[Workload Management] Modify logging message in WorkloadGroupService

CHANGELOG.md

@@ -16,6 +16,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Add last index request timestamp columns to the `_cat/indices` API. ([10766](https://github.com/opensearch-project/OpenSearch/issues/10766))
 - Introduce a new pull-based ingestion plugin for file-based indexing (for local testing) ([#18591](https://github.com/opensearch-project/OpenSearch/pull/18591))
 - Add support for search pipeline in search and msearch template ([#18564](https://github.com/opensearch-project/OpenSearch/pull/18564))
+- [Workload Management] Modify logging message in WorkloadGroupService ([#18712](https://github.com/opensearch-project/OpenSearch/pull/18712))
 - Add BooleanQuery rewrite moving constant-scoring must clauses to filter clauses ([#18510](https://github.com/opensearch-project/OpenSearch/issues/18510))
 - Add functionality for plugins to inject QueryCollectorContext during QueryPhase ([#18637](https://github.com/opensearch-project/OpenSearch/pull/18637))
 - Add support for non-timing info in profiler ([#18460](https://github.com/opensearch-project/OpenSearch/issues/18460))

server/src/main/java/org/opensearch/wlm/WorkloadGroupService.java

@@ -288,11 +288,15 @@ public void rejectIfNeeded(String workloadGroupId) {
                     if (threshold < lastRecordedUsage) {
                         reject = true;
                         reason.append(resourceType)
-                            .append(" limit is breaching for ENFORCED type WorkloadGroup: (")
+                            .append(" limit is breaching for workload group ")
+                            .append(workloadGroup.get_id())
+                            .append(", ")
                             .append(threshold)
                             .append(" < ")
                             .append(lastRecordedUsage)
-                            .append("). ");
+                            .append(", wlm mode is ")
+                            .append(workloadGroup.getResiliencyMode())
+                            .append(". ");
                         workloadGroupState.getResourceState().get(resourceType).rejections.inc();
                         // should not double count even if both the resource limits are breaching
                         break;