38 lines
997 B
Ruby
38 lines
997 B
Ruby
# frozen_string_literal: true
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class SchedulePopulateUserHighestRolesTable < ActiveRecord::Migration[6.0]
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include Gitlab::Database::MigrationHelpers
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BATCH_SIZE = 10_000
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DELAY = 5.minutes.to_i
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DOWNTIME = false
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MIGRATION = 'PopulateUserHighestRolesTable'
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disable_ddl_transaction!
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class User < ActiveRecord::Base
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include EachBatch
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scope :active, -> {
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where(state: 'active', user_type: nil, bot_type: nil)
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.where('ghost IS NOT TRUE')
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}
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end
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def up
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# We currently have ~5_300_000 users with the state active on GitLab.com.
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# This means it'll schedule ~530 jobs (10k Users each) with a 5 minutes gap,
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# so this should take ~44 hours for all background migrations to complete.
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User.active.each_batch(of: BATCH_SIZE) do |batch, index|
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range = batch.pluck(Arel.sql('MIN(id)'), Arel.sql('MAX(id)')).first
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delay = index * DELAY
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migrate_in(delay.seconds, MIGRATION, [*range])
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end
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end
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def down
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# nothing
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end
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end
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