"Unable to open logs" in apache error log debian

apache-2.2 httpd apache-2.4

Solution 1:

Higher file descriptor limit in /etc/apache2/envvars solved the issue

APACHE_ULIMIT_MAX_FILES='ulimit -n 65536'

Related

How do I set an O365 user as a mailing list owner, but not a member?
Dereference symbolic link in OS X?
Truecrypt: File vs Device hosted encryption
Most significant server outages in the past decade
PHP installation on IIS: ISAPI or CGI?
HTTPS vs. VPN for communication between business partners?
one-time PXE boot from Linux on HP Proliant hardware
Bash: Put a job in the background and then tail the log
Securing power cables
Ubuntu server eth0 renamed to eth1
How to convert a really big HTML file to PDF in Windows [closed]
pfSense Firewall or Linksys/Cisco router for small offices