Jzjsnow commented on code in PR #3534:
URL: https://github.com/apache/amoro/pull/3534#discussion_r2063482007


##########
amoro-ams/src/main/java/org/apache/amoro/server/table/DefaultTableService.java:
##########
@@ -275,18 +274,24 @@ public void exploreExternalCatalog(ExternalCatalog 
externalCatalog) {
               try {
                 tableIdentifiersFutures.add(
                     CompletableFuture.supplyAsync(
-                        () -> {
-                          try {
-                            return 
externalCatalog.listTables(database).stream()
-                                .map(TableIdentity::new)
-                                .collect(Collectors.toSet());
-                          } catch (Exception e) {
-                            LOG.error(
-                                "TableExplorer list tables in database {} 
error", database, e);
-                            return new HashSet<>();
-                          }
-                        },
-                        tableExplorerExecutors));
+                            () -> {
+                              try {
+                                return 
externalCatalog.listTables(database).stream()
+                                    .map(TableIdentity::new)
+                                    .collect(Collectors.toSet());
+                              } catch (Exception e) {

Review Comment:
   Sure, with `exceptionally()`, single thread exceptions can be thrown 
directly. Thanks for the hint!



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