We recently tried to upgrade Elasticsearch from 6.1-6.3 and we ran into an issue starting the service.
We got the error " Starting elasticsearch: /usr/share/elasticsearch/bin/elasticsearch-env: line 70: /etc/sysconfig/elasticsearch: Permission denied
It seems from some research that this was a common issue but there seems to be no fix for this. Any idea what can be causing this. We had to revert the upgrade since we were unable to to start the service. Any help would be greatly appreciated.