Remove ElasticIndexerWorker in major release [RUN AS-IF-FOSS]

.rubocop_manual_todo.yml

@@ -2507,7 +2507,6 @@ Gitlab/NamespacedClass:
     - 'ee/app/workers/elastic_full_index_worker.rb'
     - 'ee/app/workers/elastic_index_bulk_cron_worker.rb'
     - 'ee/app/workers/elastic_index_initial_bulk_cron_worker.rb'
-    - 'ee/app/workers/elastic_indexer_worker.rb'
     - 'ee/app/workers/elastic_indexing_control_worker.rb'
     - 'ee/app/workers/elastic_namespace_indexer_worker.rb'
     - 'ee/app/workers/elastic_namespace_rollout_worker.rb'

config/sidekiq_queues.yml

@@ -120,8 +120,6 @@
   - 1
 - - elastic_full_index
   - 1
-- - elastic_indexer
-  - 1
 - - elastic_indexing_control
   - 1
 - - elastic_namespace_indexer

doc/administration/operations/extra_sidekiq_processes.md

@@ -38,11 +38,11 @@ To start multiple processes:
    process, and values in each item determine the queues it works on.
 
    For example, the following setting creates three Sidekiq processes, one to run on
-   `elastic_indexer`, one to run on `mailers`, and one process running on all queues:
+   `elastic_commit_indexer`, one to run on `mailers`, and one process running on all queues:
 
    ```ruby
    sidekiq['queue_groups'] = [
-     "elastic_indexer",
+     "elastic_commit_indexer",
      "mailers",
      "*"
    ]
@@ -53,7 +53,7 @@ To start multiple processes:
 
    ```ruby
    sidekiq['queue_groups'] = [
-     "elastic_indexer, elastic_commit_indexer",
+     "elastic_commit_indexer, elastic_association_indexer",
      "mailers",
      "*"
    ]

doc/administration/sidekiq.md

@@ -26,7 +26,7 @@ you want using steps 1 and 2 from the GitLab downloads page.
    ## Optional: Enable extra Sidekiq processes
    sidekiq_cluster['enable'] = true
    sidekiq['queue_groups'] = [
-     "elastic_indexer",
+     "elastic_commit_indexer",
      "*"
    ]
    ```

doc/integration/elasticsearch.md

@@ -622,7 +622,7 @@ Sidekiq processes](../administration/operations/extra_sidekiq_processes.md).
 
    This enqueues a Sidekiq job for each project that needs to be indexed.
    You can view the jobs in **Admin Area > Monitoring > Background Jobs > Queues Tab**
-   and click `elastic_indexer`, or you can query indexing status using a Rake task:
+   and click `elastic_commit_indexer`, or you can query indexing status using a Rake task:
 
    ```shell
    # Omnibus installations

ee/app/workers/all_queues.yml

@@ -941,15 +941,6 @@
   :weight: 1
   :idempotent:
   :tags: []
-- :name: elastic_indexer
-  :worker_name: ElasticIndexerWorker
-  :feature_category: :global_search
-  :has_external_dependencies:
-  :urgency: :throttled
-  :resource_boundary: :unknown
-  :weight: 1
-  :idempotent:
-  :tags: []
 - :name: elastic_indexing_control
   :worker_name: ElasticIndexingControlWorker
   :feature_category: :global_search

ee/app/workers/elastic_indexer_worker.rb

-# frozen_string_literal: true
-
-# Usage of this worker is deprecated, please remove it in the next major version
-class ElasticIndexerWorker # rubocop:disable Scalability/IdempotentWorker
-  include ApplicationWorker
-
-  sidekiq_options retry: 2
-  feature_category :global_search
-  urgency :throttled
-  loggable_arguments 0, 1, 4
-
-  def perform(operation, class_name, record_id, es_id, options = {})
-    return true unless Gitlab::CurrentSettings.elasticsearch_indexing?
-
-    klass = class_name.constantize
-    record = klass.find(record_id)
-
-    case operation.to_s
-    when /index/
-      record.maintain_elasticsearch_create
-    when /update/
-      record.maintain_elasticsearch_update
-    when /delete/
-      record.maintain_elasticsearch_destroy
-    end
-  end
-end

ee/spec/workers/elastic_indexer_worker_spec.rb

-# frozen_string_literal: true
-
-require 'spec_helper'
-
-RSpec.describe ElasticIndexerWorker do
-  subject { described_class.new }
-
-  describe '#perform' do
-    context 'indexing is enabled' do
-      using RSpec::Parameterized::TableSyntax
-
-      let(:project) { instance_double(Project, id: 1, es_id: 1) }
-
-      before do
-        stub_ee_application_setting(elasticsearch_indexing: true)
-        expect(Project).to receive(:find).and_return(project)
-      end
-
-      where(:operation, :method) do
-        'index'   |  'maintain_elasticsearch_create'
-        'update'  |  'maintain_elasticsearch_update'
-        'delete'  |  'maintain_elasticsearch_destroy'
-      end
-
-      with_them do
-        it 'calls respective methods' do
-          expect(project).to receive(method.to_sym)
-
-          subject.perform(operation, 'Project', project.id, project.es_id)
-        end
-      end
-    end
-
-    context 'indexing is disabled' do
-      before do
-        stub_ee_application_setting(elasticsearch_indexing: false)
-      end
-
-      it 'returns true if ES disabled' do
-        expect(Milestone).not_to receive(:find).with(1)
-
-        expect(subject.perform('index', 'Milestone', 1, 1)).to be_truthy
-      end
-    end
-  end
-end

spec/workers/every_sidekiq_worker_spec.rb

@@ -212,7 +212,6 @@ RSpec.describe 'Every Sidekiq worker' do
         'ElasticCommitIndexerWorker' => 2,
         'ElasticDeleteProjectWorker' => 2,
         'ElasticFullIndexWorker' => 2,
-        'ElasticIndexerWorker' => 2,
         'ElasticIndexingControlWorker' => 3,
         'ElasticNamespaceIndexerWorker' => 2,
         'ElasticNamespaceRolloutWorker' => 2,