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fix: workaround for zeromq connection bug #101

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fix: workaround for zeromq connection bug #101

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14 changes: 14 additions & 0 deletions lib/services/dashd.js
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Original file line number Diff line number Diff line change
Expand Up @@ -802,12 +802,26 @@ Dash.prototype._initZmqSubSocket = function(node, zmqUrl) {
var self = this;
node.zmqSubSocket = zmq.socket('sub');

log.info(`ZMQ opening socket to '${zmqUrl}'`);

// workaround for https://github.com/zeromq/zeromq.js/issues/574
var tcpTimeout = 5 * 1000;
var timeout = setTimeout(function () {
// neither accepting nor rejecting - either invalid or firewalled (DROP)
log.error(`ZMQ address '${zmqUrl}' cannot be reached`);
process.exit(1);
}, tcpTimeout);

node.zmqSubSocket.on('connect', function(fd, endPoint) {
log.info('ZMQ connected to:', endPoint);
clearTimeout(timeout);
timeout = null;
});

node.zmqSubSocket.on('connect_delay', function(fd, endPoint) {
log.warn('ZMQ connection delay:', endPoint);
clearTimeout(timeout);
timeout = null;
});

node.zmqSubSocket.on('disconnect', function(fd, endPoint) {
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