diff options
Diffstat (limited to 'db/post_migrate/20201015073808_schedule_blocked_by_links_replacement.rb')
-rw-r--r-- | db/post_migrate/20201015073808_schedule_blocked_by_links_replacement.rb | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/db/post_migrate/20201015073808_schedule_blocked_by_links_replacement.rb b/db/post_migrate/20201015073808_schedule_blocked_by_links_replacement.rb new file mode 100644 index 00000000000..7833d7c4c04 --- /dev/null +++ b/db/post_migrate/20201015073808_schedule_blocked_by_links_replacement.rb @@ -0,0 +1,30 @@ +# frozen_string_literal: true + +class ScheduleBlockedByLinksReplacement < ActiveRecord::Migration[6.0] + include Gitlab::Database::MigrationHelpers + + DOWNTIME = false + INTERVAL = 2.minutes + # at the time of writing there were 47600 blocked_by issues: + # estimated time is 48 batches * 2 minutes -> 100 minutes + BATCH_SIZE = 1000 + MIGRATION = 'ReplaceBlockedByLinks' + + disable_ddl_transaction! + + class IssueLink < ActiveRecord::Base + include EachBatch + + self.table_name = 'issue_links' + end + + def up + relation = IssueLink.where(link_type: 2) + + queue_background_migration_jobs_by_range_at_intervals( + relation, MIGRATION, INTERVAL, batch_size: BATCH_SIZE) + end + + def down + end +end |