docs: add notes on service idle timeout

docs/user_guide/server/overview.md

@@ -268,6 +268,19 @@ tRPC-Go provides three timeout mechanisms for RPC calls: link timeout, message t
 
 This feature requires protocol support (the protocol needs to carry timeout metadata downstream). The tRPC protocol, generic HTTP RPC protocol all support timeout control.
 
+## Idle Timeout
+
+The server has a default idle timeout of 60 seconds to prevent excessive idle connections from consuming server-side resources. This value can be modified through the `idletimeout` setting in the framework configuration:
+
+```yaml
+server:
+  service:
+    - name: trpc.server.service.Method
+      network: tcp
+      protocol: trpc
+      idletime: 60000 # The unit is milliseconds. Setting it to -1 means there is no idle timeout (setting it to 0 will still default to the 60s by the framework)
+```
+
 ## Link transmission
 
 The tRPC-Go framework provides a mechanism for passing fields between the client and server and passing them down the entire call chain. For the mechanism and usage of link transmission, please refer to [tRPC-Go Link Transmission](/docs/user_guide/metadata_transmission.md).

docs/user_guide/server/overview.zh_CN.md

@@ -266,7 +266,20 @@ tRPC-Go 从设计之初就考虑了框架的易测性，在通过 pb 生成桩
 
 tRPC-Go 为 RPC 调用提供了 3 种超时机制控制：链路超时，消息超时和调用超时。关于这 3 种超时机制的原理介绍和相关配置，请参考 [tRPC-Go 超时控制](/docs/user_guide/timeout_control.zh_CN.md)。
 
-此功能需要协议的支持（协议需要携带 timeout 元数据到下游），tRPC 协议，泛 HTTP RPC 协议均支持超时控制功能。其
+此功能需要协议的支持（协议需要携带 timeout 元数据到下游），tRPC 协议，泛 HTTP RPC 协议均支持超时控制功能。
+
+## 空闲超时
+
+服务默认存在一个 60s 的空闲超时时间，以防止过多空闲连接消耗服务侧的资源，这个值可以通过框架配置中的 `idletimeout` 来进行修改：
+
+```yaml
+server:
+  service:
+    - name: trpc.server.service.Method
+      network: tcp
+      protocol: trpc
+      idletime: 60000 # 单位是毫秒, 设置为 -1 的时候表示没有空闲超时(这里设置为 0 时框架仍会自动转为默认的 60s)
+```
 
 ## 链路透传
 

http/transport_test.go

@@ -809,6 +809,9 @@ func TestCheckRedirect(t *testing.T) {
 		return nil
 	}
 	thttp.DefaultClientTransport.(*thttp.ClientTransport).CheckRedirect = checkRedirect
+	defer func() {
+		thttp.DefaultClientTransport.(*thttp.ClientTransport).CheckRedirect = nil
+	}()
 	proxy := thttp.NewClientProxy("trpc.test.helloworld.Greeter",
 		client.WithTarget("ip://"+ln.Addr().String()),
 		client.WithSerializationType(codec.SerializationTypeNoop),

pool/connpool/checker_unix_test.go

@@ -53,7 +53,7 @@ func TestRemoteEOF(t *testing.T) {
 	require.Nil(t, pc.Close())
 }
 
-func TestUnexceptedRead(t *testing.T) {
+func TestUnexpectedRead(t *testing.T) {
 	var s server
 	require.Nil(t, s.init())