How to keep socket connection alive in android

Android provides many ways of creating and managing threads, and third-party libraries exist to make that even easier. However, with so many options, choosing the right approach can be quite confusing. In this article, Toptal Freelance Software Engineer Eliran Goshen discusses some common scenarios in Android dev... Apr 13, 2015 · It was silent connections but to keep the connections alive, if you are behind a elastic load balancer, you need to check the idletimeout setting on the loadbalancer and send a ping before that time expires. If not the load balancer will start to drop your connections. 当 HttpURLConnection 是 "Connection: close " 模式,那么关闭 inputStream 后就会自动断开连接。 当 HttpURLConnection 是 "Connection: Keep-Alive" 模式,那么关闭 inputStream 后,并不会断开底层的 Socket 连接。这样的好处,是当需要连接到同一服务器地址时,可以复用该 Socket。 a) Decrease the time default value for tcp_keepalive_time connection from 7200 seconds to 60 seconds. This determine the time of connection inactivity after which the first keep alive request is sent. Parameter below shows that the TCP will begin sending keepalive null packets after 1 minute. net.ipv4.tcp_keepalive_time = 60 The only way to reliably test for disconnection is to have the client periodically send data across the connection. This is called a “heartbeat” as it tells you the client is still alive. Hi Locky, Do you think the correct behavior would be to the connection be maintained even without data transfer? I've tried it with Sony Z2 and M2 Aqua, both running Android 4.4.4 and a Galaxy S"x" with Kitkat (I dont remember the exact model and Android version, and I'm not with the phone here right now). To enable Keep-Alive connections in Apache 1.2 and later, set KeepAlive On. For HTTP/1.0 clients, Keep-Alive connections will only be used if they are specifically requested by a client. In addition, a Keep-Alive connection with an HTTP/1.0 client can only be used when the length of the content is known in advance. A new TCP connection need to be established for another HTTP request/response. For WebSocket, the HTTP connection is upgraded using standard HTTP Upgrade mechanism and client and server communicate over that same TCP connection for the lifecycle of WebSocket connection. Lean protocol: HTTP is a chatty protocol. Making our way through our in-depth Java Exception Handling series, today we’ll be going over the SocketTimeoutException.As you may suspect based on the name, the SocketTimeoutException is thrown when a timeout occurs during a read or acceptance message within a socket connection. 301 Moved The document has moved here. The Android Debug Bridge (ADB) is a versatile command line tool that lets you communicate with and control an Android-powered device over a USB link from a computer. Mar 15, 2016 · Sockets are the basis for all connections over the internet. They are the end pieces which both a client and server terminate a connection with. Low level sockets are essentially a stream of bytes. You write to one socket, and it appears byte for byte on the other socket’s read buffer. But I just got a Galaxy Tab 4, and I cant open multiple sockets for some reason. Always makes the first connection, then fails with the rest. and the TCP performance of the first socket is overall slow. edit: increasing socket timeout to 2500ms helped a bit. A far cry from my consistant socket of 500ms on my Tab 2.Jan 15, 2019 · Select the Allow remote computers to connect checkbox to enable the setting; Restart Fiddler in order the changes to take effect; Fiddler is now listening on port 8888 (this is the default port, you can change it from the setting above). Setting up the Android Device. Once Fiddler is listening, we should use it as a proxy in Android. Open the WiFi menu. We know that TCP has a connection detection mechanism, that is, if the specified time (also called keep-alive, see this article, usually 2 hours) no data transmission, will send a Keep- The serial number used is the serial number of the last byte of the last message that was issued. f the receiver receives this data, send back a TCP ACK ... To keep a socket connection alive, just don't close it. I would say that to keep a connection open, just don't close it, but "alive" implies a responding peer, wouldn't you agree? Apart from that, I know of at least one TCP stack that implements an idle timeout, which closes the idle connection after a configurable time.Once you get the app installed, the experience is the same across both Android and Android TV. However, we find it much better suited to the big screen than, say, a 5.8-inch phone, like the ... Jun 06, 2016 · socket.getInputStream ())); ) {. String inputLine, outputLine; GameProtocol gp = new GameProtocol (); outputLine = gp.processInput (null); //System.out.println (outputLine); //out.println (outputLine); while ( (inputLine = in.readLine ()) != null) {. //System.out.println (outputLine); The interval specified is in seconds, so you can provide some fine tuning. If your stateful firewall has a 5 minute idle timeout, then 60 or 120 seconds is enough to keep the connection open. It's one of the ways I keep my ssh sessions through my home router open. – Darren Hall Dec 2 '09 at 21:16 Save it to some file and quickly run it before you minimize the window or move away from it. It will keep printing the current time stamp on the server and keeps your connection alive as long as the connection is not dropped by any other reason. When you get back to that terminal, just hit CTRL+C and keep working.
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Internal. instance. put (connectionPool, result); // If another multiplexed connection to the same address was created concurrently, then // release this connection and acquire that one. if (result. isMultiplexed ()) {socket = Internal. instance. deduplicate (connectionPool, address, this); result = connection;}} closeQuietly (socket); eventListener. connectionAcquired (call, result); return result;}

Feb 08, 2016 · Right-click on InternetSettings > New > DWORD. Name the new DWORD in the right pane as KeepAliveTimeout, and give it a value 120000 in Decimal. Exit the Registry Editor and restart Internet ...

Use HAProxy to load balance 300k concurrent tcp socket connections: Port Exhaustion, Keep-alive and others. 25 Replies. I’m trying to build up a push system recently. To increase the scalability of the system, the best practice is to make each connection as stateless as possible.

Jun 07, 2019 · Sockets in computer networks are used to establish a connection between two or more computers and used to send data from one computer to another. Each computer in the network is called a node. Sockets use nodes’ IP addresses and a network protocol to create a secure channel of communication and use this channel to transfer data.

May 30, 2020 · Make sure your apps don't sleep in the background on Samsung phones. If you have a Samsung device running One UI, Samsung provides another way to control sleeping background apps.

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On my Android (6.0.1) I used to be able to use the "Keep-Alive" widget, which would show on the upper left of my notifications bar. I don't mean the widget from "Widgets" drawer which shows on the desktop, but the one I click on inside the app itself, at the very bottom of the settings page on the app.

Daily Script - Movie Scripts and Movie Screenplays Bind the socket to an address using the bind() system call. For a server socket on the Internet, an address consists of a port number on the host machine. Listen for connections with the listen() system call. Accept a connection with the accept() system call. This call typically blocks the connection until a client connects with the server. Jan 04, 2012 · Plug the iPhone into your laptop with the USB sync cable and use the connection through that, instead of using WiFi or Bluetooth. This should keep the connection active for as long as your laptop is awake. It should also be the fastest in terms of throughput, and will also keep your iPhone charged without having to plug it in to an outlet. Socket (How): Socket represents the connection between two hosts and defines how to connect. So, if you put all three together, Socket may be viewed as a link that is hooked to the Port of the IP address of the hosts where TCP or UDP define the rules of the game. A Quick Example of Client/Server Interaction with UDP 当 HttpURLConnection 是 "Connection: close " 模式,那么关闭 inputStream 后就会自动断开连接。 当 HttpURLConnection 是 "Connection: Keep-Alive" 模式,那么关闭 inputStream 后,并不会断开底层的 Socket 连接。这样的好处,是当需要连接到同一服务器地址时,可以复用该 Socket。