How to use redis? in the callback function when publishing subscriptions

after each subscription to the content, the Redis object is released, and after processing the subscription information, the Redis is connected again.

  1. is that so?
  2. how to use redis? in callback function
Sep.10,2021

closure passes parameters

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-64f5-1b2b2d7-2a7ba.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b2b2d7-2a7ba.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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