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I installed apache tomcat connector and configured all the settings successfully, httpd service also started, but while loading webpage , it is throwing 500 internal service error. In error log it is showing below error:

Permission denied: apr_global_mutex_lock(jk_log_lock) failed
Permission denied: apr_global_mutex_unlock(jk_log_lock) failed
Permission denied: apr_global_mutex_lock(jk_log_lock) failed
Permission denied: apr_global_mutex_unlock(jk_log_lock) failed

Installed apache connector version : 1.2.42

Installed httpd version : 2.4.28

Here is my httpd.conf file

LoadModule jk_module modules/mod_jk.so

JkWorkersFile  /usr/local/apache/conf/workers.properties

JkLogFile     logs/mod_jk.log
JkLogLevel    emerg
JkLogStampFormat "[%a %b %d %H:%M:%S %Y] "
JkOptions     +ForwardKeySize +ForwardURICompat -ForwardDirectories
JkRequestLogFormat     "%w %V %T %p %q %r %v %U"

I changed log level to info also, but still it isn't working.

Mohammed Abdullah
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  • Are you sure it's not a permission problem like the error says? Eg. that the file or directory permissions where the jg_log_lock resides is chowned to the user that is used to run httpd? – Jeroen Oct 18 '17 at 15:19
  • All the process was running though root only. So I don't think so there will be permission problem in folder access, Some thing to do with configurations I guess. – Mohammed Abdullah Oct 18 '17 at 15:31

1 Answers1

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I found solution after googling. Need to uninstall apache_ruid2 module in httpd server. The above module overrides permission. So once disable/uninstall the module, error got rectified.

Mohammed Abdullah
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