[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"academy-blog-translations-none":3,"academy-blogs-en-1-1-all-websocket-server-load-balancer-all--*":4},{},{"data":5,"meta":71},[6],{"categoryId":7,"collectionId":8,"collectionName":9,"content":10,"createBy":11,"createDate":12,"created":13,"description":14,"expand":15,"group":63,"id":63,"image":64,"imageAlt":65,"imagePath":66,"keywordIds":67,"langId":59,"publishDate":36,"scheduleDate":12,"slug":68,"status":28,"title":65,"updateBy":11,"updated":69,"views":70},"wqxt7ag2gn7xcmk","sclblg987654321","school_blog","\u003Cp>In EP.70, we will discuss how to improve WebSocket Server performance using a Load Balancer. By distributing incoming connections across multiple servers, we can ensure that the WebSocket server can handle a large number of connections efficiently and scale horizontally without overloading any single server.\u003C\u002Fp>\u003Cp>Using a Load Balancer helps in increasing the availability and scalability of your WebSocket infrastructure, allowing it to manage heavy traffic and ensure uninterrupted service for clients.\u003C\u002Fp>\u003Cp> \u003C\u002Fp>\u003Ch2>Why Use a Load Balancer for WebSocket Server?\u003C\u002Fh2>\u003Cp>Using a Load Balancer in a WebSocket Server environment offers several key benefits, especially for real-time applications that need to handle numerous concurrent connections:\u003C\u002Fp>\u003Col>\u003Cli>Efficient Load Distribution:\u003Cbr>A Load Balancer evenly distributes incoming connections to multiple servers, which helps reduce the burden on any single server and enhances performance.\u003C\u002Fli>\u003Cli>Improved High Availability:\u003Cbr>If one server fails, the Load Balancer can automatically reroute traffic to available servers, ensuring minimal downtime and continuous service.\u003C\u002Fli>\u003Cli>Scalable Infrastructure:\u003Cbr>Load balancing allows you to easily scale your WebSocket system by adding more servers to handle increased traffic.\u003C\u002Fli>\u003Cli>Reduced Latency:\u003Cbr>Load balancing can help in reducing response times by routing requests to the nearest available server, thus improving user experience.\u003C\u002Fli>\u003Cli>Enhanced Reliability:\u003Cbr>Distributing connections across multiple servers makes the system more resilient and capable of handling peak loads without crashing.\u003C\u002Fli>\u003C\u002Fol>\u003Cp> \u003C\u002Fp>\u003Ch2>How to Set Up Load Balancer for WebSocket Server\u003C\u002Fh2>\u003Cp>To set up a Load Balancer for WebSocket Server, follow these steps:\u003C\u002Fp>\u003Col>\u003Cli>Choose the Right Load Balancer:\u003Cbr>You can use NGINX, HAProxy, or AWS Elastic Load Balancing (ALB), which support WebSocket connections. The Load Balancer should also support sticky sessions to maintain persistent WebSocket connections.\u003C\u002Fli>\u003Cli>\u003Cp>Configure WebSocket Server:\u003Cbr>Your WebSocket Server needs to be configured to work with the Load Balancer and accept connections from multiple servers.\u003C\u002Fp>\u003Cp>Example NGINX Configuration:\u003C\u002Fp>\u003Cpre>\u003Ccode class=\"language-plaintext language-nginx\">http {\n    upstream websocket {\n        server backend1.example.com:8080;\n        server backend2.example.com:8080;\n    }\n\n    server {\n        listen 80;\n        server_name websocket.example.com;\n\n        location \u002F {\n            proxy_pass http:\u002F\u002Fwebsocket;\n            proxy_http_version 1.1;\n            proxy_set_header Upgrade $http_upgrade;\n            proxy_set_header Connection 'upgrade';\n            proxy_set_header Host $host;\n            proxy_cache_bypass $http_upgrade;\n        }\n    }\n}\n\u003C\u002Fcode>\u003C\u002Fpre>\u003C\u002Fli>\u003Cli>\u003Cp>Setting Up WebSocket Server:\u003Cbr>Your WebSocket Server should handle incoming WebSocket requests and be ready to accept connections from the Load Balancer.\u003C\u002Fp>\u003Cp>Example WebSocket Server Code (Go):\u003C\u002Fp>\u003Cpre>\u003Ccode class=\"language-plaintext language-go\">package main\n\nimport (\n    \"log\"\n    \"net\u002Fhttp\"\n    \"github.com\u002Fgorilla\u002Fwebsocket\"\n)\n\nvar upgrader = websocket.Upgrader{\n    CheckOrigin: func(r *http.Request) bool {\n        return true\n    },\n}\n\nfunc handler(w http.ResponseWriter, r *http.Request) {\n    conn, err := upgrader.Upgrade(w, r, nil)\n    if err != nil {\n        log.Println(err)\n        return\n    }\n    defer conn.Close()\n\n    for {\n        messageType, p, err := conn.ReadMessage()\n        if err != nil {\n            log.Println(err)\n            break\n        }\n        err = conn.WriteMessage(messageType, p)\n        if err != nil {\n            log.Println(err)\n            break\n        }\n    }\n}\n\nfunc main() {\n    http.HandleFunc(\"\u002F\", handler)\n    log.Fatal(http.ListenAndServe(\":8080\", nil))\n}\n\u003C\u002Fcode>\u003C\u002Fpre>\u003C\u002Fli>\u003Cli>Testing the Load Balancer Setup:\u003Cbr>After setting up the Load Balancer and WebSocket Server, you should test it to ensure everything works as expected:\u003Cul>\u003Cli>Test with multiple connections to verify the load distribution.\u003C\u002Fli>\u003Cli>Ensure the Load Balancer handles the failover correctly in case of server failure.\u003C\u002Fli>\u003Cli>Test performance to check the reduced latency and improved scalability.\u003C\u002Fli>\u003C\u002Ful>\u003C\u002Fli>\u003C\u002Fol>\u003Cp> \u003C\u002Fp>\u003Chr>\u003Cp> \u003C\u002Fp>\u003Ch3>Challenge!\u003C\u002Fh3>\u003Cp>Try setting up \u003Cstrong>WebSocket Load Balancer\u003C\u002Fstrong> for your chat application and test how it performs under high traffic conditions!\u003C\u002Fp>","r8v4zgsahjuwpeb","","2026-03-04 08:48:03.586Z","Learn how to use Load Balancer to improve the performance of WebSocket Server, enabling it to efficiently handle a high number of connections and scale seamlessly.",{"categoryId":16,"keywordIds":30,"langId":54},{"blogIds":17,"collectionId":18,"collectionName":19,"createBy":20,"created":21,"id":7,"image":22,"imageAlt":12,"imagePath":23,"label":24,"name":25,"priority":26,"publishDate":27,"scheduleDate":12,"status":28,"updateBy":20,"updated":29},[],"sclcatblg987654321","school_category_blog","oplnwslvnmx5axc","2026-03-04 08:33:53.210Z","59ty92ns80w_15oc1implw.png","https:\u002F\u002Ftwsme-r2.tumwebsme.com\u002Fsclcatblg987654321\u002Fwqxt7ag2gn7xcmk\u002F59ty92ns80w_15oc1implw.png",{"en":25,"th":25},"Golang The Series",1,"2026-03-16 04:39:38.440Z","Publish","2026-03-17 06:07:59.733Z",[31,38,42,46,50],{"collectionId":32,"collectionName":33,"createBy":12,"created":34,"id":35,"publishDate":36,"scheduleDate":12,"status":28,"title":37,"updateBy":12,"updated":34},"sclkey987654321","school_keyword","2026-03-04 08:48:00.744Z","gzpdwk7we3pl6ew","2025-07-25 10:16:51.187Z","WebSocket Server performance",{"collectionId":32,"collectionName":33,"createBy":12,"created":39,"id":40,"publishDate":36,"scheduleDate":12,"status":28,"title":41,"updateBy":12,"updated":39},"2026-03-04 08:48:01.322Z","qwms9vhmllldxj2","WebSocket Load Balancing",{"collectionId":32,"collectionName":33,"createBy":12,"created":43,"id":44,"publishDate":36,"scheduleDate":12,"status":28,"title":45,"updateBy":12,"updated":43},"2026-03-04 08:48:01.669Z","mzdds5mugy9npep","Load Balancer WebSocket",{"collectionId":32,"collectionName":33,"createBy":12,"created":47,"id":48,"publishDate":36,"scheduleDate":12,"status":28,"title":49,"updateBy":12,"updated":47},"2026-03-04 08:48:01.927Z","vcknw4qrrifzlfg","WebSocket scalability",{"collectionId":32,"collectionName":33,"createBy":12,"created":51,"id":52,"publishDate":36,"scheduleDate":12,"status":28,"title":53,"updateBy":12,"updated":51},"2026-03-04 08:48:02.273Z","qebicjm96ar5e92","High availability WebSocket",{"code":55,"collectionId":56,"collectionName":57,"createAt":58,"id":59,"is_default":60,"language":61,"updateAt":62},"en","pbc_1989393366","locale","2026-01-22 11:00:02.726Z","qv9c1llfov2d88z",false,"English","2026-02-05 10:48:59.032Z","ijcbg9q8o2kz93x","112_11zon_layoepegt7.webp","EP.70 Improving WebSocket Server Performance with Load Balancer","https:\u002F\u002Ftwsme-r2.tumwebsme.com\u002Fsclblg987654321\u002Fijcbg9q8o2kz93x\u002F112_11zon_layoepegt7.webp",[35,40,44,48,52],"websocket-server-load-balancer","2026-03-04 08:48:04.016Z",208,{"pagination":72},{"page":26,"pageSize":26,"pageCount":26,"total":26}]