gavinchou commented on code in PR #59157:
URL: https://github.com/apache/doris/pull/59157#discussion_r2646947117


##########
be/src/util/metrics.cpp:
##########
@@ -345,13 +346,12 @@ std::string MetricRegistry::to_prometheus(bool 
with_tablet_metrics) const {
 
     // Output
     std::stringstream ss;
-    std::string last_group_name;
+    std::unordered_set<std::string> exported_types;

Review Comment:
   please add a UT to reproduce issue #57788 and make sure this PR fix the 
issue.



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