I’ve inherited a single node Graylog server that I’d like to start updating. I’m new with this product so I am proceeding very cautiously. We are currently running v2.1.2 and this is a manual rpm install on CentOS.
I have only found these two pages:
This first page basically states that all I have to do is update the repository and then “yum install graylog-server” (the 2nd page states that after the update some of my streams and alerts may need reconfiguration).
Is it really that easy? Is there anything else I need to be aware of? Should I go from 2.1 to 2.2 then 2.3 etc… or can I update from 2.1 to 2.4? Will all of my configuration settings will remain in place? Do I need to stop the graylog-server service, or/and elasticsearch & mongodb before the yum? During the update will any log entries be lost or will Graylog/ES continue to capture everything?
Thanks in advance