Upgrade ES 6 Index to 7 Without Reindex

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1

I know this sounds obvious, but I need to ask to be sure.

I have an ES 6 index in an ES 7 instance. I know it's backward compatible, but is there a way or upgrading the index to an ES 7 schema without reindexing due to the extensive time it took to create it in the first place?

Thanks.

2

Have you run the upgrade assistant in Kibana to see if it flags any issues with the index?

3

I should clarify, this is meant to be a more general question about the scenario so I couldn't say for sure what the upgrade assistant may say, but I was curious if there was a way of bringing an ES 6 index to a version 7 index without doing a full reindex.

4

It depends.

If there are no mapping changes needed then you should be fine to upgrade and there will be no impact. You should be ok to go from 6 to 7, but you probably/might need to reindex when you want to go from 7 to 8.

5

Thanks. I'm very new to this. What would be involved in upgrading the index? I understand that ES 7 supports an ES 6 index, but how would I upgrade the index to 7?

6

Just upgrade Elasticsearch and you will be ok for that.

7

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