Currently I have a graylog server with Graylog v2.2.2.1 and Elastcisearch v2.3.3.1.
Now I need to upgrade Graylog server to Graylog v2.4.0 and I need to upgrade Elqasticsearch to v 5.6.3 accordingly.
My questing is Once I do the upgrade according to the above mentioned versions, will graylog raise any issue with index on existing indices. I want to keep my old index and indices as it is.
SO I need to know before go to the upgrade, Is above mentioned Graylog and elasticsearch versions are properly working without any issue with old indices.
Graylog 2.4.0 still works with Elasticsearch 2.x, so you don’t have to upgrade necessarily (although I’d recommend that).
This depends completely on your Elasticsearch cluster. If you’ve been using Elasticsearch 1.x before (i. e. Graylog 1.x), you have to convert your old indices first.
@jochen
I developed my Graylog server only using Graylog v2.2.2.1 and Elastcisearch v2.3.3.1. Not other older version. All elasticsearch indexes are under 2.3.3.1 version.
So If I upgrade both graylog and elasticsearch versions together as I mentioned earlier, will it affect to the existing indexes and indices ?