Android的HTTP连接 - 多个设备无法连接在同一台服务器 [英] Android http connection - multiple devices cannot connect the same server
问题描述
我真的需要帮助这里...
I really need help here...
我有一个简单的Android应用程序，连接到我断绝通过HTTPS来获取数据。
I have a simple Android application that connects to my sever to fetch data over HTTPS.
一切工作正常，直到我连接到其他设备（iOS或Android）在同一台服务器。我开始得到超时或连接被拒绝，或根据我使用（有时SSL握手）
Everything is working fine up until i connected to the same server from another device (iOS or Android). I am starting to get timeouts or connection refused or other errors depending on the library that I use (sometimes SSL handshake)
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我试过同一路由器上2 Android应用 - 失败
I tried 2 android app on the same router - fails
我试过排球，改造，普通HTTP库 - 失败
I tried Volley, Retrofit, plain http library - fails
如果一个设备通过蜂窝网络和一个在WiFi连接，这是工作的罚款。不过，我已经看到它未能甚至使用连接到蜂窝网络，而不是无线设备2例。
if one device is connected via cellular network and one on wifi, it is working fine. However, i have seen cases that it fails even using 2 devices connected to cellular network and not wifi.
这是很容易复制。一个应用程序工作正常。只要我在另一台设备上完成的操作。第一个应用程序将无法连接。
It is easy to reproduce. one app is working fine. as soon as i do an operation on the other device. the first app will not be able to connect.
iOS应用。没有失败
iOS app using the same api/server is working fine. no failures
我出现故障时跑在Android应用程式的Wireshark并收到以下内容：
I ran wireshark on the android app during failure and received the following:
70 47.073286 10.0.0.1 10.0.0.138 120 ICMP不可达的目标（端口不可达）
70 47.073286 10.0.0.1 10.0.0.138 ICMP 120 Destination unreachable (Port unreachable)
好像端口的问题。我不知道了，如果这是服务器问题还是客户问题.. iOS应用程序工作正常。没有问题。只有Android系统。
Seems like port issues. I am not sure anymore if this is a server issue or a client issue.. iOS app works fine. no issues. Only Android.
我试过：
System.setProperty("http.keepAlive", "false");
我试图设置一个HTTP头连接：关闭没有什么作品...
任何想法是AP preciated ...
Any idea would be appreciated...
推荐答案
确切有同样的问题，并花了很多时间来调查，没有任何帮助，包括重用连接的旗帜，试图还禁用tcp_timestamp，tcp_tw_reuse，tcp_tw_recycle并启用作为这里建议为应用程序虚拟机的安全模式：
Had exact the same issue and spent a lot of time investigating, nothing helped including "Reuse connection" flag, tried also to disable tcp_timestamp, tcp_tw_reuse, tcp_tw_recycle and enable vm safe mode for the app as suggested here:
- https://github.com/square/okhttp/issues/903
- https://github.com/square/okhttp/issues/1037
- https://github.com/square/okhttp/issues/1518
- https://github.com/square/okhttp/issues/903
- https://github.com/square/okhttp/issues/1037
- https://github.com/square/okhttp/issues/1518
但都在静脉。
进一步，很奇怪的是，我有我做完全一样的，以追查问题，一台服务器没有任何问题。
Further more, the very strange thing was that I had two different instances/servers which I made exactly the same in order to track down the issue and one server didn't have any issues.
那么到底：
实例重启解决问题的连接。
（或只需要重新启动网络服务）
Instance reboot solved problem with connections. (or just need to restart networking service)
（三）我的服务器/实例管理
(c) My server/instance admin
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