Can we give parent/child relation ship between different indexes

Elastic Stack Elasticsearch
1

Hi,
I would like to give parent/ child relationship between three different indexes,
where indexes are index1, index2, index3 with different types in those indexes..
May I know is it possible???

2

No you cannot.

Needs to be done in the same index, and specifically, in the same shard.

3

How to know that my data is in a particular shard? and how can I keep in the same shard???????????

where my settings having following information regarding shards as shown:

"number_of_shards": "5",
"version": {
"created": "1050299"
}

4

Wanting to have parent/child relations between indexes is, I think, a smell of a bad data model. It looks to me you are storing different entities in different locations. Perhaps you should aggregate those entities together.

5

With regard to your routing question, see https://www.elastic.co/guide/en/elasticsearch/guide/current/indexing-parent-child.html

6

Hi Patrick,
Then what about the shards as Mark mentioned???? May I know what exactly the shards do???

7

How can I maintain the data in the same shard and how to know that in which shard my parent data is stored..??????

8

@warkolm and @PatrickKik Thanks for your reply, and I came to know what exactly the data need to be in same shard. This helps me to sort the problem.

Thank you..

9

And can we have more than one parent in a child type???

10

You can have one parent per child. It saves you the horrors of conflicting multiple inheritance.

11

Okay Thank you Patrick..