Python 代码实现高性能分布式异构资源调度管理系统
我们将使用Python和一些常用的库如Flask(用于API),Celery(用于任务队列),Redis(用于消息队列和缓存),以及Docker(用于模拟异构资源)。
Resource Discovery and Registration(资源发现与注册)
首先,实现资源的注册和发现。我们将使用Flask来创建一个简单的API服务器。
from flask import Flask, request, jsonify
app = Flask(__name__)
resources = {}
@app.route('/register', methods=['POST'])
def register():
data = request.get_json()
resource_id = data['resource_id']
resources[resource_id] = data
return jsonify({"message": "Resource registered successfully"}), 200
@app.route('/resources', methods=['GET'])
def get_resources():
return jsonify(resources), 200
if __name__ == '__main__':
app.run(host='0.0.0.0', port=5000)
Resource Monitoring and Health Check(资源监控与健康检查)
使用一个定时任务来定期检查每个资源的状态。
import threading
import time
import requests
def health_check():
while True:
for resource_id, resource in resources.items():
try:
response = requests.get(resource['health_check_url'])
if response.status_code != 200:
print(f"Resource {resource_id} is down")
except requests.ConnectionError:
print(f"Resource {resource_id} is down")
time.sleep(10)
health_check_thread = threading.Thread(target=health_check)
health_check_thread.start()
Task Scheduling(任务调度)
使用Celery来实现任务调度。
from celery import Celery
celery_app = Celery('task_scheduler', broker='redis://localhost:6379/0')
@celery_app.task
def execute_task(task_data):
resource_id = task_data['resource_id']
resource = resources.get(resource_id)
if not resource:
return {"error": "Resource not found"}
# Simulate task execution
time.sleep(2)
return {"message": f"Task executed on resource {resource_id}"}
Load Balancing(负载均衡)
实现一个简单的轮询负载均衡器。
class LoadBalancer:
def __init__(self):
self.index = 0
def get_next_resource(self):
if not resources:
return None
resource_ids = list(resources.keys())
resource = resources[resource_ids[self.index]]
self.index = (self.index + 1) % len(resources)
return resource
load_balancer = LoadBalancer()
Communication and Coordination(通信与协调)
使用Redis作为消息队列实现节点间的通信。
import redis
redis_client = redis.StrictRedis(host='localhost', port=6379, db=0)
def send_message(channel, message):
redis_client.publish(channel, message)
def listen_to_channel(channel):
pubsub = redis_client.pubsub()
pubsub.subscribe(channel)
for message in pubsub.listen():
print(message)
User Interface(用户界面)
创建一个简单的Web界面来展示资源状态和任务执行情况。
from flask import Flask, render_template
app = Flask(__name__)
@app.route('/')
def index():
return render_template('index.html', resources=resources)
if __name__ == '__main__':
app.run(host='0.0.0.0', port=8000)
综合整合
确保所有模块协同工作:
启动Flask API:运行资源发现和注册服务。 启动Celery Worker:在后台运行任务调度。 启动健康检查线程:持续监控资源状态。 启动Flask Web界面:提供用户界面。
# 启动API服务
python resource_registration.py
# 启动Celery Worker
celery -A task_scheduler worker --loglevel=info
# 启动Web界面
python user_interface.py
这个系统虽然是一个简化版,但包含了实现分布式异构资源调度管理系统的关键模块。可以根据具体需求进一步扩展和优化,例如增加安全认证、丰富任务调度算法、集成更多的监控工具等。
C++ 代码实现高性能分布式异构资源调度管理系统
我们将使用Python和一些常用的库如Flask(用于API),Celery(用于任务队列),Redis(用于消息队列和缓存),以及Docker(用于模拟异构资源)。
Resource Discovery and Registration(资源发现与注册)
首先,实现资源的注册和发现。我们将使用Flask来创建一个简单的API服务器。
// ResourceRegistrationServer.cpp
#include <boost/asio.hpp>
#include <iostream>
#include <unordered_map>
#include <string>
#include <nlohmann/json.hpp>
using boost::asio::ip::tcp;
using json = nlohmann::json;
std::unordered_map<std::string, json> resources;
void handle_request(tcp::socket& socket) {
boost::asio::streambuf buffer;
boost::asio::read_until(socket, buffer, "\r\n\r\n");
std::istream request_stream(&buffer);
std::string request_line;
std::getline(request_stream, request_line);
if (request_line.find("POST /register") == 0) {
std::ostringstream response;
std::ostringstream request_body;
request_body << &buffer;
auto data = json::parse(request_body.str());
std::string resource_id = data["resource_id"];
resources[resource_id] = data;
response << "HTTP/1.1 200 OK\r\n"
<< "Content-Type: application/json\r\n"
<< "Content-Length: " << data.dump().length() << "\r\n"
<< "\r\n"
<< data.dump();
boost::asio::write(socket, boost::asio::buffer(response.str()));
}
}
void server(boost::asio::io_context& io_context, unsigned short port) {
tcp::acceptor acceptor(io_context, tcp::endpoint(tcp::v4(), port));
while (true) {
tcp::socket socket(io_context);
acceptor.accept(socket);
handle_request(socket);
}
}
int main() {
try {
boost::asio::io_context io_context;
server(io_context, 8080);
} catch (std::exception& e) {
std::cerr << "Exception: " << e.what() << "\n";
}
return 0;
}
Resource Monitoring and Health Check(资源监控与健康检查)
使用一个定时任务来定期检查每个资源的状态。
// HealthCheck.cpp
#include <iostream>
#include <thread>
#include <unordered_map>
#include <nlohmann/json.hpp>
#include <boost/asio.hpp>
using json = nlohmann::json;
using boost::asio::ip::tcp;
extern std::unordered_map<std::string, json> resources;
void health_check() {
while (true) {
for (auto& [resource_id, resource] : resources) {
try {
boost::asio::io_context io_context;
tcp::resolver resolver(io_context);
auto endpoints = resolver.resolve(resource["host"], "http");
tcp::socket socket(io_context);
boost::asio::connect(socket, endpoints);
std::string request = "GET " + resource["health_check_url"].get<std::string>() + " HTTP/1.1\r\nHost: " + resource["host"].get<std::string>() + "\r\n\r\n";
boost::asio::write(socket, boost::asio::buffer(request));
boost::asio::streambuf response;
boost::asio::read_until(socket, response, "\r\n");
std::istream response_stream(&response);
std::string http_version;
response_stream >> http_version;
unsigned int status_code;
response_stream >> status_code;
std::string status_message;
std::getline(response_stream, status_message);
if (status_code != 200) {
std::cerr << "Resource " << resource_id << " is down\n";
}
} catch (std::exception& e) {
std::cerr << "Resource " << resource_id << " is down\n";
}
}
std::this_thread::sleep_for(std::chrono::seconds(10));
}
}
int main() {
std::thread health_check_thread(health_check);
health_check_thread.join();
return 0;
}
Task Scheduling(任务调度)
使用Celery来实现任务调度。
// TaskScheduler.cpp
#include <queue>
#include <thread>
#include <mutex>
#include <condition_variable>
#include <iostream>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
std::queue<json> task_queue;
std::mutex queue_mutex;
std::condition_variable cv;
void task_worker() {
while (true) {
std::unique_lock<std::mutex> lock(queue_mutex);
cv.wait(lock, [] { return !task_queue.empty(); });
auto task = task_queue.front();
task_queue.pop();
lock.unlock();
std::cout << "Executing task on resource " << task["resource_id"] << std::endl;
std::this_thread::sleep_for(std::chrono::seconds(2)); // Simulate task execution
}
}
void schedule_task(const json& task) {
std::unique_lock<std::mutex> lock(queue_mutex);
task_queue.push(task);
lock.unlock();
cv.notify_one();
}
int main() {
std::thread worker_thread(task_worker);
// Example of scheduling a task
json task;
task["resource_id"] = "resource1";
schedule_task(task);
worker_thread.join();
return 0;
}
Load Balancing(负载均衡)
实现一个简单的轮询负载均衡器。
// LoadBalancer.cpp
#include <unordered_map>
#include <vector>
#include <string>
extern std::unordered_map<std::string, json> resources;
class LoadBalancer {
public:
LoadBalancer() : index(0) {}
json get_next_resource() {
if (resources.empty()) {
throw std::runtime_error("No resources available");
}
std::vector<std::string> resource_ids;
for (const auto& [key, value] : resources) {
resource_ids.push_back(key);
}
auto resource = resources[resource_ids[index]];
index = (index + 1) % resources.size();
return resource;
}
private:
size_t index;
};
int main() {
LoadBalancer lb;
try {
auto resource = lb.get_next_resource();
std::cout << "Selected resource: " << resource["resource_id"] << std::endl;
} catch (const std::exception& e) {
std::cerr << "Exception: " << e.what() << std::endl;
}
return 0;
}
Communication and Coordination(通信与协调)
使用Redis作为消息队列实现节点间的通信。
// RedisCommunication.cpp
#include <hiredis/hiredis.h>
#include <iostream>
void send_message(const std::string& channel, const std::string& message) {
redisContext* context = redisConnect("127.0.0.1", 6379);
if (context == nullptr || context->err) {
if (context) {
std::cerr << "Error: " << context->errstr << std::endl;
redisFree(context);
} else {
std::cerr << "Can't allocate redis context" << std::endl;
}
return;
}
redisCommand(context, "PUBLISH %s %s", channel.c_str(), message.c_str());
redisFree(context);
}
void listen_to_channel(const std::string& channel) {
redisContext* context = redisConnect("127.0.0.1", 6379);
if (context == nullptr || context->err) {
if (context) {
std::cerr << "Error: " << context->errstr << std::endl;
redisFree(context);
} else {
std::cerr << "Can't allocate redis context" << std::endl;
}
return;
}
redisReply* reply = (redisReply*)redisCommand(context, "SUBSCRIBE %s", channel.c_str());
freeReplyObject(reply);
while (redisGetReply(context, (void**)&reply) == REDIS_OK) {
std::cout << "Received message: " << reply->element[2]->str << std::endl;
freeReplyObject(reply);
}
redisFree(context);
}
int main() {
std::thread listener_thread(listen_to_channel, "task_channel");
// Example of sending a message
send_message("task_channel", "Hello, Redis!");
listener_thread.join();
return 0;
}
User Interface(用户界面)
创建一个简单的Web界面来展示资源状态和任务执行情况。
// UserInterfaceServer.cpp
#include <boost/asio.hpp>
#include <iostream>
#include <unordered_map>
#include <string>
#include <nlohmann/json.hpp>
using boost::asio::ip::tcp;
using json = nlohmann::json;
extern std::unordered_map<std::string, json> resources;
void handle_request(tcp::socket& socket) {
boost::asio::streambuf buffer;
boost::asio::read_until(socket
综合整合
确保所有模块协同工作:
启动Flask API:运行资源发现和注册服务。 启动Celery Worker:在后台运行任务调度。 启动健康检查线程:持续监控资源状态。 启动Flask Web界面:提供用户界面。
# 启动API服务
python resource_registration.py
# 启动Celery Worker
celery -A task_scheduler worker --loglevel=info
# 启动Web界面
python user_interface.py
这个系统虽然是一个简化版,但包含了实现分布式异构资源调度管理系统的关键模块。可以根据具体需求进一步扩展和优化,例如增加安全认证、丰富任务调度算法、集成更多的监控工具等。