What should I do when I can’t access the RTM Web GUI?

If you cannot access the RTM web GUI, check for an error message in /etc/httpd/logs/error_log.

"PHP Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 523800 bytes) in RTM_TOP/cacti/lib/adodb/adodb.inc.php on line 207". A PHP thread is running out allowed memory.

1. Check the PHP version, paths for configuration files, and httpd version.

   php -v 
   php --ini 
   httpd -v

2. In many cases, you can double the original "memory_limit" value in /etc/php.ini

   memory_limit = <value>M

3. Restart the httpd service:

   service httpd restart

4. Restart the RTM server host.