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Adding a socket handler for keep TCP connection #3422

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Dec 22, 2021
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6 changes: 6 additions & 0 deletions lib/adapters/http.js
Original file line number Diff line number Diff line change
Expand Up @@ -313,6 +313,12 @@ module.exports = function httpAdapter(config) {
reject(enhanceError(err, config, null, req));
});

// set tcp keep alive to prevent drop connection by peer
req.on('socket', function handleRequestSocket(socket) {
// default interval of sending ack packet is 1 minute
socket.setKeepAlive(true, 1000 * 60);
});

// Handle request timeout
if (config.timeout) {
// This is forcing a int timeout to avoid problems if the `req` interface doesn't handle other types.
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