ES upgrade from 1.7.1 to 2.4

Elastic Stack Elasticsearch
1

Hi, I'm looking to upgrade from 1.7.1 to 2.4 and then eventually to 5.X. Since 2.4 now supports dot characters in it's indices, can I assume that I can upgrade directly and keep my indices intact?

I've searched the forum and can see people have done a 1.7.X to 2.4, but not sure if they had ever used dot's in their indices.

Thanks

2

https://www.elastic.co/guide/en/elasticsearch/reference/5.4/setup-upgrade.html should guide you.

But yes, you can go from 1.7 to 2.4.

3

You will however need to reindex data before moving to 5.x as indices created in 1.x can not be read by 5.x. You may therefore be better off reindexing into a new 5.x cluster directly.

4

Thanks all