Jobs manager fails to load

SUMMARY

The job manager fails to load in the UI.

ISSUE

When trying to load the Job Manager in the UI, the following error is displayed:

A communication error occurred, and no response was received from the appliance.
This may be caused by a problem with the appliance or browser.  Ensure that the 
appliance is running and retry this operation.  You may also need to close and 
re-open the browser if the failure persists.

RESOLUTION

Increase the PHP memory limit (10.x)

1. SSH into the appliance.
2. Open php.ini in an editor:

   vi /etc/php.ini

3. Look for the "memory_limit" variable. Increase the value to 1024M:

   memory_limit = 512M

4. Restart apache services

   service httpd restart

Increase the PHP memory limit (pre-10.x)

1. SSH into the appliance.
2. Open bp.php in an editor:

   vi /var/www/html/api/includes/bp.php

3. Look for the "ini_set" variable, typically on line 2. Increase the value to 1024M:

   ini_set('memory_limit', '1024M');
   

NOTES

Considering the low free memory, swap memory needs to be monitored to make sure that other processes aren't getting killed.