I've installed a Splunk enterprise 6.5.2 and some Splunk applications.
It's a while that when I try to click on refresh button ( splunkserver:port/debug/refresh ) after a couples of minutes the web interface is not reachable anymore and I've to restart splunk.
In splunk.log files there are some errors related to the Splunk applications installed but they seem to be not important.
Also I see the following:
ERROR KVStoreBulletinBoardManager - KV Store changed status to failed. KVStore process terminated.
05-04-2017 08:39:23.487 +0200 ERROR KVStorageProvider - An error occurred during the last operation ('saveBatchData', domain: '2', code: '5'): Failed to connect to target host: 127.0.0.1:8191