How to copy data of one specific shard (indices A) to another indices (indices B)?

I have to copy data of one specific shard (indices A) to another indices (indices B). How can this be done?

I don't believe you can extract it from one particular shard like that, unless you are using routing?

Can I re-index the data using a query to search for a specific shard from Indices A and insert it into Indices B?

Not unless you are using routing.

The size of each shard varies. I think we route data to specific shards.

If you know the routing keys used you might be able to do it that way.

As a test I can re-index by querying the source by shard id and verify if the data is going to the intended destination shard. @warkolm can you please let me know your opinion?

There is no such thing as a query by shard ID. The closest you would get would be to query by the routing key.

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.