Revert "Merge branch 'jv-redis-trace-chunks-store' into 'master'"

This reverts merge request !62767

.gitignore

@@ -42,7 +42,6 @@ eslint-report.html
 /config/redis.cache.yml
 /config/redis.queues.yml
 /config/redis.shared_state.yml
-/config/redis.trace_chunks.yml
 /config/unicorn.rb
 /config/puma.rb
 /config/puma_actioncable.rb

app/controllers/admin/dashboard_controller.rb

@@ -15,7 +15,7 @@ class Admin::DashboardController < Admin::ApplicationController
     @groups = Group.order_id_desc.with_route.limit(10)
     @notices = Gitlab::ConfigChecker::PumaRuggedChecker.check
     @notices += Gitlab::ConfigChecker::ExternalDatabaseChecker.check
-    @redis_versions = [Gitlab::Redis::Queues, Gitlab::Redis::SharedState, Gitlab::Redis::Cache, Gitlab::Redis::TraceChunks].map(&:version).uniq
+    @redis_versions = [Gitlab::Redis::Queues, Gitlab::Redis::SharedState, Gitlab::Redis::Cache].map(&:version).uniq
   end
   # rubocop: enable CodeReuse/ActiveRecord
 

app/controllers/health_controller.rb

@@ -15,7 +15,6 @@ class HealthController < ActionController::Base
     Gitlab::HealthChecks::Redis::CacheCheck,
     Gitlab::HealthChecks::Redis::QueuesCheck,
     Gitlab::HealthChecks::Redis::SharedStateCheck,
-    Gitlab::HealthChecks::Redis::TraceChunksCheck,
     Gitlab::HealthChecks::GitalyCheck
   ].freeze
 

config/README.md

@@ -147,34 +147,3 @@ searched):
 3. the configuration file pointed to by the
 `GITLAB_REDIS_CONFIG_FILE` environment variable
 4. the configuration file `resque.yml`
-
-## redis.trace_chunks.yml
-
-If configured, `redis.trace_chunks.yml` overrides the
-`resque.yml` settings to configure the Redis database instance
-used for clients of `::Gitlab::Redis::TraceChunks` which stores CI trace chunks.
-
-Settings here can be overridden by the environment variable
-`GITLAB_REDIS_TRACE_CHUNKS_CONFIG_FILE` which provides
-an alternate location for configuration settings.
-
-The order of precedence for the URL used to connect to the Redis instance
-used for `trace_chunks` is:
-1. URL from a configuration file pointed to by the
-`GITLAB_REDIS_TRACE_CHUNKS_CONFIG_FILE` environment variable
-2. URL from `redis.trace_chunks.yml`
-3. URL from a configuration file pointed to by the
-`GITLAB_REDIS_CONFIG_FILE` environment variable
-4. URL from `resque.yml`
-5. `redis://localhost:6383`
-
-The order of precedence for all other configuration settings for `trace_chunks`
-are selected from only the first of the following files found (if a setting
-is not provided in an earlier file, the remainder of the files are not
-searched):
-1. the configuration file pointed to by the
-`GITLAB_REDIS_TRACE_CHUNKS_CONFIG_FILE` environment variable
-2. the configuration file `redis.trace_chunks.yml`
-3. the configuration file pointed to by the
-`GITLAB_REDIS_CONFIG_FILE` environment variable
-4. the configuration file `resque.yml`

config/initializers/7_redis.rb

@@ -8,4 +8,3 @@
 Gitlab::Redis::Cache.with { nil }
 Gitlab::Redis::Queues.with { nil }
 Gitlab::Redis::SharedState.with { nil }
-Gitlab::Redis::TraceChunks.with { nil }

config/redis.trace_chunks.yml.example

-# If you change this file in a merge request, please also create
-# a merge request on https://gitlab.com/gitlab-org/omnibus-gitlab/merge_requests
-#
-development:
-  url: redis://localhost:6379/13
-  #
-  # url: redis://localhost:6382
-  # sentinels:
-  #   -
-  #     host: localhost
-  #     port: 26382 # point to sentinel, not to redis port
-  #   -
-  #     host: replica2
-  #     port: 26382 # point to sentinel, not to redis port
-test:
-  url: redis://localhost:6379/13
-  #
-  # url: redis://localhost:6382
-production:
-  # Redis (single instance)
-  url: unix:/var/run/redis/redis.trace_chunks.sock
-  ##
-  # Redis + Sentinel (for HA)
-  #
-  # Please read instructions carefully before using it as you may lose data:
-  # http://redis.io/topics/sentinel
-  #
-  # You must specify a list of a few sentinels that will handle client connection
-  # please read here for more information: https://docs.gitlab.com/ee/administration/redis/index.html
-  ##
-  # url: redis://master:6382
-  # sentinels:
-  #   -
-  #     host: replica1
-  #     port: 26382 # point to sentinel, not to redis port
-  #   -
-  #     host: replica2
-  #     port: 26382 # point to sentinel, not to redis port

lib/gitlab/health_checks/redis/redis_check.rb

@@ -20,8 +20,7 @@ module Gitlab
           def check
             ::Gitlab::HealthChecks::Redis::CacheCheck.check_up &&
               ::Gitlab::HealthChecks::Redis::QueuesCheck.check_up &&
-              ::Gitlab::HealthChecks::Redis::SharedStateCheck.check_up &&
-              ::Gitlab::HealthChecks::Redis::TraceChunksCheck.check_up
+              ::Gitlab::HealthChecks::Redis::SharedStateCheck.check_up
           end
         end
       end

lib/gitlab/health_checks/redis/trace_chunks_check.rb

-# frozen_string_literal: true
-
-module Gitlab
-  module HealthChecks
-    module Redis
-      class TraceChunksCheck
-        extend SimpleAbstractCheck
-
-        class << self
-          def check_up
-            check
-          end
-
-          private
-
-          def metric_prefix
-            'redis_trace_chunks_ping'
-          end
-
-          def successful?(result)
-            result == 'PONG'
-          end
-
-          # rubocop: disable CodeReuse/ActiveRecord
-          def check
-            catch_timeout 10.seconds do
-              Gitlab::Redis::TraceChunks.with(&:ping)
-            end
-          end
-          # rubocop: enable CodeReuse/ActiveRecord
-        end
-      end
-    end
-  end
-end

lib/gitlab/instrumentation/redis.rb

@@ -8,9 +8,8 @@ module Gitlab
       Cache = Class.new(RedisBase).enable_redis_cluster_validation
       Queues = Class.new(RedisBase)
       SharedState = Class.new(RedisBase).enable_redis_cluster_validation
-      TraceChunks = Class.new(RedisBase).enable_redis_cluster_validation
 
-      STORAGES = [ActionCable, Cache, Queues, SharedState, TraceChunks].freeze
+      STORAGES = [ActionCable, Cache, Queues, SharedState].freeze
 
       # Milliseconds represented in seconds (from 1 millisecond to 2 seconds).
       QUERY_TIME_BUCKETS = [0.001, 0.0025, 0.005, 0.01, 0.025, 0.05, 0.1, 0.25, 0.5, 1, 2].freeze

lib/gitlab/redis/trace_chunks.rb

-# frozen_string_literal: true
-
-module Gitlab
-  module Redis
-    class TraceChunks < ::Gitlab::Redis::Wrapper
-      # The data we store on TraceChunks used to be stored on SharedState.
-      def self.config_fallback
-        SharedState
-      end
-    end
-  end
-end

lib/gitlab/redis/wrapper.rb

@@ -64,19 +64,8 @@ module Gitlab
 
         def config_file_name
           [
-            # Instance specific config sources:
             ENV["GITLAB_REDIS_#{store_name.underscore.upcase}_CONFIG_FILE"],
             config_file_path("redis.#{store_name.underscore}.yml"),
-
-            # The current Redis instance may have been split off from another one
-            # (e.g. TraceChunks was split off from SharedState). There are
-            # installations out there where the lowest priority config source
-            # (resque.yml) contains bogus values. In those cases, config_file_name
-            # should resolve to the instance we originated from (the
-            # "config_fallback") rather than resque.yml.
-            config_fallback&.config_file_name,
-
-            # Global config sources:
             ENV['GITLAB_REDIS_CONFIG_FILE'],
             config_file_path('resque.yml')
           ].compact.first
@@ -86,10 +75,6 @@ module Gitlab
           name.demodulize
         end
 
-        def config_fallback
-          nil
-        end
-
         def instrumentation_class
           "::Gitlab::Instrumentation::Redis::#{store_name}".constantize
         end

scripts/prepare_build.sh

@@ -42,9 +42,6 @@ sed -i 's|url:.*$|url: redis://redis:6379/11|g' config/redis.queues.yml
 cp config/redis.shared_state.yml.example config/redis.shared_state.yml
 sed -i 's|url:.*$|url: redis://redis:6379/12|g' config/redis.shared_state.yml
 
-cp config/redis.trace_chunks.yml.example config/redis.trace_chunks.yml
-sed -i 's|url:.*$|url: redis://redis:6379/13|g' config/redis.trace_chunks.yml
-
 if [ "$SETUP_DB" != "false" ]; then
   setup_db
 elif getent hosts postgres; then

spec/lib/gitlab/health_checks/redis/trace_chunks_check_spec.rb

-# frozen_string_literal: true
-
-require 'spec_helper'
-require_relative '../simple_check_shared'
-
-RSpec.describe Gitlab::HealthChecks::Redis::TraceChunksCheck do
-  include_examples 'simple_check', 'redis_trace_chunks_ping', 'RedisTraceChunks', 'PONG'
-end

spec/lib/gitlab/instrumentation/redis_spec.rb

@@ -68,8 +68,7 @@ RSpec.describe Gitlab::Instrumentation::Redis do
         .to contain_exactly(details_row.merge(storage: 'ActionCable'),
                             details_row.merge(storage: 'Cache'),
                             details_row.merge(storage: 'Queues'),
-                            details_row.merge(storage: 'SharedState'),
-                            details_row.merge(storage: 'TraceChunks'))
+                            details_row.merge(storage: 'SharedState'))
     end
   end
 end

spec/lib/gitlab/redis/trace_chunks_spec.rb

-# frozen_string_literal: true
-
-require 'spec_helper'
-
-RSpec.describe Gitlab::Redis::TraceChunks do
-  let(:instance_specific_config_file) { "config/redis.trace_chunks.yml" }
-  let(:environment_config_file_name) { "GITLAB_REDIS_TRACE_CHUNKS_CONFIG_FILE" }
-  let(:shared_state_config_file) { nil }
-
-  before do
-    allow(Gitlab::Redis::SharedState).to receive(:config_file_name).and_return(shared_state_config_file)
-  end
-
-  include_examples "redis_shared_examples"
-
-  describe '.config_file_name' do
-    subject { described_class.config_file_name }
-
-    let(:rails_root) { Dir.mktmpdir('redis_shared_examples') }
-
-    before do
-      # Undo top-level stub of config_file_name because we are testing that method now.
-      allow(described_class).to receive(:config_file_name).and_call_original
-
-      allow(described_class).to receive(:rails_root).and_return(rails_root)
-      FileUtils.mkdir_p(File.join(rails_root, 'config'))
-    end
-
-    after do
-      FileUtils.rm_rf(rails_root)
-    end
-
-    context 'when there is only a resque.yml' do
-      before do
-        FileUtils.touch(File.join(rails_root, 'config/resque.yml'))
-      end
-
-      it { expect(subject).to eq("#{rails_root}/config/resque.yml") }
-
-      context 'and there is a global env override' do
-        before do
-          stub_env('GITLAB_REDIS_CONFIG_FILE', 'global override')
-        end
-
-        it { expect(subject).to eq('global override') }
-
-        context 'and SharedState has a different config file' do
-          let(:shared_state_config_file) { 'shared state config file' }
-
-          it { expect(subject).to eq('shared state config file') }
-        end
-      end
-    end
-  end
-end