How to solve the problem that socket communication always fails? Socket persistent connection

phenomenon?
I have received the data, but after receiving the data, socket is closed. I can"t send a heartbeat packet every 3 seconds. The server said that when I sent me the data, I turned off socket, but I didn"t close it. I don"t know why.

socket java.net.SocketException: Broken pipe (, this is an error)

Mar.06,2021
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-64f5-1bf232a-31db8.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1bf232a-31db8.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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