| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| #pragma once |
| |
| #include <dsn/utility/singleton.h> |
| #include <dsn/utility/synchronize.h> |
| #include <dsn/cpp/json_helper.h> |
| |
| #include <boost/asio/deadline_timer.hpp> |
| #include <event2/http.h> |
| #include <event2/http_struct.h> |
| |
| #include <prometheus/registry.h> |
| #include <prometheus/exposer.h> |
| |
| namespace pegasus { |
| namespace server { |
| |
| // Falcon field description: |
| // http://git.n.xiaomi.com/falcon/doc/wikis/instance_monitor |
| struct falcon_metric |
| { |
| std::string endpoint; // metric host |
| std::string metric; // metric name |
| int64_t timestamp; // report time in unix seconds |
| int32_t step; // report interval in seconds |
| double value; // metric value |
| std::string counterType; // GAUGE or COUNTER |
| std::string tags; // metric description, such as cluster/service |
| DEFINE_JSON_SERIALIZATION(endpoint, metric, timestamp, step, value, counterType, tags) |
| }; |
| |
| enum class perf_counter_sink_t |
| { |
| FALCON, |
| PROMETHEUS, |
| INVALID |
| }; |
| |
| class pegasus_counter_reporter : public ::dsn::utils::singleton<pegasus_counter_reporter> |
| { |
| public: |
| pegasus_counter_reporter(); |
| virtual ~pegasus_counter_reporter(); |
| void start(); |
| void stop(); |
| |
| private: |
| void falcon_initialize(); |
| void prometheus_initialize(); |
| |
| void update_counters_to_falcon(const std::string &result, int64_t timestamp); |
| |
| void http_post_request(const std::string &host, |
| int32_t port, |
| const std::string &path, |
| const std::string &content_type, |
| const std::string &data); |
| static void http_request_done(struct evhttp_request *req, void *arg); |
| |
| void update(); |
| void on_report_timer(std::shared_ptr<boost::asio::deadline_timer> timer, |
| const boost::system::error_code &ec); |
| |
| mutable ::dsn::utils::rw_lock_nr _lock; |
| std::string _local_host; |
| uint16_t _local_port; |
| std::string _app_name; |
| std::string _cluster_name; |
| |
| uint64_t _last_report_time_ms; |
| std::shared_ptr<boost::asio::deadline_timer> _report_timer; |
| |
| // perf counter flags |
| perf_counter_sink_t _perf_counter_sink; |
| |
| falcon_metric _falcon_metric; |
| |
| // prometheus relates |
| std::shared_ptr<prometheus::Registry> _registry; |
| std::unique_ptr<prometheus::Exposer> _exposer; |
| std::map<std::string, prometheus::Family<prometheus::Gauge> *> _gauge_family_map; |
| }; |
| } // namespace server |
| } // namespace pegasus |