I have upgraded to v8.8.1.0 from v7.1.1.0 and I have found that I can't view the system logs in the Admin Console. The View button is not enabled. The role settings for the Admin User I am using should allow it to be used.
How do I enable that?
You don't see that view logs button enabled because of a new default level of security introduced in v8.8.0.0.
There are other features disabled by default after the installation and a way to define "permitted locations" for file uploads. These were all introduced to tighten security.
Take a look at the https://www.konakart.com/docs/AdminAndConfiguration.html#AdmininstrationAppStartingLockdown (https://www.konakart.com/docs/AdminAndConfiguration.html#AdmininstrationAppStartingLockdown) for details.
For the View logs button to become enabled you would have to set:
konakart.api.getFileContents.enabled = true
(in webapps/konakartadmin/WEB-INF/classes/konakartadmin.properties)