[Inference API] Improve chunked results error message (elastic#115807)

* Improve chunked results error message * Update RestStatus to conflict * precommit * Update docs/changelog/115807.yaml (cherry picked from commit 6742147)
maxhniebergall · Oct 30, 2024 · b5f5d70 · b5f5d70
1 parent 99196cb
commit b5f5d70
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diff --git a/docs/changelog/115807.yaml b/docs/changelog/115807.yaml
@@ -0,0 +1,5 @@
+pr: 115807
+summary: "[Inference API] Improve chunked results error message"
+area: Machine Learning
+type: enhancement
+issues: []
diff --git a/...plugin/core/src/main/java/org/elasticsearch/xpack/core/inference/results/ResultUtils.java b/...plugin/core/src/main/java/org/elasticsearch/xpack/core/inference/results/ResultUtils.java
@@ -14,8 +14,9 @@ public class ResultUtils {
 
     public static ElasticsearchStatusException createInvalidChunkedResultException(String expectedResultName, String receivedResultName) {
         return new ElasticsearchStatusException(
-            "Expected a chunked inference [{}] received [{}]",
-            RestStatus.INTERNAL_SERVER_ERROR,
+            "Received incompatible results. Check that your model_id matches the task_type of this endpoint. "
+                + "Expected chunked output of type [{}] but received [{}].",
+            RestStatus.CONFLICT,
             expectedResultName,
             receivedResultName
         );