1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
# frozen_string_literal: true
require 'spec_helper'
RSpec.describe LooseForeignKeys::DeletedRecord, type: :model do
let_it_be(:table) { 'public.projects' }
describe 'class methods' do
let_it_be(:deleted_record_1) { described_class.create!(fully_qualified_table_name: table, primary_key_value: 5) }
let_it_be(:deleted_record_2) { described_class.create!(fully_qualified_table_name: table, primary_key_value: 1) }
let_it_be(:deleted_record_3) { described_class.create!(fully_qualified_table_name: 'public.other_table', primary_key_value: 3) }
let_it_be(:deleted_record_4) { described_class.create!(fully_qualified_table_name: table, primary_key_value: 1) } # duplicate
describe '.load_batch_for_table' do
it 'loads records and orders them by creation date' do
records = described_class.load_batch_for_table(table, 10)
expect(records).to eq([deleted_record_1, deleted_record_2, deleted_record_4])
end
it 'supports configurable batch size' do
records = described_class.load_batch_for_table(table, 2)
expect(records).to eq([deleted_record_1, deleted_record_2])
end
end
describe '.mark_records_processed' do
it 'updates all records' do
records = described_class.load_batch_for_table(table, 10)
described_class.mark_records_processed(records)
expect(described_class.status_pending.count).to eq(1)
expect(described_class.status_processed.count).to eq(3)
end
end
end
describe 'sliding_list partitioning' do
let(:connection) { described_class.connection }
let(:partition_manager) { Gitlab::Database::Partitioning::PartitionManager.new(described_class) }
describe 'next_partition_if callback' do
let(:active_partition) { described_class.partitioning_strategy.active_partition.value }
subject(:value) { described_class.partitioning_strategy.next_partition_if.call(active_partition) }
context 'when the partition is empty' do
it { is_expected.to eq(false) }
end
context 'when the partition has records' do
before do
described_class.create!(fully_qualified_table_name: 'public.table', primary_key_value: 1, status: :processed)
described_class.create!(fully_qualified_table_name: 'public.table', primary_key_value: 2, status: :pending)
end
it { is_expected.to eq(false) }
end
context 'when the first record of the partition is older than PARTITION_DURATION' do
before do
described_class.create!(
fully_qualified_table_name: 'public.table',
primary_key_value: 1,
created_at: (described_class::PARTITION_DURATION + 1.day).ago)
described_class.create!(fully_qualified_table_name: 'public.table', primary_key_value: 2)
end
it { is_expected.to eq(true) }
context 'when the lfk_automatic_partition_creation FF is off' do
before do
stub_feature_flags(lfk_automatic_partition_creation: false)
end
it { is_expected.to eq(false) }
end
end
end
describe 'detach_partition_if callback' do
let(:active_partition) { described_class.partitioning_strategy.active_partition.value }
subject(:value) { described_class.partitioning_strategy.detach_partition_if.call(active_partition) }
context 'when the partition contains unprocessed records' do
before do
described_class.create!(fully_qualified_table_name: 'public.table', primary_key_value: 1, status: :processed)
described_class.create!(fully_qualified_table_name: 'public.table', primary_key_value: 2, status: :pending)
end
it { is_expected.to eq(false) }
end
context 'when the partition contains only processed records' do
before do
described_class.create!(fully_qualified_table_name: 'public.table', primary_key_value: 1, status: :processed)
described_class.create!(fully_qualified_table_name: 'public.table', primary_key_value: 2, status: :processed)
end
it { is_expected.to eq(true) }
context 'when the lfk_automatic_partition_dropping FF is off' do
before do
stub_feature_flags(lfk_automatic_partition_dropping: false)
end
it { is_expected.to eq(false) }
end
end
end
describe 'the behavior of the strategy' do
it 'moves records to new partitions as time passes', :freeze_time do
# We start with partition 1
expect(described_class.partitioning_strategy.current_partitions.map(&:value)).to eq([1])
# it's not a day old yet so no new partitions are created
partition_manager.sync_partitions
expect(described_class.partitioning_strategy.current_partitions.map(&:value)).to eq([1])
# add one record so the next partition will be created
described_class.create!(fully_qualified_table_name: 'public.table', primary_key_value: 1)
# after traveling forward a day
travel(described_class::PARTITION_DURATION + 1.second)
# a new partition is created
partition_manager.sync_partitions
expect(described_class.partitioning_strategy.current_partitions.map(&:value)).to eq([1, 2])
# and we can insert to the new partition
expect { described_class.create!(fully_qualified_table_name: table, primary_key_value: 5) }.not_to raise_error
# after processing old records
LooseForeignKeys::DeletedRecord.for_partition(1).update_all(status: :processed)
partition_manager.sync_partitions
# the old one is removed
expect(described_class.partitioning_strategy.current_partitions.map(&:value)).to eq([2])
# and we only have the newly created partition left.
expect(described_class.count).to eq(1)
end
end
end
end
|