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class AddStateIdToIssuables < ActiveRecord::Migration[5.0]
include Gitlab::Database::MigrationHelpers
#include AfterCommitQueue
DOWNTIME = false
MIGRATION = 'SyncIssuablesStateId'.freeze
# 2019-02-12 Gitlab.com issuable numbers
# issues count: 13587305
# merge requests count: 18925274
# Using this 25000 as batch size should take around 26 hours
# to migrate both issues and merge requests
BATCH_SIZE = 25000
DELAY_INTERVAL = 5.minutes.to_i
class Issue < ActiveRecord::Base
include EachBatch
self.table_name = 'issues'
end
class MergeRequest < ActiveRecord::Base
include EachBatch
self.table_name = 'merge_requests'
end
def up
add_column :issues, :state_id, :integer, limit: 2
add_column :merge_requests, :state_id, :integer, limit: 2
# Is this safe?
# Added to avoid an warning about jobs running inside transactions.
# Since we only add a column this should be ok
Sidekiq::Worker.skipping_transaction_check do
queue_background_migration_jobs_by_range_at_intervals(Issue.where(state_id: nil), MIGRATION, DELAY_INTERVAL, batch_size: BATCH_SIZE)
queue_background_migration_jobs_by_range_at_intervals(MergeRequest.where(state_id: nil), MIGRATION, DELAY_INTERVAL, batch_size: BATCH_SIZE)
end
end
def down
remove_column :issues, :state_id
remove_column :merge_requests, :state_id
end
end
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