debian-mirror-gitlab/spec/lib/gitlab/sidekiq_middleware/server_metrics_spec.rb
2021-11-18 22:05:49 +05:30

344 lines
12 KiB
Ruby

# frozen_string_literal: true
require 'spec_helper'
# rubocop: disable RSpec/MultipleMemoizedHelpers
RSpec.describe Gitlab::SidekiqMiddleware::ServerMetrics do
shared_examples "a metrics middleware" do
context "with mocked prometheus" do
include_context 'server metrics with mocked prometheus'
describe '.initialize_process_metrics' do
it 'sets concurrency metrics' do
expect(concurrency_metric).to receive(:set).with({}, Sidekiq.options[:concurrency].to_i)
described_class.initialize_process_metrics
end
it 'initializes sidekiq_jobs_completion_seconds for the workers in the current Sidekiq process' do
allow(Gitlab::SidekiqConfig)
.to receive(:current_worker_queue_mappings)
.and_return('MergeWorker' => 'merge', 'Ci::BuildFinishedWorker' => 'default')
expect(completion_seconds_metric)
.to receive(:get).with(queue: 'merge',
worker: 'MergeWorker',
urgency: 'high',
external_dependencies: 'no',
feature_category: 'source_code_management',
boundary: '',
job_status: 'done')
expect(completion_seconds_metric)
.to receive(:get).with(queue: 'merge',
worker: 'MergeWorker',
urgency: 'high',
external_dependencies: 'no',
feature_category: 'source_code_management',
boundary: '',
job_status: 'fail')
expect(completion_seconds_metric)
.to receive(:get).with(queue: 'default',
worker: 'Ci::BuildFinishedWorker',
urgency: 'high',
external_dependencies: 'no',
feature_category: 'continuous_integration',
boundary: 'cpu',
job_status: 'done')
expect(completion_seconds_metric)
.to receive(:get).with(queue: 'default',
worker: 'Ci::BuildFinishedWorker',
urgency: 'high',
external_dependencies: 'no',
feature_category: 'continuous_integration',
boundary: 'cpu',
job_status: 'fail')
described_class.initialize_process_metrics
end
context 'when the sidekiq_job_completion_metric_initialize feature flag is disabled' do
before do
stub_feature_flags(sidekiq_job_completion_metric_initialize: false)
end
it 'sets the concurrency metric' do
expect(concurrency_metric).to receive(:set).with({}, Sidekiq.options[:concurrency].to_i)
described_class.initialize_process_metrics
end
it 'does not initialize sidekiq_jobs_completion_seconds' do
allow(Gitlab::SidekiqConfig)
.to receive(:current_worker_queue_mappings)
.and_return('MergeWorker' => 'merge', 'Ci::BuildFinishedWorker' => 'default')
expect(completion_seconds_metric).not_to receive(:get)
described_class.initialize_process_metrics
end
end
end
describe '#call' do
include_context 'server metrics call'
it 'yields block' do
expect { |b| subject.call(worker, job, :test, &b) }.to yield_control.once
end
it 'calls BackgroundTransaction' do
expect_next_instance_of(Gitlab::Metrics::BackgroundTransaction) do |instance|
expect(instance).to receive(:run)
end
subject.call(worker, job, :test) {}
end
it 'sets queue specific metrics' do
expect(running_jobs_metric).to receive(:increment).with(labels, -1)
expect(running_jobs_metric).to receive(:increment).with(labels, 1)
expect(queue_duration_seconds).to receive(:observe).with(labels, queue_duration_for_job) if queue_duration_for_job
expect(user_execution_seconds_metric).to receive(:observe).with(labels_with_job_status, thread_cputime_duration)
expect(db_seconds_metric).to receive(:observe).with(labels_with_job_status, db_duration)
expect(gitaly_seconds_metric).to receive(:observe).with(labels_with_job_status, gitaly_duration)
expect(completion_seconds_metric).to receive(:observe).with(labels_with_job_status, monotonic_time_duration)
expect(redis_seconds_metric).to receive(:observe).with(labels_with_job_status, redis_duration)
expect(elasticsearch_seconds_metric).to receive(:observe).with(labels_with_job_status, elasticsearch_duration)
expect(redis_requests_total).to receive(:increment).with(labels_with_job_status, redis_calls)
expect(elasticsearch_requests_total).to receive(:increment).with(labels_with_job_status, elasticsearch_calls)
subject.call(worker, job, :test) { nil }
end
it 'sets sidekiq_jobs_completion_seconds values that are compatible with those from .initialize_process_metrics' do
label_validator = Prometheus::Client::LabelSetValidator.new([:le])
allow(Gitlab::SidekiqConfig)
.to receive(:current_worker_queue_mappings)
.and_return('MergeWorker' => 'merge', 'Ci::BuildFinishedWorker' => 'default')
allow(completion_seconds_metric).to receive(:get) do |labels|
expect { label_validator.validate(labels) }.not_to raise_error
end
allow(completion_seconds_metric).to receive(:observe) do |labels, _duration|
expect { label_validator.validate(labels) }.not_to raise_error
end
described_class.initialize_process_metrics
subject.call(worker, job, :test) { nil }
end
it 'sets the thread name if it was nil' do
allow(Thread.current).to receive(:name).and_return(nil)
expect(Thread.current).to receive(:name=).with(Gitlab::Metrics::Samplers::ThreadsSampler::SIDEKIQ_WORKER_THREAD_NAME)
subject.call(worker, job, :test) { nil }
end
context 'when job_duration is not available' do
let(:queue_duration_for_job) { nil }
it 'does not set the queue_duration_seconds histogram' do
expect(queue_duration_seconds).not_to receive(:observe)
subject.call(worker, job, :test) { nil }
end
end
context 'when error is raised' do
let(:job_status) { :fail }
it 'sets sidekiq_jobs_failed_total and reraises' do
expect(failed_total_metric).to receive(:increment).with(labels, 1)
expect { subject.call(worker, job, :test) { raise StandardError, "Failed" } }.to raise_error(StandardError, "Failed")
end
end
context 'when job is retried' do
let(:job) { { 'retry_count' => 1 } }
it 'sets sidekiq_jobs_retried_total metric' do
expect(retried_total_metric).to receive(:increment)
subject.call(worker, job, :test) { nil }
end
end
end
end
context "with prometheus integrated" do
describe '#call' do
it 'yields block' do
expect { |b| subject.call(worker, job, :test, &b) }.to yield_control.once
end
context 'when error is raised' do
let(:job_status) { :fail }
it 'sets sidekiq_jobs_failed_total and reraises' do
expect { subject.call(worker, job, :test) { raise StandardError, "Failed" } }.to raise_error(StandardError, "Failed")
end
end
end
end
end
it_behaves_like 'metrics middleware with worker attribution' do
let(:job_status) { :done }
let(:labels_with_job_status) { labels.merge(job_status: job_status.to_s) }
end
context 'DB load balancing' do
subject { described_class.new }
let(:queue) { :test }
let(:worker_class) { worker.class }
let(:worker) { TestWorker.new }
let(:client_middleware) { Gitlab::Database::LoadBalancing::SidekiqClientMiddleware.new }
let(:load_balancer) { double.as_null_object }
let(:load_balancing_metric) { double('load balancing metric') }
let(:job) { { "retry" => 3, "job_id" => "a180b47c-3fd6-41b8-81e9-34da61c3400e" } }
def process_job
client_middleware.call(worker_class, job, queue, double) do
worker_class.process_job(job)
end
end
include_context 'server metrics with mocked prometheus'
include_context 'server metrics call'
before do
stub_const('TestWorker', Class.new)
TestWorker.class_eval do
include Sidekiq::Worker
include WorkerAttributes
def perform(*args)
end
end
allow(::Gitlab::Database::LoadBalancing).to receive_message_chain(:proxy, :load_balancer).and_return(load_balancer)
allow(load_balancing_metric).to receive(:increment)
allow(Gitlab::Metrics).to receive(:counter).with(:sidekiq_load_balancing_count, anything).and_return(load_balancing_metric)
end
around do |example|
with_sidekiq_server_middleware do |chain|
chain.add Gitlab::Database::LoadBalancing::SidekiqServerMiddleware
chain.add described_class
Sidekiq::Testing.inline! { example.run }
end
end
shared_context 'worker declaring data consistency' do
let(:worker_class) { LBTestWorker }
before do
stub_const('LBTestWorker', Class.new(TestWorker))
LBTestWorker.class_eval do
include ApplicationWorker
data_consistency :delayed
end
end
end
describe '#call' do
context 'when worker declares data consistency' do
include_context 'worker declaring data consistency'
it 'increments load balancing counter with defined data consistency' do
process_job
expect(load_balancing_metric).to have_received(:increment).with(
a_hash_including(
data_consistency: :delayed,
load_balancing_strategy: 'replica'
), 1)
end
end
context 'when worker does not declare data consistency' do
it 'increments load balancing counter with default data consistency' do
process_job
expect(load_balancing_metric).to have_received(:increment).with(
a_hash_including(
data_consistency: :always,
load_balancing_strategy: 'primary'
), 1)
end
end
end
end
context 'feature attribution' do
let(:test_worker) do
category = worker_category
Class.new do
include Sidekiq::Worker
include WorkerAttributes
if category
feature_category category
else
feature_category_not_owned!
end
def perform
end
end
end
let(:context_category) { 'continuous_integration' }
let(:job) { { 'meta.feature_category' => 'continuous_integration' } }
before do
stub_const('TestWorker', test_worker)
end
around do |example|
with_sidekiq_server_middleware do |chain|
Gitlab::SidekiqMiddleware.server_configurator(
metrics: true,
arguments_logger: false,
memory_killer: false
).call(chain)
Sidekiq::Testing.inline! { example.run }
end
end
include_context 'server metrics with mocked prometheus'
include_context 'server metrics call'
context 'when a worker has a feature category' do
let(:worker_category) { 'authentication_and_authorization' }
it 'uses that category for metrics' do
expect(completion_seconds_metric).to receive(:observe).with(a_hash_including(feature_category: worker_category), anything)
TestWorker.process_job(job)
end
end
context 'when a worker does not have a feature category' do
let(:worker_category) { nil }
it 'uses the category from the context for metrics' do
expect(completion_seconds_metric).to receive(:observe).with(a_hash_including(feature_category: context_category), anything)
TestWorker.process_job(job)
end
end
end
end
# rubocop: enable RSpec/MultipleMemoizedHelpers