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# frozen_string_literal: true
require 'set'
class ScheduleSyncBlockingIssuesCount < ActiveRecord::Migration[6.0]
include Gitlab::Database::MigrationHelpers
BATCH_SIZE = 50
DELAY_INTERVAL = 120.seconds.to_i
MIGRATION = 'SyncBlockingIssuesCount'
disable_ddl_transaction!
class TmpIssueLink < ActiveRecord::Base
self.table_name = 'issue_links'
include EachBatch
end
def up
return unless Gitlab.ee?
issue_link_ids = SortedSet.new
TmpIssueLink.distinct.select(:source_id).where(link_type: 1).each_batch(of: 1000, column: :source_id) do |query|
issue_link_ids.merge(query.pluck(:source_id))
end
TmpIssueLink.distinct.select(:target_id).where(link_type: 2).each_batch(of: 1000, column: :target_id) do |query|
issue_link_ids.merge(query.pluck(:target_id))
end
issue_link_ids.each_slice(BATCH_SIZE).with_index do |items, index|
start_id, *, end_id = items
arguments = [start_id, end_id]
final_delay = DELAY_INTERVAL * (index + 1)
migrate_in(final_delay, MIGRATION, arguments)
end
end
def down
# NO OP
end
end
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