yiguolei commented on code in PR #48187:
URL: https://github.com/apache/doris/pull/48187#discussion_r1965707605


##########
fe/fe-core/src/main/java/org/apache/doris/catalog/OlapTable.java:
##########
@@ -3096,19 +3097,31 @@ public TFetchOption generateTwoPhaseReadOption(long 
selectedIndexId) {
         fetchOption.setFetchRowStore(useStoreRow);
         fetchOption.setUseTwoPhaseFetch(true);
 
-        // get backend by tag
-        Set<Tag> tagSet = new HashSet<>();
         ConnectContext context = ConnectContext.get();
-        if (context != null) {
-            tagSet = context.getResourceTags();
+        if (context == null) {
+            context = new ConnectContext();
+            context.setThreadLocalInfo();
         }
         BeSelectionPolicy policy = new BeSelectionPolicy.Builder()
                 .needQueryAvailable()
                 .setRequireAliveBe()
-                .addTags(tagSet)
                 .build();
+
         TPaloNodesInfo nodesInfo = new TPaloNodesInfo();
-        for (Backend backend : 
Env.getCurrentSystemInfo().getBackendsByPolicy(policy)) {
+        ComputeGroup computeGroup = null;
+        if (Config.isCloudMode()) {
+            try {
+                computeGroup = Env.getCurrentEnv().getComputeGroupMgr()
+                        .getComputeGroup(context.getComputeGroup());
+            } catch (ComputeGroupException e) {
+                throw new RuntimeException(e);

Review Comment:
   不要扔runtime exception;不要有compute group exception, 使用user exception



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