Geo: Increase parallelism by scheduling project repositories by shard

app/workers/geo/base_scheduler_worker.rb

@@ -69,6 +69,9 @@ module Geo
 
     private
 
+    def worker_metadata
+    end
+
     def db_retrieve_batch_size
       DB_RETRIEVE_BATCH_SIZE
     end
@@ -119,7 +122,8 @@ module Geo
     end
 
     def schedule_jobs
-      num_to_schedule = [max_capacity - scheduled_job_ids.size, pending_resources.size].min
+      capacity = max_capacity
+      num_to_schedule = [capacity - scheduled_job_ids.size, pending_resources.size].min
       to_schedule = pending_resources.shift(num_to_schedule)
 
       scheduled = to_schedule.map do |args|
@@ -129,7 +133,7 @@ module Geo
 
       scheduled_jobs.concat(scheduled)
 
-      log_info("Loop #{loops}", enqueued: scheduled.length, pending: pending_resources.length, scheduled: scheduled_jobs.length)
+      log_info("Loop #{loops}", enqueued: scheduled.length, pending: pending_resources.length, scheduled: scheduled_jobs.length, capacity: capacity)
     end
 
     def scheduled_job_ids
@@ -152,11 +156,13 @@ module Geo
 
     def log_info(message, extra_args = {})
       args = { class: self.class.name, message: message }.merge(extra_args)
+      args.merge!(worker_metadata) if worker_metadata
       Gitlab::Geo::Logger.info(args)
     end
 
     def log_error(message, extra_args = {})
       args = { class: self.class.name, message: message }.merge(extra_args)
+      args.merge!(worker_metadata) if worker_metadata
       Gitlab::Geo::Logger.error(args)
     end
   end

app/workers/geo/repository_shard_sync_worker.rb

+module Geo
+  class RepositoryShardSyncWorker < Geo::BaseSchedulerWorker
+    # We may have many long-running threads, so split them out
+    # into their own queue to make it possible for other jobs to run.
+    sidekiq_options queue: :geo_repository_shard_sync, retry: false
+
+    attr_accessor :shard_name
+
+    def perform(shard_name)
+      @shard_name = shard_name
+
+      return unless Gitlab::Geo::ShardHealthCache.healthy_shard?(shard_name)
+
+      super()
+    end
+
+    private
+
+    def worker_metadata
+      { shard: shard_name }
+    end
+
+    # We need a custom key here since we are running one worker per shard
+    def lease_key
+      @lease_key ||= "#{self.class.name.underscore}:shard:#{shard_name}"
+    end
+
+    def max_capacity
+      healthy_count = Gitlab::Geo::ShardHealthCache.healthy_shard_count
+
+      # If we don't have a count, that means that for some reason
+      # RepositorySyncWorker stopped running/updating the cache. We might
+      # be trying to shut down Geo while this job may still be running.
+      return 0 unless healthy_count.to_i > 0
+
+      capacity_per_shard = current_node.repos_max_capacity / healthy_count
+
+      [1, capacity_per_shard.to_i].max
+    end
+
+    def schedule_job(project_id)
+      job_id = Geo::ProjectSyncWorker.perform_async(project_id, Time.now)
+
+      { id: project_id, job_id: job_id } if job_id
+    end
+
+    def finder
+      @finder ||= ProjectRegistryFinder.new(current_node: current_node)
+    end
+
+    def load_pending_resources
+      resources = find_project_ids_not_synced(batch_size: db_retrieve_batch_size)
+      remaining_capacity = db_retrieve_batch_size - resources.size
+
+      if remaining_capacity.zero?
+        resources
+      else
+        resources + find_project_ids_updated_recently(batch_size: remaining_capacity)
+      end
+    end
+
+    def find_project_ids_not_synced(batch_size:)
+      shard_restriction(finder.find_unsynced_projects(batch_size: batch_size))
+        .reorder(last_repository_updated_at: :desc)
+        .pluck(:id)
+    end
+
+    def find_project_ids_updated_recently(batch_size:)
+      shard_restriction(finder.find_projects_updated_recently(batch_size: batch_size))
+        .order(Gitlab::Database.nulls_first_order(:last_repository_updated_at, :desc))
+        .pluck(:id)
+    end
+
+    def shard_restriction(relation)
+      relation.where(repository_storage: shard_name)
+    end
+  end
+end

app/workers/geo/repository_sync_worker.rb

 module Geo
-  class RepositorySyncWorker < Geo::BaseSchedulerWorker
-    private
+  class RepositorySyncWorker
+    include ApplicationWorker
+    include CronjobQueue
 
-    def max_capacity
-      current_node.repos_max_capacity
-    end
+    def perform
+      return unless Gitlab::Geo.geo_database_configured?
+      return unless Gitlab::Geo.secondary?
 
-    def schedule_job(project_id)
-      job_id = Geo::ProjectSyncWorker.perform_async(project_id, Time.now)
+      shards = healthy_shards
 
-      { id: project_id, job_id: job_id } if job_id
-    end
+      Gitlab::Geo::ShardHealthCache.update(shards)
 
-    def finder
-      @finder ||= ProjectRegistryFinder.new(current_node: current_node)
+      shards.each do |shard_name|
+        RepositoryShardSyncWorker.perform_async(shard_name)
       end
-
-    def load_pending_resources
-      resources = find_project_ids_not_synced(batch_size: db_retrieve_batch_size)
-      remaining_capacity = db_retrieve_batch_size - resources.size
-
-      if remaining_capacity.zero?
-        resources
-      else
-        resources + find_project_ids_updated_recently(batch_size: remaining_capacity)
-      end
-    end
-
-    def find_project_ids_not_synced(batch_size:)
-      healthy_shards_restriction(finder.find_unsynced_projects(batch_size: batch_size))
-        .reorder(last_repository_updated_at: :desc)
-        .pluck(:id)
-    end
-
-    def find_project_ids_updated_recently(batch_size:)
-      healthy_shards_restriction(finder.find_projects_updated_recently(batch_size: batch_size))
-        .order(Gitlab::Database.nulls_first_order(:last_repository_updated_at, :desc))
-        .pluck(:id)
-    end
-
-    def healthy_shards_restriction(relation)
-      configured = Gitlab.config.repositories.storages.keys
-      referenced = Project.distinct(:repository_storage).pluck(:repository_storage)
-      healthy = healthy_shards
-
-      known = configured | referenced
-      return relation if (known - healthy).empty?
-
-      relation.where(repository_storage: healthy)
     end
 
     def healthy_shards

changelogs/unreleased-ee/sh-geo-shard-specific-sync.yml

+---
+title: 'Geo: Increase parallelism by scheduling project repositories by shard'
+merge_request: 3606
+author:
+type: added

config/sidekiq_queues.yml

@@ -77,6 +77,7 @@
   - [admin_emails, 1]
   - [geo_project_sync, 1]
   - [geo_file_download, 1]
+  - [geo_repository_shard_sync, 1]
   - [elastic_batch_project_indexer, 1]
   - [elastic_indexer, 1]
   - [elastic_commit_indexer, 1]

lib/gitlab/geo/shard_health_cache.rb

+module Gitlab
+  module Geo
+    class ShardHealthCache
+      HEALTHY_SHARDS_KEY = 'gitlab-geo-healthy-shards'.freeze
+      HEALTHY_SHARDS_TIMEOUT = 300
+
+      # Clears the Redis set storing the list of healthy shards
+      def self.clear
+        Gitlab::Redis::Cache.with { |redis| redis.del(HEALTHY_SHARDS_KEY) }
+      end
+
+      # Updates the list of healthy shards using a Redis set
+      #
+      # shards - An array of shard names to store
+      def self.update(shards)
+        Gitlab::Redis::Cache.with do |redis|
+          redis.multi do |m|
+            m.del(HEALTHY_SHARDS_KEY)
+            shards.each { |shard_name| m.sadd(HEALTHY_SHARDS_KEY, shard_name) }
+            m.expire(HEALTHY_SHARDS_KEY, HEALTHY_SHARDS_TIMEOUT)
+          end
+        end
+      end
+
+      # Returns an array of strings of healthy shards
+      def self.cached_healthy_shards
+        Gitlab::Redis::Cache.with { |redis| redis.smembers(HEALTHY_SHARDS_KEY) }
+      end
+
+      # Checks whether the given shard name is in the list of healthy shards.
+      #
+      # shard_name - The string to check
+      def self.healthy_shard?(shard_name)
+        Gitlab::Redis::Cache.with { |redis| redis.sismember(HEALTHY_SHARDS_KEY, shard_name) }
+      end
+
+      # Returns the number of healthy shards in the Redis set
+      def self.healthy_shard_count
+        Gitlab::Redis::Cache.with { |redis| redis.scard(HEALTHY_SHARDS_KEY) }
+      end
+    end
+  end
+end

spec/lib/gitlab/geo/shard_health_cache_spec.rb

+require 'spec_helper'
+
+describe Gitlab::Geo::ShardHealthCache, :clean_gitlab_redis_cache do
+  let(:shards) { %w(foo bar) }
+
+  before do
+    described_class.update(shards)
+  end
+
+  describe '.clear' do
+    it 'leaves no shards around' do
+      described_class.clear
+
+      expect(described_class.healthy_shard_count).to eq(0)
+    end
+  end
+
+  describe '.update' do
+    it 'returns the healthy shards' do
+      expect(described_class.cached_healthy_shards).to match_array(shards)
+    end
+
+    it 'replaces the existing set' do
+      new_set = %w(test me more)
+      described_class.update(new_set)
+
+      expect(described_class.cached_healthy_shards).to match_array(new_set)
+    end
+  end
+
+  describe '.healthy_shard_count' do
+    it 'returns the healthy shard count' do
+      expect(described_class.healthy_shard_count).to eq(2)
+    end
+
+    it 'returns 0 if no shards are available' do
+      described_class.update([])
+
+      expect(described_class.healthy_shard_count).to eq(0)
+    end
+  end
+
+  describe '.healthy_shard?' do
+    it 'returns true for a healthy shard' do
+      expect(described_class.healthy_shard?('foo')).to be_truthy
+    end
+
+    it 'returns false for an unknown shard' do
+      expect(described_class.healthy_shard?('unknown')).to be_falsey
+    end
+  end
+end

spec/workers/geo/repository_shard_sync_worker_spec.rb

+require 'spec_helper'
+
+# Disable transactions via :truncate method because a foreign table
+# can't see changes inside a transaction of a different connection.
+describe Geo::RepositoryShardSyncWorker, :geo, :truncate, :clean_gitlab_redis_cache do
+  include ::EE::GeoHelpers
+
+  let!(:primary) { create(:geo_node, :primary) }
+  let!(:secondary) { create(:geo_node) }
+  let!(:synced_group) { create(:group) }
+  let!(:project_in_synced_group) { create(:project, group: synced_group) }
+  let!(:unsynced_project) { create(:project) }
+  let(:shard_name) { Gitlab.config.repositories.storages.keys.first }
+
+  subject { described_class.new }
+
+  before do
+    stub_current_geo_node(secondary)
+  end
+
+  shared_examples '#perform' do |skip_tests|
+    before do
+      skip('FDW is not configured') if skip_tests
+    end
+
+    before do
+      allow_any_instance_of(Gitlab::ExclusiveLease).to receive(:try_obtain) { true }
+      allow_any_instance_of(Gitlab::ExclusiveLease).to receive(:renew) { true }
+
+      Gitlab::Geo::ShardHealthCache.update([shard_name])
+    end
+
+    it 'performs Geo::ProjectSyncWorker for each project' do
+      expect(Geo::ProjectSyncWorker).to receive(:perform_async).twice.and_return(spy)
+
+      subject.perform(shard_name)
+    end
+
+    it 'performs Geo::ProjectSyncWorker for projects where last attempt to sync failed' do
+      create(:geo_project_registry, :sync_failed, project: project_in_synced_group)
+      create(:geo_project_registry, :synced, project: unsynced_project)
+
+      expect(Geo::ProjectSyncWorker).to receive(:perform_async).once.and_return(spy)
+
+      subject.perform(shard_name)
+    end
+
+    it 'does not perform Geo::ProjectSyncWorker when shard becomes unhealthy' do
+      Gitlab::Geo::ShardHealthCache.update([])
+
+      expect(Geo::ProjectSyncWorker).not_to receive(:perform_async)
+
+      subject.perform(shard_name)
+    end
+
+    it 'performs Geo::ProjectSyncWorker for synced projects updated recently' do
+      create(:geo_project_registry, :synced, :repository_dirty, project: project_in_synced_group)
+      create(:geo_project_registry, :synced, project: unsynced_project)
+      create(:geo_project_registry, :synced, :wiki_dirty)
+
+      expect(Geo::ProjectSyncWorker).to receive(:perform_async).twice.and_return(spy)
+
+      subject.perform(shard_name)
+    end
+
+    it 'does not perform Geo::ProjectSyncWorker when no geo database is configured' do
+      allow(Gitlab::Geo).to receive(:geo_database_configured?) { false }
+
+      expect(Geo::ProjectSyncWorker).not_to receive(:perform_async)
+
+      subject.perform(shard_name)
+
+      # We need to unstub here or the DatabaseCleaner will have issues since it
+      # will appear as though the tracking DB were not available
+      allow(Gitlab::Geo).to receive(:geo_database_configured?).and_call_original
+    end
+
+    it 'does not perform Geo::ProjectSyncWorker when not running on a secondary' do
+      allow(Gitlab::Geo).to receive(:secondary?) { false }
+
+      expect(Geo::ProjectSyncWorker).not_to receive(:perform_async)
+
+      subject.perform(shard_name)
+    end
+
+    it 'does not perform Geo::ProjectSyncWorker when node is disabled' do
+      allow_any_instance_of(GeoNode).to receive(:enabled?) { false }
+
+      expect(Geo::ProjectSyncWorker).not_to receive(:perform_async)
+
+      subject.perform(shard_name)
+    end
+
+    context 'multiple shards' do
+      it 'uses two loops to schedule jobs' do
+        expect(subject).to receive(:schedule_jobs).twice.and_call_original
+
+        Gitlab::Geo::ShardHealthCache.update([shard_name, 'shard2', 'shard3', 'shard4', 'shard5'])
+        secondary.update!(repos_max_capacity: 5)
+
+        subject.perform(shard_name)
+      end
+    end
+
+    context 'when node has namespace restrictions' do
+      before do
+        secondary.update_attribute(:namespaces, [synced_group])
+      end
+
+      it 'does not perform Geo::ProjectSyncWorker for projects that do not belong to selected namespaces to replicate' do
+        expect(Geo::ProjectSyncWorker).to receive(:perform_async)
+          .with(project_in_synced_group.id, within(1.minute).of(Time.now))
+          .once
+          .and_return(spy)
+
+        subject.perform(shard_name)
+      end
+
+      it 'does not perform Geo::ProjectSyncWorker for synced projects updated recently that do not belong to selected namespaces to replicate' do
+        create(:geo_project_registry, :synced, :repository_dirty, project: project_in_synced_group)
+        create(:geo_project_registry, :synced, :repository_dirty, project: unsynced_project)
+
+        expect(Geo::ProjectSyncWorker).to receive(:perform_async)
+          .with(project_in_synced_group.id, within(1.minute).of(Time.now))
+          .once
+          .and_return(spy)
+
+        subject.perform(shard_name)
+      end
+    end
+
+    context 'all repositories fail' do
+      let!(:project_list) { create_list(:project, 4, :random_last_repository_updated_at) }
+
+      before do
+        # Neither of these are needed for this spec
+        unsynced_project.destroy
+        project_in_synced_group.destroy
+
+        allow_any_instance_of(described_class).to receive(:db_retrieve_batch_size).and_return(2) # Must be >1 because of the Geo::BaseSchedulerWorker#interleave
+        secondary.update!(repos_max_capacity: 3) # Must be more than db_retrieve_batch_size
+        allow_any_instance_of(Project).to receive(:ensure_repository).and_raise(Gitlab::Shell::Error.new('foo'))
+        allow_any_instance_of(Geo::ProjectRegistry).to receive(:wiki_sync_due?).and_return(false)
+        allow_any_instance_of(Geo::RepositorySyncService).to receive(:expire_repository_caches)
+      end
+
+      it 'tries to sync every project' do
+        project_list.each do |project|
+          expect(Geo::ProjectSyncWorker)
+            .to receive(:perform_async)
+              .with(project.id, anything)
+              .at_least(:once)
+              .and_call_original
+        end
+
+        3.times do
+          Sidekiq::Testing.inline! { subject.perform(shard_name) }
+        end
+      end
+    end
+
+    context 'additional shards' do
+      it 'skips backfill for projects on unhealthy shards' do
+        missing_not_synced = create(:project, group: synced_group)
+        missing_not_synced.update_column(:repository_storage, 'unknown')
+        missing_dirty = create(:project, group: synced_group)
+        missing_dirty.update_column(:repository_storage, 'unknown')
+
+        create(:geo_project_registry, :synced, :repository_dirty, project: missing_dirty)
+
+        expect(Geo::ProjectSyncWorker).to receive(:perform_async).with(project_in_synced_group.id, anything)
+        expect(Geo::ProjectSyncWorker).not_to receive(:perform_async).with(missing_not_synced.id, anything)
+        expect(Geo::ProjectSyncWorker).not_to receive(:perform_async).with(missing_dirty.id, anything)
+
+        Sidekiq::Testing.inline! { subject.perform(shard_name) }
+      end
+    end
+  end
+
+  describe 'when PostgreSQL FDW is available', :geo do
+    # Skip if FDW isn't activated on this database
+    it_behaves_like '#perform', Gitlab::Database.postgresql? && !Gitlab::Geo.fdw?
+  end
+
+  describe 'when PostgreSQL FDW is not enabled', :geo do
+    before do
+      allow(Gitlab::Geo).to receive(:fdw?).and_return(false)
+    end
+
+    it_behaves_like '#perform', false
+  end
+end

spec/workers/geo/repository_sync_worker_spec.rb

 require 'spec_helper'
 
-# Disable transactions via :truncate method because a foreign table
-# can't see changes inside a transaction of a different connection.
-describe Geo::RepositorySyncWorker, :geo, :truncate do
+describe Geo::RepositorySyncWorker, :geo, :clean_gitlab_redis_cache do
   include ::EE::GeoHelpers
 
   let!(:primary) { create(:geo_node, :primary) }
@@ -17,128 +15,9 @@ describe Geo::RepositorySyncWorker, :geo, :truncate do
     stub_current_geo_node(secondary)
   end
 
-  shared_examples '#perform' do |skip_tests|
-    before do
-      skip('FDW is not configured') if skip_tests
-    end
-
-    before do
-      allow_any_instance_of(Gitlab::ExclusiveLease).to receive(:try_obtain) { true }
-      allow_any_instance_of(Gitlab::ExclusiveLease).to receive(:renew) { true }
-    end
-
-    it 'performs Geo::ProjectSyncWorker for each project' do
-      expect(Geo::ProjectSyncWorker).to receive(:perform_async).twice.and_return(spy)
-
-      subject.perform
-    end
-
-    it 'performs Geo::ProjectSyncWorker for projects where last attempt to sync failed' do
-      create(:geo_project_registry, :sync_failed, project: project_in_synced_group)
-      create(:geo_project_registry, :synced, project: unsynced_project)
-
-      expect(Geo::ProjectSyncWorker).to receive(:perform_async).once.and_return(spy)
-
-      subject.perform
-    end
-
-    it 'performs Geo::ProjectSyncWorker for synced projects updated recently' do
-      create(:geo_project_registry, :synced, :repository_dirty, project: project_in_synced_group)
-      create(:geo_project_registry, :synced, project: unsynced_project)
-      create(:geo_project_registry, :synced, :wiki_dirty)
-
-      expect(Geo::ProjectSyncWorker).to receive(:perform_async).twice.and_return(spy)
-
-      subject.perform
-    end
-
-    it 'does not perform Geo::ProjectSyncWorker when no geo database is configured' do
-      allow(Gitlab::Geo).to receive(:geo_database_configured?) { false }
-
-      expect(Geo::ProjectSyncWorker).not_to receive(:perform_async)
-
-      subject.perform
-
-      # We need to unstub here or the DatabaseCleaner will have issues since it
-      # will appear as though the tracking DB were not available
-      allow(Gitlab::Geo).to receive(:geo_database_configured?).and_call_original
-    end
-
-    it 'does not perform Geo::ProjectSyncWorker when not running on a secondary' do
-      allow(Gitlab::Geo).to receive(:secondary?) { false }
-
-      expect(Geo::ProjectSyncWorker).not_to receive(:perform_async)
-
-      subject.perform
-    end
-
-    it 'does not perform Geo::ProjectSyncWorker when node is disabled' do
-      allow_any_instance_of(GeoNode).to receive(:enabled?) { false }
-
-      expect(Geo::ProjectSyncWorker).not_to receive(:perform_async)
-
-      subject.perform
-    end
-
-    context 'when node has namespace restrictions' do
-      before do
-        secondary.update_attribute(:namespaces, [synced_group])
-      end
-
-      it 'does not perform Geo::ProjectSyncWorker for projects that do not belong to selected namespaces to replicate' do
-        expect(Geo::ProjectSyncWorker).to receive(:perform_async)
-          .with(project_in_synced_group.id, within(1.minute).of(Time.now))
-          .once
-          .and_return(spy)
-
-        subject.perform
-      end
-
-      it 'does not perform Geo::ProjectSyncWorker for synced projects updated recently that do not belong to selected namespaces to replicate' do
-        create(:geo_project_registry, :synced, :repository_dirty, project: project_in_synced_group)
-        create(:geo_project_registry, :synced, :repository_dirty, project: unsynced_project)
-
-        expect(Geo::ProjectSyncWorker).to receive(:perform_async)
-          .with(project_in_synced_group.id, within(1.minute).of(Time.now))
-          .once
-          .and_return(spy)
-
-        subject.perform
-      end
-    end
-
-    context 'all repositories fail' do
-      let!(:project_list) { create_list(:project, 4, :random_last_repository_updated_at) }
-
-      before do
-        # Neither of these are needed for this spec
-        unsynced_project.destroy
-        project_in_synced_group.destroy
-
-        allow_any_instance_of(described_class).to receive(:db_retrieve_batch_size).and_return(2) # Must be >1 because of the Geo::BaseSchedulerWorker#interleave
-        secondary.update!(repos_max_capacity: 3) # Must be more than db_retrieve_batch_size
-        allow_any_instance_of(Project).to receive(:ensure_repository).and_raise(Gitlab::Shell::Error.new('foo'))
-        allow_any_instance_of(Geo::ProjectRegistry).to receive(:wiki_sync_due?).and_return(false)
-        allow_any_instance_of(Geo::RepositorySyncService).to receive(:expire_repository_caches)
-      end
-
-      it 'tries to sync every project' do
-        project_list.each do |project|
-          expect(Geo::ProjectSyncWorker)
-            .to receive(:perform_async)
-              .with(project.id, anything)
-              .at_least(:once)
-              .and_call_original
-        end
-
-        3.times do
-          Sidekiq::Testing.inline! { subject.perform }
-        end
-      end
-    end
-
-    context 'unhealthy shards' do
-      it 'skips backfill for repositories on unhealthy shards' do
+  describe '#perform' do
+    context 'additional shards' do
+      it 'skips backfill for repositories on other shards' do
         unhealthy_not_synced = create(:project, group: synced_group, repository_storage: 'broken')
         unhealthy_dirty = create(:project, group: synced_group, repository_storage: 'broken')
 
@@ -147,9 +26,8 @@ describe Geo::RepositorySyncWorker, :geo, :truncate do
         # Make the shard unhealthy
         FileUtils.rm_rf(unhealthy_not_synced.repository_storage_path)
 
-        expect(Geo::ProjectSyncWorker).to receive(:perform_async).with(project_in_synced_group.id, anything)
-        expect(Geo::ProjectSyncWorker).not_to receive(:perform_async).with(unhealthy_not_synced.id, anything)
-        expect(Geo::ProjectSyncWorker).not_to receive(:perform_async).with(unhealthy_dirty.id, anything)
+        expect(Geo::RepositoryShardSyncWorker).to receive(:perform_async).with(project_in_synced_group.repository.storage)
+        expect(Geo::RepositoryShardSyncWorker).not_to receive(:perform_async).with('broken')
 
         Sidekiq::Testing.inline! { subject.perform }
       end
@@ -165,25 +43,11 @@ describe Geo::RepositorySyncWorker, :geo, :truncate do
         # hide the 'broken' storage for this spec
         stub_storage_settings({})
 
-        expect(Geo::ProjectSyncWorker).to receive(:perform_async).with(project_in_synced_group.id, anything)
-        expect(Geo::ProjectSyncWorker).not_to receive(:perform_async).with(missing_not_synced.id, anything)
-        expect(Geo::ProjectSyncWorker).not_to receive(:perform_async).with(missing_dirty.id, anything)
+        expect(Geo::RepositoryShardSyncWorker).to receive(:perform_async).with(project_in_synced_group.repository.storage)
+        expect(Geo::RepositoryShardSyncWorker).not_to receive(:perform_async).with('unknown')
 
         Sidekiq::Testing.inline! { subject.perform }
       end
     end
   end
-
-  describe 'when PostgreSQL FDW is available', :geo do
-    # Skip if FDW isn't activated on this database
-    it_behaves_like '#perform', Gitlab::Database.postgresql? && !Gitlab::Geo.fdw?
-  end
-
-  describe 'when PostgreSQL FDW is not enabled', :geo do
-    before do
-      allow(Gitlab::Geo).to receive(:fdw?).and_return(false)
-    end
-
-    it_behaves_like '#perform', false
-  end
 end