Tutorial 15: Node.js common Error 3: Connection lost: The server closed the connection.

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This error arises when you are trying to listen some other socket. it may be a external TCPSocket or it may be the connection to database server.
The connection is closed from other side a you are still trying to read data from it. In most cases it happens when you use halfOpen:true

You should be able to pinpoint the location of error with the help of above lines

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