    issues.create!(project_id: project.id) # non-incident issue
+    issue_1 = issues.create!(project_id: project.id) # non-incident issue
     incident_1 = issues.create!(project_id: project.id, issue_type: 1)
     incident_2 = issues.create!(project_id: project.id, issue_type: 1)
 
@@ -24,10 +24,12 @@ RSpec.describe BackfillIncidentIssueEscalationStatuses do
         migrate!
 
         expect(described_class::MIGRATION).to be_scheduled_delayed_migration(
-          2.minutes, incident_1.id, incident_1.id)
+          2.minutes, issue_1.id, issue_1.id)
         expect(described_class::MIGRATION).to be_scheduled_delayed_migration(
-          4.minutes, incident_2.id, incident_2.id)
-        expect(BackgroundMigrationWorker.jobs.size).to eq(2)
+          4.minutes, incident_1.id, incident_1.id)
+        expect(described_class::MIGRATION).to be_scheduled_delayed_migration(
+          6.minutes, incident_2.id, incident_2.id)
+        expect(BackgroundMigrationWorker.jobs.size).to eq(3)
       end
     end
   end