fix(lcm): Decrease default thread count using for lcm bricks

lib/gooddata/lcm/actions/import_object_collections.rb

@@ -20,6 +20,9 @@ class ImportObjectCollections < BaseAction
 
         description 'Synchronization Info'
         param :synchronize, array_of(instance_of(Type::SynchronizationInfoType)), required: true, generated: true
+
+        description 'Number Of Threads'
+        param :number_of_threads, instance_of(Type::StringType), required: false, default: '10'
       end
 
       class << self
@@ -28,15 +31,16 @@ def call(params)
 
           client = params.gdc_gd_client
           development_client = params.development_client
+          number_of_threads = Integer(params.number_of_threads || '10')
 
-          params.synchronize.peach do |info|
+          params.synchronize.peach(number_of_threads) do |info|
             from = info.from
             to_projects = info.to
             transfer_uris = info.transfer_uris
 
             from_project = development_client.projects(from) || fail("Invalid 'from' project specified - '#{from}'")
 
-            to_projects.peach do |entry|
+            to_projects.peach(number_of_threads) do |entry|
               pid = entry[:pid]
               to_project = client.projects(pid) || fail("Invalid 'to' project specified - '#{pid}'")
 

lib/gooddata/lcm/actions/synchronize_dataset_mappings.rb

@@ -33,6 +33,9 @@ class SynchronizeDataSetMapping < BaseAction
 
         description 'Sync failed list'
         param :sync_failed_list, instance_of(Type::HashType), required: false
+
+        description 'Number Of Threads'
+        param :number_of_threads, instance_of(Type::StringType), required: false, default: '10'
       end
 
       RESULT_HEADER = %i[from to count status]
@@ -45,8 +48,9 @@ def call(params)
 
           client = params.gdc_gd_client
           development_client = params.development_client
+          number_of_threads = Integer(params.number_of_threads || '10')
 
-          params.synchronize.peach do |info|
+          params.synchronize.peach(number_of_threads) do |info|
             from_project = info.from
             to_projects = info.to
 
@@ -60,7 +64,7 @@ def call(params)
             if dataset_mapping&.dig('datasetMappings', 'items').nil? || dataset_mapping['datasetMappings']['items'].empty?
               params.gdc_logger.info "Project: '#{from.title}', PID: '#{from.pid}' has no model mapping, skip synchronizing model mapping."
             else
-              to_projects.peach do |to|
+              to_projects.peach(number_of_threads) do |to|
                 pid = to[:pid]
                 next if sync_failed_project(pid, params)
 

lib/gooddata/lcm/actions/synchronize_user_filters.rb

@@ -74,6 +74,9 @@ class SynchronizeUserFilters < BaseAction
 
         description 'Makes the brick run without altering user filters'
         param :dry_run, instance_of(Type::StringType), required: false, default: false
+
+        description 'Number Of Threads'
+        param :number_of_threads, instance_of(Type::StringType), required: false, default: '10'
       end
 
       class << self
@@ -104,6 +107,7 @@ def call(params)
           symbolized_config = GoodData::Helpers.symbolize_keys(symbolized_config)
           symbolized_config[:labels] = symbolized_config[:labels].map { |l| GoodData::Helpers.symbolize_keys(l) }
           multiple_projects_column = params.multiple_projects_column
+          number_of_threads = Integer(params.number_of_threads || '10')
 
           mode = params.sync_mode
           unless MODES.include?(mode)
@@ -196,7 +200,7 @@ def call(params)
 
             unless run_params[:do_not_touch_filters_that_are_not_mentioned]
               to_be_deleted_clients = UserBricksHelper.non_working_clients(domain_clients, working_client_ids)
-              to_be_deleted_clients.peach do |c|
+              to_be_deleted_clients.peach(number_of_threads) do |c|
                 begin
                   current_project = c.project
                   users = users_by_project[c.client_id]

lib/gooddata/lcm/lcm2.rb

@@ -295,6 +295,10 @@ def print_actions_result(actions, results)
       end
 
       def perform(mode, params = {})
+        # Default setting for $pmap_default_thread_count = 20 in gooddata.rb file. We are going to decrease default
+        # number of threads count to 10 for LCM bricks only
+        $pmap_default_thread_count = 10 # rubocop:disable GlobalVars
+
         params = convert_params(params)
 
         GoodData.gd_logger.brick = mode

lib/gooddata/models/user_filters/user_filter_builder.rb

@@ -514,7 +514,7 @@ def self.execute_mufs(user_filters, options = {})
       if to_create.empty?
         create_results = []
       else
-        create_results = to_create.each_slice(100).flat_map do |batch|
+        create_results = to_create.each_slice(50).flat_map do |batch|
           batch.pmapcat do |related_uri, group|
             group.each(&:save)
             res = client.get("/gdc/md/#{project.pid}/userfilters?users=#{related_uri}")