2019-09-16 12:06:26 +00:00
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# frozen_string_literal: true
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# See http://doc.gitlab.com/ce/development/migration_style_guide.html
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# for more information on how to write migrations for GitLab.
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class ScheduleProjectAnyApprovalRuleMigration < ActiveRecord::Migration[5.2]
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include Gitlab::Database::MigrationHelpers
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DOWNTIME = false
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BATCH_SIZE = 5_000
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MIGRATION = 'PopulateAnyApprovalRuleForProjects'
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DELAY_INTERVAL = 8.minutes.to_i
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disable_ddl_transaction!
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class Project < ActiveRecord::Base
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include EachBatch
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self.table_name = 'projects'
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scope :with_approvals_before_merge, -> { where('approvals_before_merge <> 0') }
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end
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def up
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2019-10-01 09:10:39 +00:00
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return unless Gitlab.ee?
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2019-09-16 12:06:26 +00:00
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add_concurrent_index :projects, :id,
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name: 'tmp_projects_with_approvals_before_merge',
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where: 'approvals_before_merge <> 0'
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say "Scheduling `#{MIGRATION}` jobs"
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# We currently have ~43k project records with non-zero approvals_before_merge on GitLab.com.
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# This means it'll schedule ~9 jobs (5k projects each) with a 8 minutes gap,
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# so this should take ~1 hour for all background migrations to complete.
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#
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# The approximate expected number of affected rows is: 18k
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queue_background_migration_jobs_by_range_at_intervals(
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ScheduleProjectAnyApprovalRuleMigration::Project.with_approvals_before_merge,
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MIGRATION, DELAY_INTERVAL, batch_size: BATCH_SIZE)
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remove_concurrent_index_by_name(:projects, 'tmp_projects_with_approvals_before_merge')
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end
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def down
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# no-op
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end
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end
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