[fuzzy](test) be fuzzy conf (#14654)

be/src/common/config.h

@@ -861,6 +861,9 @@ CONF_String(jvm_max_heap_size, "1024M");
 // enable java udf and jdbc scannode
 CONF_Bool(enable_java_support, "true");
 
+// Set config randomly to check more issues in github workflow
+CONF_Bool(enable_fuzzy_mode, "false");
+
 #ifdef BE_TEST
 // test s3
 CONF_String(test_s3_resource, "resource");

be/src/common/configbase.cpp

@@ -406,13 +406,14 @@ bool persist_config(const std::string& field, const std::string& value) {
     return tmp_props.dump(conffile);
 }
 
-Status set_config(const std::string& field, const std::string& value, bool need_persist) {
+Status set_config(const std::string& field, const std::string& value, bool need_persist,
+                  bool force) {
     auto it = Register::_s_field_map->find(field);
     if (it == Register::_s_field_map->end()) {
         return Status::NotFound("'{}' is not found", field);
     }
 
-    if (!it->second.valmutable) {
+    if (!force && !it->second.valmutable) {
         return Status::NotSupported("'{}' is not support to modify", field);
     }
 
@@ -432,6 +433,20 @@ Status set_config(const std::string& field, const std::string& value, bool need_
                                 it->second.type);
 }
 
+Status set_fuzzy_config(const std::string& field, const std::string& value) {
+    return set_config(field, value, false, true);
+}
+
+void set_fuzzy_configs() {
+    // random value true or false
+    Status s =
+            set_fuzzy_config("disable_storage_page_cache", ((rand() % 2) == 0) ? "true" : "false");
+    LOG(INFO) << s.to_string();
+    // 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();
+}
+
 std::mutex* get_mutable_string_config_lock() {
     return &mutable_string_config_lock;
 }

be/src/common/configbase.h

@@ -174,7 +174,8 @@ extern std::mutex custom_conf_lock;
 bool init(const char* conf_file, bool fill_conf_map = false, bool must_exist = true,
           bool set_to_default = true);
 
-Status set_config(const std::string& field, const std::string& value, bool need_persist = false);
+Status set_config(const std::string& field, const std::string& value, bool need_persist = false,
+                  bool force = false);
 
 bool persist_config(const std::string& field, const std::string& value);
 
@@ -182,5 +183,9 @@ 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();
+
 } // namespace config
 } // namespace doris

be/src/service/doris_main.cpp

@@ -319,6 +319,11 @@ int main(int argc, char** argv) {
         return -1;
     }
 
+    if (doris::config::enable_fuzzy_mode) {
+        LOG(INFO) << "enable_fuzzy_mode is true, set fuzzy configs";
+        doris::config::set_fuzzy_configs();
+    }
+
 #if !defined(__SANITIZE_ADDRESS__) && !defined(ADDRESS_SANITIZER) && !defined(LEAK_SANITIZER) && \
         !defined(THREAD_SANITIZER) && !defined(USE_JEMALLOC)
     // Change the total TCMalloc thread cache size if necessary.