34 lines
775 B
Ruby
34 lines
775 B
Ruby
class MigrateStageIdReferenceInBackground < ActiveRecord::Migration
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include Gitlab::Database::MigrationHelpers
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DOWNTIME = false
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BATCH_SIZE = 10000
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RANGE_SIZE = 1000
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MIGRATION = 'MigrateBuildStageIdReference'.freeze
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disable_ddl_transaction!
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class Build < ActiveRecord::Base
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self.table_name = 'ci_builds'
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include ::EachBatch
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end
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##
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# It will take around 3 days to process 20M ci_builds.
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#
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def up
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Build.where(stage_id: nil).each_batch(of: BATCH_SIZE) do |relation, index|
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relation.each_batch(of: RANGE_SIZE) do |relation|
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range = relation.pluck('MIN(id)', 'MAX(id)').first
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BackgroundMigrationWorker
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.perform_in(index * 2.minutes, MIGRATION, range)
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end
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end
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end
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def down
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# noop
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end
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end
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