Vue persistent connection socket.io

is there any document of the Great God meeting that can"t be found in detail? if so, tell me whether I have to write this method at the back end after I have finished the previous paragraph

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Sep.26,2021

  1. socket has nothing to do with Vue.
  2. generally, the server launches the socket server, front end as the socket of the socket client connection server. So there should be a socket server at the back end.
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-64f5-1bdbc09-3129b.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1bdbc09-3129b.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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