Nov 09, 2018 · Keep alive is enabled using the “Connection: Keep Alive” HTTP header. When this is not enabled your server returns a “connection: closed”. In order to take advantage of the feature you will need to have access to certain files.

If a plug-in makes external web requests and is trying to use KeepAlive on a closed connection, the plug-in will ultimately fail to execute the web request. If the plug-in is registered: Synchronously, users may experience: Unresponsive model-driven apps An application can request that a TCP/IP provider enable the use of keep-alive packets on a TCP connection. The default is that the use of keep-alive packets on a TCP connection is disabled. The default settings when a TCP socket is initialized sets the keep-alive timeout to 2 hours and the keep-alive interval to 1 second. Keep-Alive: Persist: Connection: Keep-Alive, Persist. to an origin server (but NOT to a proxy). This allows it to request a persist connection from either an HTTP/1.1 or HTTP/1.0+keepalive server without knowing in advance what the server type is. Jul 20, 2020 · Of course, this example relies on the server's Keep-Alive timeout. To make sure the connections don't die before being re-used it is recommended to configure the client with a Keep-Alive strategy (See Example 5.1.). 7. Configuring Timeouts – Socket Timeout Using the Connection Manager 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 Connect to your account and monitor the connection. If it stil drops, gradually decrease the keepalive interval until the connection is stable. Linux and Mac OS X operating systems. On Linux and Apple Mac OS X operating systems, the ~/.ssh/config file enables you to specify many SSH settings, including those that keep alive an SSH connection

Aug 29, 2015 · When Keep-Alive is turned on the web server will return a HTTP-Header to the web browser saying to keep the connection alive, and how long for. Connection:Keep-Alive Keep-Alive:timeout=5, max=100 This means allow the connection to be kept alive, for 5 seconds and for a maximum of 100 resources.

If a plug-in makes external web requests and is trying to use KeepAlive on a closed connection, the plug-in will ultimately fail to execute the web request. If the plug-in is registered: Synchronously, users may experience: Unresponsive model-driven apps

Aug 01, 2005 · yes, but what does having a connection persist have to do with sending a select * from dual ? mod_plsql -- keeps the connection. mod_plsql -- implements a connection pool for itself mod_plsql -- does *not* send a probe sql statement every N seconds to "keep alive" keep the connection, just DON'T DO anything on it until you need to.

Um pequeno adendo, desde o HTTP/1.1 conexões são persistentes por padrão, isso é, a não ser que o cliente seja HTTP/1.0 não há grandes motivos para enviar o header Connection: keep-alive para o servidor. – Anthony Accioly 13/01/17 às 17:45 The situation resolves itself when A tries to send data to B over the dead connection, and B replies with an RST packet, causing A to finally to close the connection. Keepalive can tell you when another peer becomes unreachable without the risk of false-positives.