Apache fails to start: "(22)Invalid argument: mod_fcgid: can't lock process table in PM"

Refers to:

  • Plesk 11.0 for Linux

Created:

2016-11-16 13:12:40 UTC

Modified:

2016-12-21 20:12:00 UTC

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Apache fails to start: "(22)Invalid argument: mod_fcgid: can't lock process table in PM"

Symptoms

Apache cannot start:

s17231139:~ # service apache2 start
redirecting to systemctl
Job failed. See system logs and 'systemctl status' for details.

' error_log ' contains the following error:

[Mon Mar 03 13:06:23 2014] [emerg] (22)Invalid argument: mod_fcgid: can't lock process table in PM, pid 8770
[Mon Mar 03 13:06:24 2014] [error] mod_fcgid: fcgid process manager died, restarting the server
[Mon Mar 03 13:06:24 2014] [notice] SIGHUP received. Attempting to restart

Cause

Obsolete mod_fcgid package. The issue described in https://issues.apache.org/bugzilla/show_bug.cgi?id=50309

Resolution

Update mod_fcgid package

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