Fail on start splunk after the upgrade of Splunk Enterprise Security from v4.7.0 to 5.3.1.

After upgrade to Splunk Enterprise Security v 5.3.1, fail on startup with the following error: [root@splunk02 bin]# ./splunk start Splunk> Another one. Checking prerequisites... Checking http port [8000]: open Checking mgmt port [8089]: open Checking appserver port [127.0.0.1:8065]: open Checking kvstore port [8191]: open Checking configuration... Done. Checking critical directories... Done Checking indexes... Problem parsing indexes.conf: Cannot load IndexConfig: stanza=perfmon Required parameter=homePath not configured Validating databases (splunkd validatedb) failed with code '1'. If you cannot resolve the issue(s) above after consulting documentation, please file a case online at http://www.splunk.com/page/submit_issue