Do you need to create a connection every time you use redis in nodejs?

when nodejs uses redis, it is necessary to create one client at a time and close it after using it! Or create it only once, keep a persistent connection with one client, each time, and do not close

Redis nodejs-express node.js
May.25,2021

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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-64f5-1b2c40f-2baf6.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b2c40f-2baf6.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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