Commit 019b06b9 authored by Bob Van Landuyt's avatar Bob Van Landuyt Committed by Rémy Coutable
Browse files

Load a project's CI status in batch from redis

parent be953f01a54e
......@@ -166,6 +166,11 @@ def project_list_cache_key(project)
key
end
def load_pipeline_status(projects)
Gitlab::Cache::Ci::ProjectPipelineStatus.
load_in_batch_for_projects(projects)
end
private
def repo_children_classes(field)
......
......@@ -74,6 +74,7 @@ def update_forks_visibility_level
attr_accessor :new_default_branch
attr_accessor :old_path_with_namespace
attr_writer :pipeline_status
alias_attribute :title, :name
......@@ -1181,6 +1182,7 @@ def running_or_pending_build_count(force: false)
end
end
# Lazy loading of the `pipeline_status` attribute
def pipeline_status
@pipeline_status ||= Gitlab::Cache::Ci::ProjectPipelineStatus.load_for_project(self)
end
......
......@@ -7,6 +7,7 @@
- skip_namespace = false unless local_assigns[:skip_namespace] == true
- show_last_commit_as_description = false unless local_assigns[:show_last_commit_as_description] == true
- remote = false unless local_assigns[:remote] == true
- load_pipeline_status(projects)
.js-projects-list-holder
- if projects.any?
......
---
title: Fetch pipeline status in batch from redis
merge_request: 10785
author:
......@@ -15,18 +15,51 @@ def self.load_for_project(project)
end
end
def self.load_in_batch_for_projects(projects)
cached_results_for_projects(projects).zip(projects).each do |result, project|
project.pipeline_status = new(project, result)
project.pipeline_status.load_status
end
end
def self.cached_results_for_projects(projects)
result = Gitlab::Redis.with do |redis|
redis.multi do
projects.each do |project|
cache_key = cache_key_for_project(project)
redis.exists(cache_key)
redis.hmget(cache_key, :sha, :status, :ref)
end
end
end
result.each_slice(2).map do |(cache_key_exists, (sha, status, ref))|
pipeline_info = { sha: sha, status: status, ref: ref }
{ loaded_from_cache: cache_key_exists, pipeline_info: pipeline_info }
end
end
def self.cache_key_for_project(project)
"projects/#{project.id}/pipeline_status"
end
def self.update_for_pipeline(pipeline)
new(pipeline.project,
sha: pipeline.sha,
status: pipeline.status,
ref: pipeline.ref).store_in_cache_if_needed
pipeline_info = {
sha: pipeline.sha,
status: pipeline.status,
ref: pipeline.ref
}
new(pipeline.project, pipeline_info: pipeline_info).
store_in_cache_if_needed
end
def initialize(project, sha: nil, status: nil, ref: nil)
def initialize(project, pipeline_info: {}, loaded_from_cache: nil)
@project = project
@sha = sha
@ref = ref
@status = status
@sha = pipeline_info[:sha]
@ref = pipeline_info[:ref]
@status = pipeline_info[:status]
@loaded = loaded_from_cache
end
def has_status?
......@@ -85,6 +118,8 @@ def delete_from_cache
end
def has_cache?
return self.loaded unless self.loaded.nil?
Gitlab::Redis.with do |redis|
redis.exists(cache_key)
end
......@@ -95,7 +130,7 @@ def loaded?
end
def cache_key
"projects/#{project.id}/build_status"
self.class.cache_key_for_project(project)
end
end
end
......
......@@ -46,14 +46,15 @@
end
describe "#pipeline_status_cache_key" do
let(:pipeline_status) do
Gitlab::Cache::Ci::ProjectPipelineStatus
.new(build(:project), sha: '123abc', status: 'success')
end
it "builds a cache key for pipeline status" do
expect(helper.pipeline_status_cache_key(pipeline_status))
.to eq("pipeline-status/123abc-success")
pipeline_status = Gitlab::Cache::Ci::ProjectPipelineStatus.new(
build(:project),
pipeline_info: {
sha: "123abc",
status: "success"
}
)
expect(helper.pipeline_status_cache_key(pipeline_status)).to eq("pipeline-status/123abc-success")
end
end
end
......@@ -103,6 +103,18 @@
end
end
describe '#load_pipeline_status' do
it 'loads the pipeline status in batch' do
project = build(:empty_project)
helper.load_pipeline_status([project])
# Skip lazy loading of the `pipeline_status` attribute
pipeline_status = project.instance_variable_get('@pipeline_status')
expect(pipeline_status).to be_a(Gitlab::Cache::Ci::ProjectPipelineStatus)
end
end
describe 'link_to_member' do
let(:group) { create(:group) }
let(:project) { create(:empty_project, group: group) }
......
require 'spec_helper'
describe Gitlab::Cache::Ci::ProjectPipelineStatus do
describe Gitlab::Cache::Ci::ProjectPipelineStatus, :redis do
let(:project) { create(:project) }
let(:pipeline_status) { described_class.new(project) }
let(:cache_key) { "projects/#{project.id}/pipeline_status" }
describe '.load_for_project' do
it "loads the status" do
......@@ -12,12 +13,110 @@
end
end
describe 'loading in batches' do
let(:status) { 'success' }
let(:sha) { '424d1b73bc0d3cb726eb7dc4ce17a4d48552f8c6' }
let(:ref) { 'master' }
let(:pipeline_info) { { sha: sha, status: status, ref: ref } }
let(:project_without_status) { create(:project) }
describe '.load_in_batch_for_projects' do
it 'preloads pipeline_status on projects' do
described_class.load_in_batch_for_projects([project])
# Don't call the accessor that would lazy load the variable
expect(project.instance_variable_get('@pipeline_status')).to be_a(described_class)
end
describe 'without a status in redis' do
it 'loads the status from a commit when it was not in redis' do
empty_status = { sha: nil, status: nil, ref: nil }
fake_pipeline = described_class.new(
project_without_status,
pipeline_info: empty_status,
loaded_from_cache: false
)
expect(described_class).to receive(:new).
with(project_without_status,
pipeline_info: empty_status,
loaded_from_cache: false).
and_return(fake_pipeline)
expect(fake_pipeline).to receive(:load_from_project)
expect(fake_pipeline).to receive(:store_in_cache)
described_class.load_in_batch_for_projects([project_without_status])
end
it 'only connects to redis twice' do
# Once to load, once to store in the cache
expect(Gitlab::Redis).to receive(:with).exactly(2).and_call_original
described_class.load_in_batch_for_projects([project_without_status])
expect(project_without_status.pipeline_status).not_to be_nil
end
end
describe 'when a status was cached in redis' do
before do
Gitlab::Redis.with do |redis|
redis.mapped_hmset(cache_key,
{ sha: sha, status: status, ref: ref })
end
end
it 'loads the correct status' do
described_class.load_in_batch_for_projects([project])
pipeline_status = project.instance_variable_get('@pipeline_status')
expect(pipeline_status.sha).to eq(sha)
expect(pipeline_status.status).to eq(status)
expect(pipeline_status.ref).to eq(ref)
end
it 'only connects to redis once' do
expect(Gitlab::Redis).to receive(:with).exactly(1).and_call_original
described_class.load_in_batch_for_projects([project])
expect(project.pipeline_status).not_to be_nil
end
it "doesn't load the status separatly" do
expect_any_instance_of(described_class).not_to receive(:load_from_project)
expect_any_instance_of(described_class).not_to receive(:load_from_cache)
described_class.load_in_batch_for_projects([project])
end
end
end
describe '.cached_results_for_projects' do
it 'loads a status from redis for all projects' do
Gitlab::Redis.with do |redis|
redis.mapped_hmset(cache_key, { sha: sha, status: status, ref: ref })
end
result = [{ loaded_from_cache: false, pipeline_info: { sha: nil, status: nil, ref: nil } },
{ loaded_from_cache: true, pipeline_info: pipeline_info }]
expect(described_class.cached_results_for_projects([project_without_status, project])).to eq(result)
end
end
end
describe '.update_for_pipeline' do
it 'refreshes the cache if nescessary' do
pipeline = build_stubbed(:ci_pipeline, sha: '123456', status: 'success')
pipeline = build_stubbed(:ci_pipeline,
sha: '123456', status: 'success', ref: 'master')
fake_status = double
expect(described_class).to receive(:new).
with(pipeline.project, sha: '123456', status: 'success', ref: 'master').
with(pipeline.project,
pipeline_info: {
sha: '123456', status: 'success', ref: 'master'
}).
and_return(fake_status)
expect(fake_status).to receive(:store_in_cache_if_needed)
......@@ -110,7 +209,7 @@
pipeline_status.status = 'failed'
pipeline_status.store_in_cache
read_sha, read_status = Gitlab::Redis.with { |redis| redis.hmget("projects/#{project.id}/build_status", :sha, :status) }
read_sha, read_status = Gitlab::Redis.with { |redis| redis.hmget(cache_key, :sha, :status) }
expect(read_sha).to eq('123456')
expect(read_status).to eq('failed')
......@@ -120,10 +219,10 @@
describe '#store_in_cache_if_needed', :redis do
it 'stores the state in the cache when the sha is the HEAD of the project' do
create(:ci_pipeline, :success, project: project, sha: project.commit.sha)
build_status = described_class.load_for_project(project)
pipeline_status = described_class.load_for_project(project)
build_status.store_in_cache_if_needed
sha, status, ref = Gitlab::Redis.with { |redis| redis.hmget("projects/#{project.id}/build_status", :sha, :status, :ref) }
pipeline_status.store_in_cache_if_needed
sha, status, ref = Gitlab::Redis.with { |redis| redis.hmget(cache_key, :sha, :status, :ref) }
expect(sha).not_to be_nil
expect(status).not_to be_nil
......@@ -131,10 +230,13 @@
end
it "doesn't store the status in redis when the sha is not the head of the project" do
other_status = described_class.new(project, sha: "123456", status: "failed")
other_status = described_class.new(
project,
pipeline_info: { sha: "123456", status: "failed" }
)
other_status.store_in_cache_if_needed
sha, status = Gitlab::Redis.with { |redis| redis.hmget("projects/#{project.id}/build_status", :sha, :status) }
sha, status = Gitlab::Redis.with { |redis| redis.hmget(cache_key, :sha, :status) }
expect(sha).to be_nil
expect(status).to be_nil
......@@ -142,11 +244,18 @@
it "deletes the cache if the repository doesn't have a head commit" do
empty_project = create(:empty_project)
Gitlab::Redis.with { |redis| redis.mapped_hmset("projects/#{empty_project.id}/build_status", { sha: "sha", status: "pending", ref: 'master' }) }
other_status = described_class.new(empty_project, sha: "123456", status: "failed")
Gitlab::Redis.with do |redis|
redis.mapped_hmset(cache_key,
{ sha: 'sha', status: 'pending', ref: 'master' })
end
other_status = described_class.new(empty_project,
pipeline_info: {
sha: "123456", status: "failed"
})
other_status.store_in_cache_if_needed
sha, status, ref = Gitlab::Redis.with { |redis| redis.hmget("projects/#{empty_project.id}/build_status", :sha, :status, :ref) }
sha, status, ref = Gitlab::Redis.with { |redis| redis.hmget("projects/#{empty_project.id}/pipeline_status", :sha, :status, :ref) }
expect(sha).to be_nil
expect(status).to be_nil
......@@ -157,9 +266,13 @@
describe "with a status in redis", :redis do
let(:status) { 'success' }
let(:sha) { '424d1b73bc0d3cb726eb7dc4ce17a4d48552f8c6' }
let(:ref) { 'master' }
before do
Gitlab::Redis.with { |redis| redis.mapped_hmset("projects/#{project.id}/build_status", { sha: sha, status: status }) }
Gitlab::Redis.with do |redis|
redis.mapped_hmset(cache_key,
{ sha: sha, status: status, ref: ref })
end
end
describe '#load_from_cache' do
......@@ -168,6 +281,7 @@
expect(pipeline_status.sha).to eq(sha)
expect(pipeline_status.status).to eq(status)
expect(pipeline_status.ref).to eq(ref)
end
end
......@@ -181,7 +295,7 @@
it 'deletes values from redis' do
pipeline_status.delete_from_cache
key_exists = Gitlab::Redis.with { |redis| redis.exists("projects/#{project.id}/build_status") }
key_exists = Gitlab::Redis.with { |redis| redis.exists(cache_key) }
expect(key_exists).to be_falsy
end
......
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