105 lines
3.4 KiB
Ruby
105 lines
3.4 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Gitlab::Database::Reindexing::IndexSelection, feature_category: :database do
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include Database::DatabaseHelpers
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subject { described_class.new(Gitlab::Database::PostgresIndex.all).to_a }
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let(:connection) { ApplicationRecord.connection }
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before do
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swapout_view_for_table(:postgres_index_bloat_estimates, connection: connection)
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swapout_view_for_table(:postgres_indexes, connection: connection)
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create_list(:postgres_index, 10, ondisk_size_bytes: 10.gigabytes).each_with_index do |index, i|
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create(:postgres_index_bloat_estimate, index: index, bloat_size_bytes: 2.gigabyte * (i + 1))
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end
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end
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def execute(sql)
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connection.execute(sql)
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end
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it 'orders by highest relative bloat first' do
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expected = Gitlab::Database::PostgresIndex.all.sort_by(&:relative_bloat_level).reverse.map(&:name)
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expect(subject.map(&:name)).to eq(expected)
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end
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it 'excludes indexes with a relative bloat level below 20%' do
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excluded = create(
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:postgres_index_bloat_estimate,
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index: create(:postgres_index, ondisk_size_bytes: 10.gigabytes),
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bloat_size_bytes: 1.9.gigabyte # 19% relative index bloat
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)
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expect(subject).not_to include(excluded.index)
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end
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it 'excludes indexes smaller than 1 GB ondisk size' do
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excluded = create(
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:postgres_index_bloat_estimate,
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index: create(:postgres_index, ondisk_size_bytes: 0.99.gigabytes),
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bloat_size_bytes: 0.8.gigabyte
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)
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expect(subject).not_to include(excluded.index)
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end
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it 'includes indexes larger than 100 GB ondisk size' do
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included = create(
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:postgres_index_bloat_estimate,
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index: create(:postgres_index, ondisk_size_bytes: 101.gigabytes),
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bloat_size_bytes: 25.gigabyte
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)
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expect(subject).to include(included.index)
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end
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context 'with time frozen' do
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around do |example|
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freeze_time { example.run }
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end
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it 'does not return indexes with reindex action in the last 10 days' do
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not_recently_reindexed = Gitlab::Database::PostgresIndex.all.each do |index|
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create(:reindex_action, index: index, action_end: Time.zone.now - 10.days - 1.minute)
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end
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create_list(:postgres_index, 10, ondisk_size_bytes: 10.gigabytes).each_with_index do |index, i|
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create(:postgres_index_bloat_estimate, index: index, bloat_size_bytes: 2.gigabyte * (i + 1))
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create(:reindex_action, index: index, action_end: Time.zone.now)
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end
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expect(subject.map(&:name).sort).to eq(not_recently_reindexed.map(&:name).sort)
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end
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end
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context 'with restricted tables' do
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let!(:ci_builds) do
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create(
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:postgres_index_bloat_estimate,
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index: create(:postgres_index, ondisk_size_bytes: 100.gigabytes, tablename: 'ci_builds'),
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bloat_size_bytes: 20.gigabyte
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)
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end
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context 'when executed on Fridays', time_travel_to: '2022-12-16T09:44:07Z' do
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it { expect(subject).not_to include(ci_builds.index) }
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end
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context 'when executed on Saturdays', time_travel_to: '2022-12-17T09:44:07Z' do
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it { expect(subject).to include(ci_builds.index) }
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end
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context 'when executed on Sundays', time_travel_to: '2022-12-18T09:44:07Z' do
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it { expect(subject).not_to include(ci_builds.index) }
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end
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context 'when executed on Mondays', time_travel_to: '2022-12-19T09:44:07Z' do
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it { expect(subject).not_to include(ci_builds.index) }
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end
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end
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end
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