77 lines
2.5 KiB
Ruby
77 lines
2.5 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
module Gitlab
|
|
module BackgroundMigration
|
|
# A job to create ci_namespace_mirrors entries in batches
|
|
class BackfillCiNamespaceMirrors
|
|
class Namespace < ActiveRecord::Base # rubocop:disable Style/Documentation
|
|
include ::EachBatch
|
|
|
|
self.table_name = 'namespaces'
|
|
self.inheritance_column = nil
|
|
|
|
scope :base_query, -> do
|
|
select(:id, :parent_id)
|
|
end
|
|
end
|
|
|
|
PAUSE_SECONDS = 0.1
|
|
SUB_BATCH_SIZE = 500
|
|
|
|
def perform(start_id, end_id)
|
|
batch_query = Namespace.base_query.where(id: start_id..end_id)
|
|
batch_query.each_batch(of: SUB_BATCH_SIZE) do |sub_batch|
|
|
first, last = sub_batch.pluck(Arel.sql('MIN(id), MAX(id)')).first
|
|
ranged_query = Namespace.unscoped.base_query.where(id: first..last)
|
|
|
|
update_sql = <<~SQL
|
|
INSERT INTO ci_namespace_mirrors (namespace_id, traversal_ids)
|
|
#{insert_values(ranged_query)}
|
|
ON CONFLICT (namespace_id) DO NOTHING
|
|
SQL
|
|
# We do nothing on conflict because we consider they were already filled.
|
|
|
|
Namespace.connection.execute(update_sql)
|
|
|
|
sleep PAUSE_SECONDS
|
|
end
|
|
|
|
mark_job_as_succeeded(start_id, end_id)
|
|
end
|
|
|
|
private
|
|
|
|
def insert_values(batch)
|
|
calculated_traversal_ids(
|
|
batch.allow_cross_joins_across_databases(url: 'https://gitlab.com/gitlab-org/gitlab/-/issues/336433')
|
|
)
|
|
end
|
|
|
|
# Copied from lib/gitlab/background_migration/backfill_namespace_traversal_ids_children.rb
|
|
def calculated_traversal_ids(batch)
|
|
<<~SQL
|
|
WITH RECURSIVE cte(source_id, namespace_id, parent_id, height) AS (
|
|
(
|
|
SELECT batch.id, batch.id, batch.parent_id, 1
|
|
FROM (#{batch.to_sql}) AS batch
|
|
)
|
|
UNION ALL
|
|
(
|
|
SELECT cte.source_id, n.id, n.parent_id, cte.height+1
|
|
FROM namespaces n, cte
|
|
WHERE n.id = cte.parent_id
|
|
)
|
|
)
|
|
SELECT flat_hierarchy.source_id as namespace_id,
|
|
array_agg(flat_hierarchy.namespace_id ORDER BY flat_hierarchy.height DESC) as traversal_ids
|
|
FROM (SELECT * FROM cte FOR UPDATE) flat_hierarchy
|
|
GROUP BY flat_hierarchy.source_id
|
|
SQL
|
|
end
|
|
|
|
def mark_job_as_succeeded(*arguments)
|
|
Gitlab::Database::BackgroundMigrationJob.mark_all_as_succeeded('BackfillCiNamespaceMirrors', arguments)
|
|
end
|
|
end
|
|
end
|
|
end
|