1 files changed, 35 insertions, 0 deletions
diff --git a/db/post_migrate/20180529152628_schedule_to_archive_legacy_traces.rb b/db/post_migrate/20180529152628_schedule_to_archive_legacy_traces.rb
new file mode 100644
index 00000000000..965cd3a8714
--- /dev/null
+++ b/db/post_migrate/20180529152628_schedule_to_archive_legacy_traces.rb
@@ -0,0 +1,35 @@
+class ScheduleToArchiveLegacyTraces < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+  BATCH_SIZE = 5000
+  BACKGROUND_MIGRATION_CLASS = 'ArchiveLegacyTraces'
+
+  disable_ddl_transaction!
+
+  class Build < ActiveRecord::Base
+    include EachBatch
+    self.table_name = 'ci_builds'
+    self.inheritance_column = :_type_disabled # Disable STI
+
+    scope :type_build, -> { where(type: 'Ci::Build') }
+
+    scope :finished, -> { where(status: [:success, :failed, :canceled]) }
+
+    scope :without_archived_trace, -> do
+      where('NOT EXISTS (SELECT 1 FROM ci_job_artifacts WHERE ci_builds.id = ci_job_artifacts.job_id AND ci_job_artifacts.file_type = 3)')
+    end
+  end
+
+  def up
+    queue_background_migration_jobs_by_range_at_intervals(
+      ::ScheduleToArchiveLegacyTraces::Build.type_build.finished.without_archived_trace,
+      BACKGROUND_MIGRATION_CLASS,
+      5.minutes,
+      batch_size: BATCH_SIZE)
+  end
+
+  def down
+    # noop
+  end
+end