24 lines
880 B
Ruby
24 lines
880 B
Ruby
# 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 SchedulePopulateMergeRequestAssigneesTable < ActiveRecord::Migration[5.0]
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include Gitlab::Database::MigrationHelpers
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DOWNTIME = false
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BATCH_SIZE = 10_000
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MIGRATION = 'PopulateMergeRequestAssigneesTable'
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DELAY_INTERVAL = 8.minutes.to_i
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disable_ddl_transaction!
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def up
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say 'Scheduling `PopulateMergeRequestAssigneesTable` jobs'
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# We currently have ~4_500_000 merge request records on GitLab.com.
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# This means it'll schedule ~450 jobs (10k MRs each) with a 8 minutes gap,
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# so this should take ~60 hours for all background migrations to complete.
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queue_background_migration_jobs_by_range_at_intervals(MergeRequest, MIGRATION, DELAY_INTERVAL, batch_size: BATCH_SIZE)
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end
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end
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