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[Daniel <1988224@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Since updating the LTS server version from 20.04 to 22.04, I've had
problems with apache 2.4.52 (2.4.52-1ubuntu4.1) in mpm_event mode. The
child processes for apache fail to start after a period of time. The
webserver is unreachable. In netstat there are many CLOSE_WAIT and
ESTABLISHED entries.

The error_log says:

[Tue Aug 30 12:59:38.451188 2022] [http2:warn] [pid 687247:tid
139925644072832] AH10291: h2_workers: cleanup, 1 idle workers did not
exit after 5 seconds.

# ps xau |grep apache
root         899  0.0  0.4  86712 40116 ?        Ss   Aug25   0:33 /usr/sbin/apache2 -k start
www-data     901  0.0  0.0   3736   156 ?        Ss   Aug25   0:15 /usr/bin/htcacheclean -d 120 -p /var/cache/apache2/mod_cache_disk -l 300M -n
www-data  687242  0.0  0.3  87020 30104 ?        S    02:00   0:00 /usr/sbin/apache2 -k start

Other processes are gone.

The problem is known and already fixed in 2.4.53, see:
https://bz.apache.org/bugzilla/show_bug.cgi?id=65769

I haven't found anything that this problem has already been fixed in the
ubuntu version of apache. That's why I'm making this bug report.

Many Thanks.

** Affects: apache2 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apache2

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https://bugs.launchpad.net/bugs/1988224

Title:
  apache stuck and child processes fail to start

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