add fe/be metric system table

Author: zhaorongsheng

be/src/util/metrics.cpp

@@ -487,71 +487,4 @@ void MetricRegistry::get_be_metrics_block(vectorized::Block* block) const {
     }
 }
 
-void MetricRegistry::get_be_metrics_block(vectorized::Block* block) const {
-    int64_t be_id = ExecEnv::GetInstance()->cluster_info()->backend_id;
-    std::string be_ip = BackendOptions::get_localhost();
-
-    std::lock_guard<std::mutex> l(_lock);
-    for (const auto& entity : _entities) {
-        std::lock_guard<std::mutex> entity_lock(entity.first->_lock);
-        entity.first->trigger_hook_unlocked(false);
-
-        for (const auto& metric : entity.first->_metrics) {
-            rj::Document tag_doc(rj::kObjectType);
-            rj::Document::AllocatorType& allocator = tag_doc.GetAllocator();
-
-            for (auto& label : metric.first->labels) {
-                tag_doc.AddMember(
-                    rj::Value(label.first.c_str(), allocator),
-                    rj::Value(label.second.c_str(), allocator),
-                    allocator
-                );
-            }
-
-            for (auto& label : entity.first->_labels) {
-                tag_doc.AddMember(
-                    rj::Value(label.first.c_str(), allocator),
-                    rj::Value(label.second.c_str(), allocator),
-                    allocator
-                );
-            }
-
-            rj::StringBuffer tag_buf;
-            rj::Writer<rj::StringBuffer> tag_writer(tag_buf);
-            tag_doc.Accept(tag_writer);
-            std::string tag_str = tag_buf.GetString();
-
-            std::string metric_type;
-            switch (metric.first->type) {
-            case MetricType::COUNTER:
-                metric_type = "counter";
-                break;
-            case MetricType::GAUGE:
-                metric_type = "gauge";
-                break;
-            case MetricType::HISTOGRAM:
-                metric_type = "histogram";
-                break;
-            default:
-                metric_type = "unknown";
-            }
-
-            double metric_value = 0.0;
-            try {
-                std::string value_str = metric.second->to_string();
-                metric_value = std::stod(value_str); // 字符串转double
-            } catch (...) {
-            }
-
-            // BE_ID(0), BE_IP(1), METRIC_NAME(2), METRIC_TYPE(3), METRIC_VALUE(4), TAG(5)
-            SchemaScannerHelper::insert_int64_value(0, be_id, block);
-            SchemaScannerHelper::insert_string_value(1, be_ip, block);
-            SchemaScannerHelper::insert_string_value(2, metric.first->simple_name(), block);
-            SchemaScannerHelper::insert_string_value(3, metric_type, block);
-            SchemaScannerHelper::insert_double_value(4, metric_value, block);
-            SchemaScannerHelper::insert_string_value(5, tag_str, block);
-        }
-    }
-}
-
 } // namespace doris