Lambda Connection Issue

Hi there

The error "Connection reset by peer" implies that the Downstream Service (the one that the Lambda Function is making a call to) has abruptly aborted the connection in the midst of the connection. The "java.io.IOException: Connection reset by peer" is also a type of IO exception.

It is a response from the server that it is not going to process this request. When the application establishes a TCP connection with a peer in the network, if that peer closes the connection on the far end, it will throw "java.io.IOException: Connection reset by peer in Java".

The most common reasons for the "java.io.IOException: Connection reset by peer in Java" error:

• The Downstream Service (the one that the Lambda Function is making a call to) has abruptly aborted the connection in the middle of a transaction.
• The Downstream Service was unavailable.
• There can be a problem with the PUT, POST, and GET requests.

The reasons are not limited to the above. Those errors need to be investigated from the perspective of the Downstream Service.