add detail for replica missing hint

fe/fe-core/src/main/java/org/apache/doris/clone/TabletScheduler.java

@@ -84,6 +84,7 @@
 import java.util.Optional;
 import java.util.Queue;
 import java.util.Set;
+import java.util.stream.Collectors;
 
 /**
  * TabletScheduler saved the tablets produced by TabletChecker and try to schedule them.
@@ -1520,7 +1521,13 @@ private RootPathLoadStatistic doChooseAvailableDestPath(TabletSchedCtx tabletCtx
         List<BePathLoadStatPair> allFitPaths =
                 !allFitPathsSameMedium.isEmpty() ? allFitPathsSameMedium : allFitPathsDiffMedium;
         if (allFitPaths.isEmpty()) {
-            throw new SchedException(Status.UNRECOVERABLE, "unable to find dest path for new replica");
+            List<String> backendsInfo = Env.getCurrentSystemInfo().getAllClusterBackendsNoException().values().stream()
+                    .filter(be -> be.getLocationTag() == tag)
+                    .map(Backend::getDetailsForCreateReplica)
+                    .collect(Collectors.toList());
+            throw new SchedException(Status.UNRECOVERABLE, String.format("unable to find dest path for new replica"
+                    + " for replica allocation { %s } with tag %s storage medium %s, backends on this tag is: %s",
+                    tabletCtx.getReplicaAlloc(), tag, tabletCtx.getStorageMedium(), backendsInfo));
         }
 
         BePathLoadStatPairComparator comparator = new BePathLoadStatPairComparator(allFitPaths);