Nexus caller timeouts

temporal-sdk/src/main/java/io/temporal/internal/sync/SyncWorkflowContext.java

@@ -799,6 +799,10 @@ public <R> ExecuteNexusOperationOutput<R> executeNexusOperation(
     input.getHeaders().forEach((k, v) -> attributes.putNexusHeader(k.toLowerCase(), v));
     attributes.setScheduleToCloseTimeout(
         ProtobufTimeUtils.toProtoDuration(input.getOptions().getScheduleToCloseTimeout()));
+    attributes.setScheduleToStartTimeout(
+        ProtobufTimeUtils.toProtoDuration(input.getOptions().getScheduleToStartTimeout()));
+    attributes.setStartToCloseTimeout(
+        ProtobufTimeUtils.toProtoDuration(input.getOptions().getStartToCloseTimeout()));
 
     @Nullable
     UserMetadata userMetadata =

temporal-sdk/src/main/java/io/temporal/workflow/NexusOperationOptions.java

@@ -31,6 +31,8 @@ public static NexusOperationOptions getDefaultInstance() {
 
   public static final class Builder {
     private Duration scheduleToCloseTimeout;
+    private Duration scheduleToStartTimeout;
+    private Duration startToCloseTimeout;
     private NexusOperationCancellationType cancellationType;
     private String summary;
 
@@ -46,6 +48,45 @@ public NexusOperationOptions.Builder setScheduleToCloseTimeout(
       return this;
     }
 
+    /**
+     * Sets the schedule to start timeout for the Nexus operation.
+     *
+     * <p>Maximum time to wait for the operation to be started (or completed if synchronous) by the
+     * handler. If the operation is not started within this timeout, it will fail with
+     * TIMEOUT_TYPE_SCHEDULE_TO_START.
+     *
+     * <p>Requires Temporal Server 1.31.0 or later.
+     *
+     * @param scheduleToStartTimeout the schedule to start timeout for the Nexus operation
+     * @return this
+     */
+    @Experimental
+    public NexusOperationOptions.Builder setScheduleToStartTimeout(
+        Duration scheduleToStartTimeout) {
+      this.scheduleToStartTimeout = scheduleToStartTimeout;
+      return this;
+    }
+
+    /**
+     * Sets the start to close timeout for the Nexus operation.
+     *
+     * <p>Maximum time to wait for an asynchronous operation to complete after it has been started.
+     * If the operation does not complete within this timeout after starting, it will fail with
+     * TIMEOUT_TYPE_START_TO_CLOSE.
+     *
+     * <p>Only applies to asynchronous operations. Synchronous operations ignore this timeout.
+     *
+     * <p>Requires Temporal Server 1.31.0 or later.
+     *
+     * @param startToCloseTimeout the start to close timeout for the Nexus operation
+     * @return this
+     */
+    @Experimental
+    public NexusOperationOptions.Builder setStartToCloseTimeout(Duration startToCloseTimeout) {
+      this.startToCloseTimeout = startToCloseTimeout;
+      return this;
+    }
+
     /**
      * Sets the cancellation type for the Nexus operation. Defaults to WAIT_COMPLETED.
      *
@@ -78,12 +119,19 @@ private Builder(NexusOperationOptions options) {
         return;
       }
       this.scheduleToCloseTimeout = options.getScheduleToCloseTimeout();
+      this.scheduleToStartTimeout = options.getScheduleToStartTimeout();
+      this.startToCloseTimeout = options.getStartToCloseTimeout();
       this.cancellationType = options.getCancellationType();
       this.summary = options.getSummary();
     }
 
     public NexusOperationOptions build() {
-      return new NexusOperationOptions(scheduleToCloseTimeout, cancellationType, summary);
+      return new NexusOperationOptions(
+          scheduleToCloseTimeout,
+          scheduleToStartTimeout,
+          startToCloseTimeout,
+          cancellationType,
+          summary);
     }
 
     public NexusOperationOptions.Builder mergeNexusOperationOptions(
@@ -95,6 +143,14 @@ public NexusOperationOptions.Builder mergeNexusOperationOptions(
           (override.scheduleToCloseTimeout == null)
               ? this.scheduleToCloseTimeout
               : override.scheduleToCloseTimeout;
+      this.scheduleToStartTimeout =
+          (override.scheduleToStartTimeout == null)
+              ? this.scheduleToStartTimeout
+              : override.scheduleToStartTimeout;
+      this.startToCloseTimeout =
+          (override.startToCloseTimeout == null)
+              ? this.startToCloseTimeout
+              : override.startToCloseTimeout;
       this.cancellationType =
           (override.cancellationType == null) ? this.cancellationType : override.cancellationType;
       this.summary = (override.summary == null) ? this.summary : override.summary;
@@ -104,9 +160,13 @@ public NexusOperationOptions.Builder mergeNexusOperationOptions(
 
   private NexusOperationOptions(
       Duration scheduleToCloseTimeout,
+      Duration scheduleToStartTimeout,
+      Duration startToCloseTimeout,
       NexusOperationCancellationType cancellationType,
       String summary) {
     this.scheduleToCloseTimeout = scheduleToCloseTimeout;
+    this.scheduleToStartTimeout = scheduleToStartTimeout;
+    this.startToCloseTimeout = startToCloseTimeout;
     this.cancellationType = cancellationType;
     this.summary = summary;
   }
@@ -116,13 +176,25 @@ public NexusOperationOptions.Builder toBuilder() {
   }
 
   private final Duration scheduleToCloseTimeout;
+  private final Duration scheduleToStartTimeout;
+  private final Duration startToCloseTimeout;
   private final NexusOperationCancellationType cancellationType;
   private final String summary;
 
   public Duration getScheduleToCloseTimeout() {
     return scheduleToCloseTimeout;
   }
 
+  @Experimental
+  public Duration getScheduleToStartTimeout() {
+    return scheduleToStartTimeout;
+  }
+
+  @Experimental
+  public Duration getStartToCloseTimeout() {
+    return startToCloseTimeout;
+  }
+
   public NexusOperationCancellationType getCancellationType() {
     return cancellationType;
   }
@@ -138,20 +210,31 @@ public boolean equals(Object o) {
     if (o == null || getClass() != o.getClass()) return false;
     NexusOperationOptions that = (NexusOperationOptions) o;
     return Objects.equals(scheduleToCloseTimeout, that.scheduleToCloseTimeout)
+        && Objects.equals(scheduleToStartTimeout, that.scheduleToStartTimeout)
+        && Objects.equals(startToCloseTimeout, that.startToCloseTimeout)
         && Objects.equals(cancellationType, that.cancellationType)
         && Objects.equals(summary, that.summary);
   }
 
   @Override
   public int hashCode() {
-    return Objects.hash(scheduleToCloseTimeout, cancellationType, summary);
+    return Objects.hash(
+        scheduleToCloseTimeout,
+        scheduleToStartTimeout,
+        startToCloseTimeout,
+        cancellationType,
+        summary);
   }
 
   @Override
   public String toString() {
     return "NexusOperationOptions{"
         + "scheduleToCloseTimeout="
         + scheduleToCloseTimeout
+        + ", scheduleToStartTimeout="
+        + scheduleToStartTimeout
+        + ", startToCloseTimeout="
+        + startToCloseTimeout
         + ", cancellationType="
         + cancellationType
         + ", summary='"

temporal-sdk/src/test/java/io/temporal/workflow/updateTest/UpdateWithStartTest.java

@@ -645,6 +645,7 @@ public void failWhenUpdateNamesDoNotMatch() {
     }
   }
 
+  @SuppressWarnings("deprecation") // Backwards compatibility for WORKFLOW_ID_REUSE_POLICY_TERMINATE_IF_RUNNING
   @Test
   public void failServerSideWhenStartIsInvalid() {
     WorkflowClient workflowClient = testWorkflowRule.getWorkflowClient();

temporal-test-server/src/main/java/io/temporal/internal/testservice/StateMachines.java

@@ -660,6 +660,29 @@ private static void scheduleNexusOperation(
             : Timestamp.getDefaultInstance();
     TestServiceRetryState retryState = new TestServiceRetryState(data.retryPolicy, expirationTime);
 
+    // Trim secondary timeouts to the primary timeout (scheduleToClose).
+    java.time.Duration scheduleToCloseTimeout =
+        ProtobufTimeUtils.toJavaDuration(attr.getScheduleToCloseTimeout());
+    java.time.Duration scheduleToStartTimeout =
+        ProtobufTimeUtils.toJavaDuration(attr.getScheduleToStartTimeout());
+    java.time.Duration startToCloseTimeout =
+        ProtobufTimeUtils.toJavaDuration(attr.getStartToCloseTimeout());
+
+    com.google.protobuf.Duration cappedScheduleToStartTimeout = attr.getScheduleToStartTimeout();
+    com.google.protobuf.Duration cappedStartToCloseTimeout = attr.getStartToCloseTimeout();
+
+    if (!scheduleToCloseTimeout.isZero()
+        && !scheduleToStartTimeout.isZero()
+        && scheduleToStartTimeout.compareTo(scheduleToCloseTimeout) > 0) {
+      cappedScheduleToStartTimeout = attr.getScheduleToCloseTimeout();
+    }
+
+    if (!scheduleToCloseTimeout.isZero()
+        && !startToCloseTimeout.isZero()
+        && startToCloseTimeout.compareTo(scheduleToCloseTimeout) > 0) {
+      cappedStartToCloseTimeout = attr.getScheduleToCloseTimeout();
+    }
+
     NexusOperationScheduledEventAttributes.Builder a =
         NexusOperationScheduledEventAttributes.newBuilder()
             .setEndpoint(attr.getEndpoint())
@@ -668,6 +691,8 @@ private static void scheduleNexusOperation(
             .setOperation(attr.getOperation())
             .setInput(attr.getInput())
             .setScheduleToCloseTimeout(attr.getScheduleToCloseTimeout())
+            .setScheduleToStartTimeout(cappedScheduleToStartTimeout)
+            .setStartToCloseTimeout(cappedStartToCloseTimeout)
             .putAllNexusHeader(attr.getNexusHeaderMap())
             .setRequestId(UUID.randomUUID().toString())
             .setWorkflowTaskCompletedEventId(workflowTaskCompletedId);
@@ -704,9 +729,6 @@ private static void scheduleNexusOperation(
                 io.temporal.api.nexus.v1.Request.newBuilder()
                     .setScheduledTime(ctx.currentTime())
                     .putAllHeader(attr.getNexusHeaderMap())
-                    .putHeader(
-                        io.nexusrpc.Header.OPERATION_TIMEOUT.toLowerCase(),
-                        attr.getScheduleToCloseTimeout().toString())
                     .setStartOperation(
                         StartOperationRequest.newBuilder()
                             .setService(attr.getService())
@@ -778,11 +800,27 @@ private static void completeNexusOperation(
 
   private static void timeoutNexusOperation(
       RequestContext ctx, NexusOperationData data, TimeoutType timeoutType, long notUsed) {
-    if (timeoutType != TimeoutType.TIMEOUT_TYPE_SCHEDULE_TO_CLOSE) {
+    if (timeoutType != TimeoutType.TIMEOUT_TYPE_SCHEDULE_TO_CLOSE
+        && timeoutType != TimeoutType.TIMEOUT_TYPE_SCHEDULE_TO_START
+        && timeoutType != TimeoutType.TIMEOUT_TYPE_START_TO_CLOSE) {
       throw new IllegalArgumentException(
           "Timeout type not supported for Nexus operations: " + timeoutType);
     }
 
+    String timeoutMessage;
+    switch (timeoutType) {
+      case TIMEOUT_TYPE_SCHEDULE_TO_START:
+        timeoutMessage = "operation timed out before starting";
+        break;
+      case TIMEOUT_TYPE_START_TO_CLOSE:
+        timeoutMessage = "operation timed out after starting";
+        break;
+      case TIMEOUT_TYPE_SCHEDULE_TO_CLOSE:
+      default:
+        timeoutMessage = "operation timed out";
+        break;
+    }
+
     Failure failure =
         Failure.newBuilder()
             .setMessage("nexus operation completed unsuccessfully")
@@ -795,7 +833,7 @@ private static void timeoutNexusOperation(
                     .setScheduledEventId(data.scheduledEventId))
             .setCause(
                 Failure.newBuilder()
-                    .setMessage("operation timed out")
+                    .setMessage(timeoutMessage)
                     .setTimeoutFailureInfo(
                         TimeoutFailureInfo.newBuilder().setTimeoutType(timeoutType)))
             .build();

temporal-test-server/src/main/java/io/temporal/internal/testservice/TestWorkflowMutableState.java

@@ -116,6 +116,12 @@ void completeAsyncNexusOperation(
 
   boolean validateOperationTaskToken(NexusTaskToken tt);
 
+  @Nullable
+  NexusOperationScheduledEventAttributes getNexusOperationScheduledEventAttributes(
+      long scheduledEventId);
+
+  boolean isNexusOperationStarted(long scheduledEventId);
+
   QueryWorkflowResponse query(QueryWorkflowRequest queryRequest, long deadline);
 
   TestWorkflowMutableStateImpl.UpdateHandle updateWorkflowExecution(

temporal-test-server/src/main/java/io/temporal/internal/testservice/TestWorkflowMutableStateImpl.java

@@ -852,6 +852,18 @@ private void processScheduleNexusOperation(
                   operation.getData().getAttempt()),
           "NexusOperation ScheduleToCloseTimeout");
     }
+    if (attr.hasScheduleToStartTimeout()
+        && Durations.toMillis(attr.getScheduleToStartTimeout()) > 0) {
+      // ScheduleToStartTimeout is the time from schedule to start (or completion if synchronous)
+      ctx.addTimer(
+          ProtobufTimeUtils.toJavaDuration(attr.getScheduleToStartTimeout()),
+          () ->
+              timeoutNexusOperation(
+                  scheduleEventId,
+                  TimeoutType.TIMEOUT_TYPE_SCHEDULE_TO_START,
+                  operation.getData().getAttempt()),
+          "NexusOperation ScheduleToStartTimeout");
+    }
     ctx.lockTimer("processScheduleNexusOperation");
   }
 
@@ -2309,6 +2321,23 @@ public void startNexusOperation(
           StateMachine<NexusOperationData> operation = getPendingNexusOperation(scheduledEventId);
           operation.action(StateMachines.Action.START, ctx, resp, 0);
           operation.getData().identity = clientIdentity;
+
+          // Add start-to-close timeout timer if configured
+          NexusOperationScheduledEventAttributes scheduledEvent =
+              operation.getData().scheduledEvent;
+          if (scheduledEvent.hasStartToCloseTimeout()
+              && Durations.toMillis(scheduledEvent.getStartToCloseTimeout()) > 0) {
+            // StartToCloseTimeout measures from when the operation started to when it completes
+            ctx.addTimer(
+                ProtobufTimeUtils.toJavaDuration(scheduledEvent.getStartToCloseTimeout()),
+                () ->
+                    timeoutNexusOperation(
+                        scheduledEventId,
+                        TimeoutType.TIMEOUT_TYPE_START_TO_CLOSE,
+                        operation.getData().getAttempt()),
+                "NexusOperation StartToCloseTimeout");
+          }
+
           scheduleWorkflowTask(ctx);
         });
   }
@@ -3691,6 +3720,20 @@ public boolean validateOperationTaskToken(NexusTaskToken tt) {
     return true;
   }
 
+  @Override
+  public NexusOperationScheduledEventAttributes getNexusOperationScheduledEventAttributes(
+      long scheduledEventId) {
+    StateMachine<NexusOperationData> operation = getPendingNexusOperation(scheduledEventId);
+    return operation.getData().scheduledEvent;
+  }
+
+  @Override
+  public boolean isNexusOperationStarted(long scheduledEventId) {
+    StateMachine<NexusOperationData> operation = getPendingNexusOperation(scheduledEventId);
+    // Operation is considered started if it has an operation token
+    return !operation.getData().operationToken.isEmpty();
+  }
+
   private boolean isTerminalState(State workflowState) {
     return workflowState == State.COMPLETED
         || workflowState == State.TIMED_OUT