Add support for more timeouts to Nexus operations

.github/workflows/ci.yml

@@ -101,6 +101,7 @@ jobs:
           TEMPORAL_CLOUD_OPS_TEST_NAMESPACE: ${{ vars.TEMPORAL_CLIENT_NAMESPACE }}
           TEMPORAL_CLOUD_OPS_TEST_API_KEY: ${{ secrets.TEMPORAL_CLIENT_CLOUD_API_KEY }}
           TEMPORAL_CLOUD_OPS_TEST_API_VERSION: 2024-05-13-00
+
         run: bundle exec rake TESTOPTS="--verbose"
 
       - name: Deploy docs

temporalio/lib/temporalio/internal/worker/workflow_instance/nexus_client.rb

@@ -17,7 +17,8 @@ def initialize(endpoint:, service:, outbound:) # rubocop:disable Lint/MissingSup
             @outbound = outbound
           end
 
-          def start_operation(operation, arg, schedule_to_close_timeout: nil, cancellation_type: nil, summary: nil,
+          def start_operation(operation, arg, schedule_to_close_timeout: nil, schedule_to_start_timeout: nil,
+                              start_to_close_timeout: nil, cancellation_type: nil, summary: nil,
                               cancellation: Workflow.cancellation, arg_hint: nil, result_hint: nil)
             @outbound.start_nexus_operation(
               Temporalio::Worker::Interceptor::Workflow::StartNexusOperationInput.new(
@@ -26,6 +27,8 @@ def start_operation(operation, arg, schedule_to_close_timeout: nil, cancellation
                 operation: operation.to_s,
                 arg:,
                 schedule_to_close_timeout:,
+                schedule_to_start_timeout:,
+                start_to_close_timeout:,
                 cancellation_type:,
                 summary:,
                 cancellation:,

temporalio/lib/temporalio/internal/worker/workflow_instance/outbound_implementation.rb

@@ -446,6 +446,8 @@ def start_nexus_operation(input)
                   operation: input.operation,
                   input: @instance.payload_converter.to_payload(input.arg, hint: input.arg_hint),
                   schedule_to_close_timeout: ProtoUtils.seconds_to_duration(input.schedule_to_close_timeout),
+                  schedule_to_start_timeout: ProtoUtils.seconds_to_duration(input.schedule_to_start_timeout),
+                  start_to_close_timeout: ProtoUtils.seconds_to_duration(input.start_to_close_timeout),
                   nexus_header: input.headers,
                   cancellation_type: input.cancellation_type
                 ),

temporalio/lib/temporalio/worker/interceptor.rb

@@ -309,6 +309,8 @@ def handle_update(input)
           :operation,
           :arg,
           :schedule_to_close_timeout,
+          :schedule_to_start_timeout,
+          :start_to_close_timeout,
           :cancellation_type,
           :summary,
           :cancellation,

temporalio/lib/temporalio/workflow/nexus_client.rb

@@ -28,6 +28,10 @@ def service
       # @param operation [Symbol, String] Operation name.
       # @param arg [Object] Argument for the operation.
       # @param schedule_to_close_timeout [Float, nil] Total timeout for the operation in seconds.
+      # @param schedule_to_start_timeout [Float, nil] Timeout in seconds for the operation to start executing. If the
+      #   operation has not started within this window, a SCHEDULE_TO_START timeout error is raised.
+      # @param start_to_close_timeout [Float, nil] Timeout in seconds for an async operation to complete after it has
+      #   started. If the operation does not complete within this window, a START_TO_CLOSE timeout error is raised.
       # @param cancellation_type [NexusOperationCancellationType] How the operation will react to cancellation.
       # @param summary [String, nil] Optional summary for the operation (appears in UI/CLI).
       # @param cancellation [Cancellation] Cancellation for the operation.
@@ -38,6 +42,8 @@ def start_operation(
         operation,
         arg,
         schedule_to_close_timeout: nil,
+        schedule_to_start_timeout: nil,
+        start_to_close_timeout: nil,
         cancellation_type: NexusOperationCancellationType::WAIT_CANCELLATION_COMPLETED,
         summary: nil,
         cancellation: Workflow.cancellation,
@@ -54,6 +60,10 @@ def start_operation(
       # @param operation [Symbol, String] Operation name.
       # @param arg [Object] Argument for the operation.
       # @param schedule_to_close_timeout [Float, nil] Total timeout for the operation in seconds.
+      # @param schedule_to_start_timeout [Float, nil] Timeout in seconds for the operation to start executing. If the
+      #   operation has not started within this window, a SCHEDULE_TO_START timeout error is raised.
+      # @param start_to_close_timeout [Float, nil] Timeout in seconds for an async operation to complete after it has
+      #   started. If the operation does not complete within this window, a START_TO_CLOSE timeout error is raised.
       # @param cancellation_type [NexusOperationCancellationType] How the operation will react to cancellation.
       # @param summary [String, nil] Optional summary for the operation (appears in UI/CLI).
       # @param cancellation [Cancellation] Cancellation for the operation.
@@ -65,15 +75,17 @@ def execute_operation(
         operation,
         arg,
         schedule_to_close_timeout: nil,
+        schedule_to_start_timeout: nil,
+        start_to_close_timeout: nil,
         cancellation_type: NexusOperationCancellationType::WAIT_CANCELLATION_COMPLETED,
         summary: nil,
         cancellation: Workflow.cancellation,
         arg_hint: nil,
         result_hint: nil
       )
         start_operation(
-          operation, arg, schedule_to_close_timeout:, cancellation_type:, summary:, cancellation:,
-                          arg_hint:, result_hint:
+          operation, arg, schedule_to_close_timeout:, schedule_to_start_timeout:, start_to_close_timeout:,
+                          cancellation_type:, summary:, cancellation:, arg_hint:, result_hint:
         ).result
       end
     end

temporalio/sig/temporalio/worker/interceptor.rbs

@@ -318,6 +318,8 @@ module Temporalio
           attr_reader operation: String
           attr_reader arg: Object?
           attr_reader schedule_to_close_timeout: duration?
+          attr_reader schedule_to_start_timeout: duration?
+          attr_reader start_to_close_timeout: duration?
           attr_reader cancellation_type: Temporalio::Workflow::NexusOperationCancellationType::enum
           attr_reader summary: String?
           attr_reader cancellation: Cancellation
@@ -331,6 +333,8 @@ module Temporalio
             operation: String,
             arg: Object?,
             schedule_to_close_timeout: duration?,
+            schedule_to_start_timeout: duration?,
+            start_to_close_timeout: duration?,
             cancellation_type: Temporalio::Workflow::NexusOperationCancellationType::enum,
             summary: String?,
             cancellation: Cancellation,

temporalio/sig/temporalio/workflow/nexus_client.rbs

@@ -8,6 +8,8 @@ module Temporalio
         Symbol | String operation,
         Object? arg,
         ?schedule_to_close_timeout: duration?,
+        ?schedule_to_start_timeout: duration?,
+        ?start_to_close_timeout: duration?,
         ?cancellation_type: NexusOperationCancellationType::enum,
         ?summary: String?,
         ?cancellation: Cancellation,
@@ -19,6 +21,8 @@ module Temporalio
         Symbol | String operation,
         Object? arg,
         ?schedule_to_close_timeout: duration?,
+        ?schedule_to_start_timeout: duration?,
+        ?start_to_close_timeout: duration?,
         ?cancellation_type: NexusOperationCancellationType::enum,
         ?summary: String?,
         ?cancellation: Cancellation,

temporalio/test/test.rb

@@ -147,6 +147,7 @@ def initialize
       if target_host.empty?
         @server = Temporalio::Testing::WorkflowEnvironment.start_local(
           logger: Logger.new($stdout),
+          dev_server_download_version: 'v1.6.1-server-1.31.0-150.0',
           dev_server_extra_args: [
             # Allow continue as new to be immediate
             '--dynamic-config-value', 'history.workflowIdReuseMinimalInterval="0s"',

temporalio/test/worker_workflow_nexus_test.rb

@@ -426,6 +426,65 @@ def test_nexus_operation_summary_in_history
     end
   end
 
+  # Test schedule_to_start_timeout: operation never picked up, times out before starting
+  class NexusScheduleToStartTimeoutWorkflow < Temporalio::Workflow::Definition
+    def execute(endpoint)
+      client = Temporalio::Workflow.create_nexus_client(endpoint:, service: 'test-service')
+      client.execute_operation(
+        'workflow-operation',
+        { 'action' => 'wait-for-cancel' },
+        schedule_to_start_timeout: 0.1
+      )
+    end
+  end
+
+  def test_nexus_schedule_to_start_timeout
+    # Create a nexus endpoint pointing to a task queue with no worker so no one
+    # picks up the nexus task, triggering a SCHEDULE_TO_START timeout.
+    nexus_task_queue = "tq-#{SecureRandom.uuid}"
+    endpoint_name = "nexus-endpoint-#{nexus_task_queue}"
+    endpoint = env.server.create_nexus_endpoint(name: endpoint_name, task_queue: nexus_task_queue)
+
+    begin
+      err = assert_raises(Temporalio::Error::WorkflowFailedError) do
+        execute_workflow(NexusScheduleToStartTimeoutWorkflow, endpoint_name)
+      end
+
+      assert_instance_of Temporalio::Error::NexusOperationError, err.cause
+      assert_instance_of Temporalio::Error::TimeoutError, err.cause.cause
+      assert_equal Temporalio::Error::TimeoutError::TimeoutType::SCHEDULE_TO_START, err.cause.cause.type
+    ensure
+      env.server.delete_nexus_endpoint(endpoint)
+    end
+  end
+
+  # Test start_to_close_timeout: operation starts (async token returned) but never completes
+  class NexusStartToCloseTimeoutWorkflow < Temporalio::Workflow::Definition
+    def execute(endpoint)
+      client = Temporalio::Workflow.create_nexus_client(endpoint:, service: 'test-service')
+      handle = client.start_operation(
+        'workflow-operation',
+        { 'action' => 'wait-for-cancel' },
+        start_to_close_timeout: 0.1
+      )
+      handle.result
+    end
+  end
+
+  def test_nexus_start_to_close_timeout
+    env.with_kitchen_sink_worker(nexus: true) do |task_queue|
+      endpoint = "nexus-endpoint-#{task_queue}"
+
+      err = assert_raises(Temporalio::Error::WorkflowFailedError) do
+        execute_workflow(NexusStartToCloseTimeoutWorkflow, endpoint)
+      end
+
+      assert_instance_of Temporalio::Error::NexusOperationError, err.cause
+      assert_instance_of Temporalio::Error::TimeoutError, err.cause.cause
+      assert_equal Temporalio::Error::TimeoutError::TimeoutType::START_TO_CLOSE, err.cause.cause.type
+    end
+  end
+
   class NexusOperationTracingWorkflow < Temporalio::Workflow::Definition
     def execute(endpoint)
       client = Temporalio::Workflow.create_nexus_client(endpoint:, service: 'test-service')