Create a new index from existing one and add new fields to the new index

Elastic Stack Elasticsearch
1

Hi,
I am creating an index on elastic search which has fields appgroupid, appid.
But i need to add appgroupname and appname fields to this index.

I have an hashmap of appgroupid to appgroupname and appgroupid to appgroupname.

Once the first index is created, is there a way to create another index from index1 and add extra fields, whose values are derived from the hashmap based on approgroupid and appid.

Thanks,
Divya

2

You might want to check out the following blog post on reindex and update_by_query:

Hope this helps,
Isabel

3

Thanks Isabel for the pointers. _reindex feature is in 2.3.0 release. Our current system is using 2.2.0, what are the options in 2.2.0 release?

4

Nothing internal, you would need to write code to handle it externally.