Problems in apache,event mode

In

apache,event mode, 8 processes are started. Set to perform 10000 automatic recreations. On the next day, there were only two hundred and three processes.

is this the number of processes that apache thinks there are not enough tasks and automatically shrinks?

configuration is as follows:

<IfModule mpm_event_module> 
StartServers 8 
MinSpareThreads 75 
MaxSpareThreads 712 
ThreadsPerChild 64 
ServerLimit 32 
MaxRequestWorkers 2048 
MaxConnectionsPerChild 10000 
</IfModule>
Feb.26,2021
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-64f5-1c1bb04-332b1.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1c1bb04-332b1.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?