diff --git a/be/src/common/config.cpp b/be/src/common/config.cpp
index a433b7ee8a..f7f4cc99a4 100644
--- a/be/src/common/config.cpp
+++ b/be/src/common/config.cpp
@@ -1602,20 +1602,23 @@ void update_config(const std::string& field, const std::string& value) {
     }
 }
 
-Status set_fuzzy_config(const std::string& field, const std::string& value) {
-    LOG(INFO) << fmt::format("FUZZY MODE: {} has been set to {}", field, value);
-    return set_config(field, value, false, true);
-}
+Status set_fuzzy_configs() {
+    std::unordered_map<std::string, std::string> fuzzy_field_and_value;
 
-void set_fuzzy_configs() {
-    // random value true or false
-    static_cast<void>(
-            set_fuzzy_config("disable_storage_page_cache", ((rand() % 2) == 0) ? "true" : "false"));
-    static_cast<void>(
-            set_fuzzy_config("enable_system_metrics", ((rand() % 2) == 0) ? "true" : "false"));
-    // random value from 8 to 48
-    // s = set_fuzzy_config("doris_scanner_thread_pool_thread_num", std::to_string((rand() % 41) + 8));
-    // LOG(INFO) << s.to_string();
+    // if have set enable_fuzzy_mode=true in be.conf, will fuzzy those field and values
+    fuzzy_field_and_value["disable_storage_page_cache"] = ((rand() % 2) == 0) ? "true" : "false";
+    fuzzy_field_and_value["enable_system_metrics"] = ((rand() % 2) == 0) ? "true" : "false";
+
+    fmt::memory_buffer buf;
+    for (auto it = fuzzy_field_and_value.begin(); it != fuzzy_field_and_value.end(); it++) {
+        const auto& field = it->first;
+        const auto& value = it->second;
+        RETURN_IF_ERROR(set_config(field, value, false, true));
+        fmt::format_to(buf, "{}={}, ", field, value);
+    }
+    LOG(INFO) << fmt::format("FUZZY MODE IN BE: those variables have been changed: ({}).",
+                             fmt::to_string(buf));
+    return Status::OK();
 }
 
 std::mutex* get_mutable_string_config_lock() {
diff --git a/be/src/common/config.h b/be/src/common/config.h
index 5c298f906c..6fcbecd8f7 100644
--- a/be/src/common/config.h
+++ b/be/src/common/config.h
@@ -1364,9 +1364,7 @@ std::mutex* get_mutable_string_config_lock();
 
 std::vector<std::vector<std::string>> get_config_info();
 
-Status set_fuzzy_config(const std::string& field, const std::string& value);
-
-void set_fuzzy_configs();
+Status set_fuzzy_configs();
 
 void update_config(const std::string& field, const std::string& value);
 
diff --git a/be/src/service/doris_main.cpp b/be/src/service/doris_main.cpp
index b3962af87e..a3ea8f14e0 100644
--- a/be/src/service/doris_main.cpp
+++ b/be/src/service/doris_main.cpp
@@ -380,8 +380,11 @@ int main(int argc, char** argv) {
     doris::init_thrift_logging();
 
     if (doris::config::enable_fuzzy_mode) {
-        LOG(INFO) << "enable_fuzzy_mode is true, set fuzzy configs";
-        doris::config::set_fuzzy_configs();
+        Status status = doris::config::set_fuzzy_configs();
+        if (!status.ok()) {
+            LOG(WARNING) << "Failed to initialize fuzzy config: " << status;
+            exit(1);
+        }
     }
 
 #if !defined(__SANITIZE_ADDRESS__) && !defined(ADDRESS_SANITIZER) && !defined(LEAK_SANITIZER) && \