debian-mirror-gitlab/spec/models/ci/build_trace_chunk_spec.rb
2021-01-30 21:13:32 +05:30

900 lines
26 KiB
Ruby

# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Ci::BuildTraceChunk, :clean_gitlab_redis_shared_state do
include ExclusiveLeaseHelpers
let_it_be(:build) { create(:ci_build, :running) }
let(:chunk_index) { 0 }
let(:data_store) { :redis }
let(:raw_data) { nil }
let(:build_trace_chunk) do
described_class.new(build: build, chunk_index: chunk_index, data_store: data_store, raw_data: raw_data)
end
it_behaves_like 'having unique enum values'
before do
stub_feature_flags(ci_enable_live_trace: true)
stub_artifacts_object_storage
end
describe 'chunk creation' do
let(:metrics) { spy('metrics') }
before do
allow(::Gitlab::Ci::Trace::Metrics)
.to receive(:new)
.and_return(metrics)
end
it 'increments trace operation chunked metric' do
build_trace_chunk.save!
expect(metrics)
.to have_received(:increment_trace_operation)
.with(operation: :chunked)
.once
end
end
context 'FastDestroyAll' do
let(:parent) { create(:project) }
let(:pipeline) { create(:ci_pipeline, project: parent) }
let!(:build) { create(:ci_build, :running, :trace_live, pipeline: pipeline, project: parent) }
let(:subjects) { build.trace_chunks }
describe 'Forbid #destroy and #destroy_all' do
it 'does not delete database rows and associted external data' do
expect(external_data_counter).to be > 0
expect(subjects.count).to be > 0
expect { subjects.first.destroy! }.to raise_error('`destroy` and `destroy_all` are forbidden. Please use `fast_destroy_all`')
expect { subjects.destroy_all }.to raise_error('`destroy` and `destroy_all` are forbidden. Please use `fast_destroy_all`') # rubocop: disable Cop/DestroyAll
expect(subjects.count).to be > 0
expect(external_data_counter).to be > 0
end
end
describe '.fast_destroy_all' do
it 'deletes database rows and associted external data' do
expect(external_data_counter).to be > 0
expect(subjects.count).to be > 0
expect { subjects.fast_destroy_all }.not_to raise_error
expect(subjects.count).to eq(0)
expect(external_data_counter).to eq(0)
end
end
describe '.use_fast_destroy' do
it 'performs cascading delete with fast_destroy_all' do
expect(external_data_counter).to be > 0
expect(subjects.count).to be > 0
expect { parent.destroy! }.not_to raise_error
expect(subjects.count).to eq(0)
expect(external_data_counter).to eq(0)
end
end
def external_data_counter
Gitlab::Redis::SharedState.with do |redis|
redis.scan_each(match: "gitlab:ci:trace:*:chunks:*").to_a.size
end
end
end
describe 'CHUNK_SIZE' do
it 'Chunk size can not be changed without special care' do
expect(described_class::CHUNK_SIZE).to eq(128.kilobytes)
end
end
describe '.all_stores' do
subject { described_class.all_stores }
it 'returns a correctly ordered array' do
is_expected.to eq(%w[redis database fog])
end
it 'returns redis store as the lowest precedence' do
expect(subject.first).to eq('redis')
end
it 'returns fog store as the highest precedence' do
expect(subject.last).to eq('fog')
end
end
describe '#data' do
subject { build_trace_chunk.data }
context 'when data_store is redis' do
let(:data_store) { :redis }
before do
build_trace_chunk.send(:unsafe_set_data!, +'Sample data in redis')
end
it { is_expected.to eq('Sample data in redis') }
end
context 'when data_store is database' do
let(:data_store) { :database }
let(:raw_data) { +'Sample data in database' }
it { is_expected.to eq('Sample data in database') }
end
context 'when data_store is fog' do
let(:data_store) { :fog }
context 'when legacy Fog is enabled' do
before do
stub_feature_flags(ci_trace_new_fog_store: false)
build_trace_chunk.send(:unsafe_set_data!, +'Sample data in fog')
end
it { is_expected.to eq('Sample data in fog') }
it 'returns a LegacyFog store' do
expect(described_class.get_store_class(data_store)).to be_a(Ci::BuildTraceChunks::LegacyFog)
end
end
context 'when new Fog is enabled' do
before do
stub_feature_flags(ci_trace_new_fog_store: true)
build_trace_chunk.send(:unsafe_set_data!, +'Sample data in fog')
end
it { is_expected.to eq('Sample data in fog') }
it 'returns a new Fog store' do
expect(described_class.get_store_class(data_store)).to be_a(Ci::BuildTraceChunks::Fog)
end
end
end
end
describe '#append' do
subject { build_trace_chunk.append(new_data, offset) }
let(:new_data) { +'Sample new data' }
let(:offset) { 0 }
let(:merged_data) { data + new_data.to_s }
shared_examples_for 'Appending correctly' do
context 'when offset is negative' do
let(:offset) { -1 }
it { expect { subject }.to raise_error('Offset is out of range') }
end
context 'when offset is bigger than data size' do
let(:offset) { data.bytesize + 1 }
it { expect { subject }.to raise_error('Offset is out of range') }
end
context 'when new data overflows chunk size' do
let(:new_data) { 'a' * (described_class::CHUNK_SIZE + 1) }
it { expect { subject }.to raise_error('Chunk size overflow') }
end
context 'when offset is EOF' do
let(:offset) { data.bytesize }
it 'appends' do
subject
expect(build_trace_chunk.data).to eq(merged_data)
end
context 'when the other process is appending' do
let(:lease_key) { "trace_write:#{build_trace_chunk.build.id}:chunks:#{build_trace_chunk.chunk_index}" }
before do
stub_exclusive_lease_taken(lease_key)
end
it 'raise an error' do
expect { subject }.to raise_error('Failed to obtain a lock')
end
end
context 'when new_data is nil' do
let(:new_data) { nil }
it 'raises an error' do
expect { subject }.to raise_error('New data is missing')
end
end
context 'when new_data is empty' do
let(:new_data) { +'' }
it 'does not append' do
subject
expect(build_trace_chunk.data).to eq(data)
end
it 'does not execute UPDATE' do
ActiveRecord::QueryRecorder.new { subject }.log.map do |query|
expect(query).not_to include('UPDATE')
end
end
end
end
context 'when offset is middle of datasize' do
let(:offset) { data.bytesize / 2 }
it 'appends' do
subject
expect(build_trace_chunk.data).to eq(data.byteslice(0, offset) + new_data)
end
end
end
shared_examples_for 'Scheduling sidekiq worker to flush data to persist store' do
context 'when new data fulfilled chunk size' do
let(:new_data) { +'a' * described_class::CHUNK_SIZE }
it 'schedules trace chunk flush worker' do
expect(Ci::BuildTraceChunkFlushWorker).to receive(:perform_async).once
subject
end
it 'migrates data to object storage', :sidekiq_might_not_need_inline do
perform_enqueued_jobs do
subject
build_trace_chunk.reload
expect(build_trace_chunk.checksum).to be_present
expect(build_trace_chunk.fog?).to be_truthy
expect(build_trace_chunk.data).to eq(new_data)
end
end
end
end
shared_examples_for 'Scheduling no sidekiq worker' do
context 'when new data fulfilled chunk size' do
let(:new_data) { +'a' * described_class::CHUNK_SIZE }
it 'does not schedule trace chunk flush worker' do
expect(Ci::BuildTraceChunkFlushWorker).not_to receive(:perform_async)
subject
end
it 'does not migrate data to object storage' do
perform_enqueued_jobs do
data_store = build_trace_chunk.data_store
subject
build_trace_chunk.reload
expect(build_trace_chunk.data_store).to eq(data_store)
end
end
end
end
context 'when data_store is redis' do
let(:data_store) { :redis }
context 'when there are no data' do
let(:data) { +'' }
it 'has no data' do
expect(build_trace_chunk.data).to be_empty
end
it 'does not read data when appending' do
expect(build_trace_chunk).not_to receive(:data)
build_trace_chunk.append(new_data, offset)
end
it_behaves_like 'Appending correctly'
it_behaves_like 'Scheduling sidekiq worker to flush data to persist store'
end
context 'when there are some data' do
let(:data) { +'Sample data in redis' }
before do
build_trace_chunk.send(:unsafe_set_data!, data)
end
it 'has data' do
expect(build_trace_chunk.data).to eq(data)
end
it_behaves_like 'Appending correctly'
it_behaves_like 'Scheduling sidekiq worker to flush data to persist store'
end
end
context 'when data_store is database' do
let(:data_store) { :database }
context 'when there are no data' do
let(:data) { +'' }
it 'has no data' do
expect(build_trace_chunk.data).to be_empty
end
it_behaves_like 'Appending correctly'
it_behaves_like 'Scheduling no sidekiq worker'
end
context 'when there are some data' do
let(:raw_data) { +'Sample data in database' }
let(:data) { raw_data }
it 'has data' do
expect(build_trace_chunk.data).to eq(data)
end
it_behaves_like 'Appending correctly'
it_behaves_like 'Scheduling no sidekiq worker'
end
end
context 'when data_store is fog' do
let(:data_store) { :fog }
context 'when there are no data' do
let(:data) { +'' }
it 'has no data' do
expect(build_trace_chunk.data).to be_empty
end
it_behaves_like 'Appending correctly'
it_behaves_like 'Scheduling no sidekiq worker'
end
context 'when there are some data' do
let(:data) { +'Sample data in fog' }
before do
build_trace_chunk.send(:unsafe_set_data!, data)
end
it 'has data' do
expect(build_trace_chunk.data).to eq(data)
end
it_behaves_like 'Appending correctly'
it_behaves_like 'Scheduling no sidekiq worker'
end
end
describe 'append metrics' do
let(:metrics) { spy('metrics') }
before do
allow(::Gitlab::Ci::Trace::Metrics)
.to receive(:new)
.and_return(metrics)
end
it 'increments trace operation appended metric' do
build_trace_chunk.append('123456', 0)
expect(metrics)
.to have_received(:increment_trace_operation)
.with(operation: :appended)
end
end
end
describe '#truncate' do
subject { build_trace_chunk.truncate(offset) }
shared_examples_for 'truncates' do
context 'when offset is negative' do
let(:offset) { -1 }
it { expect { subject }.to raise_error('Offset is out of range') }
end
context 'when offset is bigger than data size' do
let(:offset) { data.bytesize + 1 }
it { expect { subject }.to raise_error('Offset is out of range') }
end
context 'when offset is 10' do
let(:offset) { 10 }
it 'truncates' do
subject
expect(build_trace_chunk.data).to eq(data.byteslice(0, offset))
end
end
end
context 'when data_store is redis' do
let(:data_store) { :redis }
let(:data) { +'Sample data in redis' }
before do
build_trace_chunk.send(:unsafe_set_data!, data)
end
it_behaves_like 'truncates'
end
context 'when data_store is database' do
let(:data_store) { :database }
let(:raw_data) { +'Sample data in database' }
let(:data) { raw_data }
it_behaves_like 'truncates'
end
context 'when data_store is fog' do
let(:data_store) { :fog }
let(:data) { +'Sample data in fog' }
before do
build_trace_chunk.send(:unsafe_set_data!, data)
end
it_behaves_like 'truncates'
end
end
describe '#size' do
subject { build_trace_chunk.size }
context 'when data_store is redis' do
let(:data_store) { :redis }
context 'when data exists' do
let(:data) { +'Sample data in redis' }
before do
build_trace_chunk.send(:unsafe_set_data!, data)
end
it { is_expected.to eq(data.bytesize) }
end
context 'when data exists' do
it { is_expected.to eq(0) }
end
end
context 'when data_store is database' do
let(:data_store) { :database }
context 'when data exists' do
let(:raw_data) { +'Sample data in database' }
let(:data) { raw_data }
it { is_expected.to eq(data.bytesize) }
end
context 'when data does not exist' do
it { is_expected.to eq(0) }
end
end
context 'when data_store is fog' do
let(:data_store) { :fog }
context 'when data exists' do
let(:data) { +'Sample data in fog' }
let(:key) { "tmp/builds/#{build.id}/chunks/#{chunk_index}.log" }
before do
build_trace_chunk.send(:unsafe_set_data!, data)
end
it { is_expected.to eq(data.bytesize) }
end
context 'when data does not exist' do
it { is_expected.to eq(0) }
end
end
end
describe '#persist_data!' do
let(:build) { create(:ci_build, :running) }
before do
build_trace_chunk.save!
end
subject { build_trace_chunk.persist_data! }
context 'when data_store is redis' do
let(:data_store) { :redis }
context 'when data exists' do
before do
build_trace_chunk.send(:unsafe_set_data!, data)
end
context 'when data size reached CHUNK_SIZE' do
let(:data) { +'a' * described_class::CHUNK_SIZE }
it 'persists the data' do
expect(build_trace_chunk.redis?).to be_truthy
expect(Ci::BuildTraceChunks::Redis.new.data(build_trace_chunk)).to eq(data)
expect(Ci::BuildTraceChunks::Database.new.data(build_trace_chunk)).to be_nil
expect(Ci::BuildTraceChunks::Fog.new.data(build_trace_chunk)).to be_nil
subject
expect(build_trace_chunk.fog?).to be_truthy
expect(Ci::BuildTraceChunks::Redis.new.data(build_trace_chunk)).to be_nil
expect(Ci::BuildTraceChunks::Database.new.data(build_trace_chunk)).to be_nil
expect(Ci::BuildTraceChunks::Fog.new.data(build_trace_chunk)).to eq(data)
end
it 'calculates CRC32 checksum' do
subject
expect(build_trace_chunk.reload.checksum).to eq '3398914352'
end
end
context 'when data size has not reached CHUNK_SIZE' do
let(:data) { +'Sample data in redis' }
it 'does not persist the data and the orignal data is intact' do
expect { subject }.to raise_error(described_class::FailedToPersistDataError)
expect(build_trace_chunk.redis?).to be_truthy
expect(Ci::BuildTraceChunks::Redis.new.data(build_trace_chunk)).to eq(data)
expect(Ci::BuildTraceChunks::Database.new.data(build_trace_chunk)).to be_nil
expect(Ci::BuildTraceChunks::Fog.new.data(build_trace_chunk)).to be_nil
end
context 'when chunk is a final one' do
before do
create(:ci_build_pending_state, build: build)
end
it 'persists the data' do
subject
expect(build_trace_chunk.fog?).to be_truthy
end
end
context 'when the chunk has been modifed by a different worker' do
it 'reloads the chunk before migration' do
described_class
.find(build_trace_chunk.id)
.update!(data_store: :fog)
build_trace_chunk.persist_data!
end
it 'verifies the operation using optimistic locking' do
allow(build_trace_chunk)
.to receive(:save!)
.and_raise(ActiveRecord::StaleObjectError)
expect { build_trace_chunk.persist_data! }
.to raise_error(described_class::FailedToPersistDataError)
end
it 'does not allow flushing unpersisted chunk' do
build_trace_chunk.checksum = '12345'
expect { build_trace_chunk.persist_data! }
.to raise_error(described_class::FailedToPersistDataError,
/Modifed build trace chunk detected/)
end
end
context 'when the chunk is being locked by a different worker' do
let(:metrics) { spy('metrics') }
it 'does not raise an exception' do
lock_chunk do
expect { build_trace_chunk.persist_data! }.not_to raise_error
end
end
it 'increments stalled chunk trace metric' do
allow(build_trace_chunk)
.to receive(:metrics)
.and_return(metrics)
lock_chunk { build_trace_chunk.persist_data! }
expect(metrics)
.to have_received(:increment_trace_operation)
.with(operation: :stalled)
.once
end
def lock_chunk(&block)
"trace_write:#{build.id}:chunks:#{chunk_index}".then do |key|
build_trace_chunk.in_lock(key, &block)
end
end
end
end
end
context 'when data does not exist' do
it 'does not persist' do
expect { subject }.to raise_error(described_class::FailedToPersistDataError)
end
end
end
context 'when data_store is database' do
let(:data_store) { :database }
context 'when data exists' do
before do
build_trace_chunk.send(:unsafe_set_data!, data)
end
context 'when data size reached CHUNK_SIZE' do
let(:data) { +'a' * described_class::CHUNK_SIZE }
it 'persists the data' do
expect(build_trace_chunk.database?).to be_truthy
expect(Ci::BuildTraceChunks::Redis.new.data(build_trace_chunk)).to be_nil
expect(Ci::BuildTraceChunks::Database.new.data(build_trace_chunk)).to eq(data)
expect(Ci::BuildTraceChunks::Fog.new.data(build_trace_chunk)).to be_nil
subject
expect(build_trace_chunk.fog?).to be_truthy
expect(Ci::BuildTraceChunks::Redis.new.data(build_trace_chunk)).to be_nil
expect(Ci::BuildTraceChunks::Database.new.data(build_trace_chunk)).to be_nil
expect(Ci::BuildTraceChunks::Fog.new.data(build_trace_chunk)).to eq(data)
end
end
context 'when data size has not reached CHUNK_SIZE' do
let(:data) { +'Sample data in database' }
it 'does not persist the data and the orignal data is intact' do
expect { subject }.to raise_error(described_class::FailedToPersistDataError)
expect(build_trace_chunk.database?).to be_truthy
expect(Ci::BuildTraceChunks::Redis.new.data(build_trace_chunk)).to be_nil
expect(Ci::BuildTraceChunks::Database.new.data(build_trace_chunk)).to eq(data)
expect(Ci::BuildTraceChunks::Fog.new.data(build_trace_chunk)).to be_nil
end
context 'when chunk is a final one' do
before do
create(:ci_build_pending_state, build: build)
end
it 'persists the data' do
subject
expect(build_trace_chunk.fog?).to be_truthy
end
end
end
end
context 'when data does not exist' do
it 'does not persist' do
expect { subject }.to raise_error(described_class::FailedToPersistDataError)
end
end
end
context 'when data_store is fog' do
let(:data_store) { :fog }
context 'when data exists' do
before do
build_trace_chunk.send(:unsafe_set_data!, data)
end
context 'when data size reached CHUNK_SIZE' do
let(:data) { 'a' * described_class::CHUNK_SIZE }
it 'does not change data store' do
expect(build_trace_chunk.fog?).to be_truthy
expect(Ci::BuildTraceChunks::Redis.new.data(build_trace_chunk)).to be_nil
expect(Ci::BuildTraceChunks::Database.new.data(build_trace_chunk)).to be_nil
expect(Ci::BuildTraceChunks::Fog.new.data(build_trace_chunk)).to eq(data)
subject
expect(build_trace_chunk.fog?).to be_truthy
expect(Ci::BuildTraceChunks::Redis.new.data(build_trace_chunk)).to be_nil
expect(Ci::BuildTraceChunks::Database.new.data(build_trace_chunk)).to be_nil
expect(Ci::BuildTraceChunks::Fog.new.data(build_trace_chunk)).to eq(data)
end
end
context 'when data size has not reached CHUNK_SIZE' do
let(:data) { +'Sample data in fog' }
it 'does not raise error' do
expect { subject }.not_to raise_error
end
end
end
end
end
describe 'final?' do
let(:build) { create(:ci_build, :running) }
context 'when build pending state exists' do
before do
create(:ci_build_pending_state, build: build)
end
context 'when chunks is not the last one' do
before do
create(:ci_build_trace_chunk, chunk_index: 1, build: build)
end
it 'is not a final chunk' do
expect(build.reload.pending_state).to be_present
expect(build_trace_chunk).not_to be_final
end
end
context 'when chunks is the last one' do
it 'is a final chunk' do
expect(build.reload.pending_state).to be_present
expect(build_trace_chunk).to be_final
end
end
end
context 'when build pending state does not exist' do
context 'when chunks is not the last one' do
before do
create(:ci_build_trace_chunk, chunk_index: 1, build: build)
end
it 'is not a final chunk' do
expect(build.reload.pending_state).not_to be_present
expect(build_trace_chunk).not_to be_final
end
end
context 'when chunks is the last one' do
it 'is not a final chunk' do
expect(build.reload.pending_state).not_to be_present
expect(build_trace_chunk).not_to be_final
end
end
end
end
describe 'deletes data in redis after a parent record destroyed' do
let(:project) { create(:project) }
before do
pipeline = create(:ci_pipeline, project: project)
create(:ci_build, :running, :trace_live, pipeline: pipeline, project: project)
create(:ci_build, :running, :trace_live, pipeline: pipeline, project: project)
create(:ci_build, :running, :trace_live, pipeline: pipeline, project: project)
end
shared_examples_for 'deletes all build_trace_chunk and data in redis' do
it 'deletes all build_trace_chunk and data in redis', :sidekiq_might_not_need_inline do
Gitlab::Redis::SharedState.with do |redis|
expect(redis.scan_each(match: "gitlab:ci:trace:*:chunks:*").to_a.size).to eq(3)
end
expect(described_class.count).to eq(3)
subject
expect(described_class.count).to eq(0)
Gitlab::Redis::SharedState.with do |redis|
expect(redis.scan_each(match: "gitlab:ci:trace:*:chunks:*").to_a.size).to eq(0)
end
end
end
context 'when traces are archived' do
let(:subject) do
project.builds.each do |build|
build.reset.success!
end
end
it_behaves_like 'deletes all build_trace_chunk and data in redis'
end
context 'when project is destroyed' do
let(:subject) do
project.destroy!
end
it_behaves_like 'deletes all build_trace_chunk and data in redis'
end
end
describe 'comparable build trace chunks' do
describe '#<=>' do
context 'when chunks are associated with different builds' do
let(:first) { create(:ci_build_trace_chunk, build: build, chunk_index: 1) }
let(:second) { create(:ci_build_trace_chunk, chunk_index: 1) }
it 'returns nil' do
expect(first <=> second).to be_nil
end
end
context 'when there are two chunks with different indexes' do
let(:first) { create(:ci_build_trace_chunk, build: build, chunk_index: 1) }
let(:second) { create(:ci_build_trace_chunk, build: build, chunk_index: 0) }
it 'indicates the the first one is greater than then second' do
expect(first <=> second).to eq 1
end
end
context 'when there are two chunks with the same index within the same build' do
let(:chunk) { create(:ci_build_trace_chunk) }
it 'indicates the these are equal' do
expect(chunk <=> chunk).to be_zero # rubocop:disable Lint/UselessComparison
end
end
end
describe '#==' do
context 'when chunks have the same index' do
let(:chunk) { create(:ci_build_trace_chunk) }
it 'indicates that the chunks are equal' do
expect(chunk).to eq chunk
end
end
context 'when chunks have different indexes' do
let(:first) { create(:ci_build_trace_chunk, build: build, chunk_index: 1) }
let(:second) { create(:ci_build_trace_chunk, build: build, chunk_index: 0) }
it 'indicates that the chunks are not equal' do
expect(first).not_to eq second
end
end
context 'when chunks are associated with different builds' do
let(:first) { create(:ci_build_trace_chunk, build: build, chunk_index: 1) }
let(:second) { create(:ci_build_trace_chunk, chunk_index: 1) }
it 'indicates that the chunks are not equal' do
expect(first).not_to eq second
end
end
end
end
end