For projects deployed on lnmp, if you don't click on the page for a long time, it will be very slow to click again.

I built a lnmp test environment locally and deployed the wordpress project. Why did I not visit it for a long time? when I clicked on the page again, I would wait dozens of seconds to return the data, and then each click would be faster again. Wait for more than ten minutes, request the page again, and wait for dozens of seconds to respond. What"s going on with this?

May.13,2021

see php slow log

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-64f5-1b3bcd6-2c2dc.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3bcd6-2c2dc.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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