log   [18:51:30.985] [error][client][connection] Error: socket hang up
   at TLSSocket.<anonymous> (_tls_wrap.js:822:25)
   at emitOne (events.js:101:20)
   at TLSSocket.emit (events.js:188:7)
   at Socket._handle.close (net.js:498:12)
   at Socket.g (events.js:291:16)
   at emitOne (events.js:101:20)
   at Socket.emit (events.js:188:7)
   at TCP._handle.close [as _onclose] (net.js:498:12)