75 lines
2.7 KiB
Ruby
75 lines
2.7 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
require 'spec_helper'
|
|
|
|
RSpec.describe Gitlab::Metrics::Samplers::ThreadsSampler do
|
|
subject { described_class.new }
|
|
|
|
it_behaves_like 'metrics sampler', 'THREADS_SAMPLER'
|
|
|
|
describe '#sample' do
|
|
before do
|
|
described_class::METRIC_DESCRIPTIONS.each_key do |metric|
|
|
allow(subject.metrics[metric]).to receive(:set)
|
|
end
|
|
end
|
|
|
|
it 'sets the gauge for the concurrency total' do
|
|
expect(Gitlab::Runtime).to receive(:max_threads).and_return(9000)
|
|
expect(subject.metrics[:max_expected_threads]).to receive(:set).with({}, 9000)
|
|
|
|
subject.sample
|
|
end
|
|
|
|
context 'thread counts' do
|
|
it 'reports if any of the threads per group uses the db' do
|
|
threads = [
|
|
fake_thread(described_class::SIDEKIQ_WORKER_THREAD_NAME, true), fake_thread(described_class::SIDEKIQ_WORKER_THREAD_NAME, false),
|
|
fake_thread(described_class::SIDEKIQ_WORKER_THREAD_NAME, nil)
|
|
]
|
|
allow(Thread).to receive(:list).and_return(threads)
|
|
|
|
expect(subject.metrics[:running_threads]).to receive(:set)
|
|
.with({ uses_db_connection: 'yes', thread_name: described_class::SIDEKIQ_WORKER_THREAD_NAME }, 1)
|
|
expect(subject.metrics[:running_threads]).to receive(:set)
|
|
.with({ uses_db_connection: 'no', thread_name: described_class::SIDEKIQ_WORKER_THREAD_NAME }, 2)
|
|
|
|
subject.sample
|
|
end
|
|
|
|
context 'thread names', :aggregate_failures do
|
|
where(:thread_names, :expected_names) do
|
|
[
|
|
[[nil], %w(unnamed)],
|
|
[['puma threadpool 1', 'puma threadpool 001', 'puma threadpool 002'], ['puma threadpool']],
|
|
[%w(sidekiq_worker_thread), %w(sidekiq_worker_thread)],
|
|
[%w(some_sampler some_exporter), %w(some_sampler some_exporter)],
|
|
[%w(unknown thing), %w(unrecognized)]
|
|
]
|
|
end
|
|
|
|
with_them do
|
|
it do
|
|
allow(Thread).to receive(:list).and_return(thread_names.map { |name| fake_thread(name) })
|
|
|
|
expected_names.each do |expected_name|
|
|
expect(subject.metrics[:running_threads]).to receive(:set)
|
|
.with({ uses_db_connection: 'yes', thread_name: expected_name }, instance_of(Integer))
|
|
expect(subject.metrics[:running_threads]).to receive(:set)
|
|
.with({ uses_db_connection: 'no', thread_name: expected_name }, instance_of(Integer))
|
|
end
|
|
|
|
subject.sample
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
def fake_thread(name = nil, db_connection = nil)
|
|
thready = { uses_db_connection: db_connection }
|
|
allow(thready).to receive(:name).and_return(name)
|
|
|
|
thready
|
|
end
|
|
end
|
|
end
|