mirror of
https://github.com/wahyd4/gitlabhq.git
synced 2026-08-13 14:46:05 +10:00
Yorick Peterse
620e7bb3d6
This removes the need for Sidekiq and any overhead/problems introduced by TCP. There are a few things to take into account: 1. When writing data to InfluxDB you may still get an error if the server becomes unavailable during the write. Because of this we're catching all exceptions and just ignore them (for now). 2. Writing via UDP apparently requires the timestamp to be in nanoseconds. Without this data either isn't written properly. 3. Due to the restrictions on UDP buffer sizes we're writing metrics one by one, instead of writing all of them at once.
85 lines
2.3 KiB
Ruby
85 lines
2.3 KiB
Ruby
require 'spec_helper'
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describe Gitlab::Metrics do
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describe '.pool_size' do
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it 'returns a Fixnum' do
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expect(described_class.pool_size).to be_an_instance_of(Fixnum)
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end
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end
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describe '.timeout' do
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it 'returns a Fixnum' do
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expect(described_class.timeout).to be_an_instance_of(Fixnum)
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end
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end
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describe '.enabled?' do
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it 'returns a boolean' do
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expect([true, false].include?(described_class.enabled?)).to eq(true)
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end
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end
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describe '.hostname' do
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it 'returns a String containing the hostname' do
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expect(described_class.hostname).to eq(Socket.gethostname)
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end
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end
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describe '.last_relative_application_frame' do
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it 'returns an Array containing a file path and line number' do
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file, line = described_class.last_relative_application_frame
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expect(line).to eq(__LINE__ - 2)
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expect(file).to eq('spec/lib/gitlab/metrics_spec.rb')
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end
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end
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describe '#submit_metrics' do
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it 'prepares and writes the metrics to InfluxDB' do
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connection = double(:connection)
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pool = double(:pool)
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expect(pool).to receive(:with).and_yield(connection)
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expect(connection).to receive(:write_points).with(an_instance_of(Array))
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expect(Gitlab::Metrics).to receive(:pool).and_return(pool)
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described_class.submit_metrics([{ 'series' => 'kittens', 'tags' => {} }])
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end
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end
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describe '#prepare_metrics' do
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it 'returns a Hash with the keys as Symbols' do
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metrics = described_class.
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prepare_metrics([{ 'values' => {}, 'tags' => {} }])
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expect(metrics).to eq([{ values: {}, tags: {} }])
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end
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it 'escapes tag values' do
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metrics = described_class.prepare_metrics([
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{ 'values' => {}, 'tags' => { 'foo' => 'bar=' } }
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])
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expect(metrics).to eq([{ values: {}, tags: { 'foo' => 'bar\\=' } }])
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end
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it 'drops empty tags' do
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metrics = described_class.prepare_metrics([
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{ 'values' => {}, 'tags' => { 'cats' => '', 'dogs' => nil } }
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])
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expect(metrics).to eq([{ values: {}, tags: {} }])
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end
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end
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describe '#escape_value' do
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it 'escapes an equals sign' do
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expect(described_class.escape_value('foo=')).to eq('foo\\=')
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end
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it 'casts values to Strings' do
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expect(described_class.escape_value(10)).to eq('10')
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end
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end
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end
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