Why does the server socket.end () report an error after it is called?

Server

let socket = new Net.Socket({allowHalfOpen: true});
socket.connect(10010);

Why does the server report an error: Error: read ECONNRESET

May.09,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1eb3981-2469.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1eb3981-2469.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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