Following this thread as well, as I have observed the same issue following an upgrade from 9.1.2 to 9.2.1 ... View more

I was seeing a similar issue to the Java out of bounds message yesterday, although it was accompanied by ERROR ExecProcessor - message from "/opt/splunk/etc/apps/TA-Akamai_SIEM/linux_x86_64/bin/TA-Akamai_SIEM.sh" Message : HTTP 503 -- KV Store initialization failed. Please contact your system administrator   If you see a similar error check $SPLUNK_HOME/var/log/splunk/mongod.log for indications of certificate errors: NETWORK [main] The provided SSL certificate is expired or not yet valid.   If you see the above error mentioned confirm that your server.pem certificate is still valid. Hope this is helpful or at least neutral for you! Good luck! ... View more