1、完善基础例子

Author: chyingp

examples/2016.11.30-cluster/req.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+for((i=1;i<=4;i++)); do   
+  curl http://127.0.0.1:3000
+  echo ""
+done 

examples/2016.11.30-cluster/server.js

@@ -8,6 +8,8 @@ if(cluster.isMaster){
 	}
 }else{
 	http.createServer(function(req, res){
-		res.end('ok');
+		res.end(`response from worker ${process.pid}`);
 	}).listen(3000);
+
+	console.log(`Worker ${process.pid} started`);
 }

模块/cluster.md

@@ -33,11 +33,34 @@ if(cluster.isMaster){
   }
 }else{
   http.createServer(function(req, res){
-    res.end('ok');
+    res.end(`response from worker ${process.pid}`);
   }).listen(3000);
+
+  console.log(`Worker ${process.pid} started`);
 }
 ```
 
+客户端发送请求：`./req.sh`
+
+```bash
+#!/bin/bash
+
+# req.sh
+for((i=1;i<=4;i++)); do   
+  curl http://127.0.0.1:3000
+  echo ""
+done 
+```
+
+输出如下：
+
+```bash
+response from worker 23735
+response from worker 23731
+response from worker 23729
+response from worker 23730
+```
+
 ## 实现原理
 
 主要搞清楚三个问题：