What happens to data in an existing type if we update the mapping to specify 'path's for _id and _routing

Elastic Stack Elasticsearch
1

We are using ES 1.3.2.
We have a need to specify custom id and routing values when indexing.
We've been doing this using Java APIs, however we would now like to update
the mapping to specify 'path's for _id and _routing.

The question we have is:

  1. Since this type already has a huge number of documents, can we change
    the mapping? When we tried it, we got a '"acknowledged": true' response,
    but it doesn't seem to be working when we tried indexing.
  2. In case there is a way to achieve this, will it affect only the new
    documents being indexed?

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2

Any ideas on this?

On Monday, October 27, 2014 3:03:16 PM UTC+5:30, Preeti Raj - Buchhada
wrote:

We are using ES 1.3.2.
We have a need to specify custom id and routing values when indexing.
We've been doing this using Java APIs, however we would now like to update
the mapping to specify 'path's for _id and _routing.

The question we have is:

  1. Since this type already has a huge number of documents, can we change
    the mapping? When we tried it, we got a '"acknowledged": true' response,
    but it doesn't seem to be working when we tried indexing.
  2. In case there is a way to achieve this, will it affect only the new
    documents being indexed?

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3

You can update a mapping (adding new fields or new sub fields)
Old documents won't be updated.

A common best practice is to reindex your data.

About specific fields like _routing and _id, I think that updating the mapping for them won't work so it will require to reindex.
Never tested it though.

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David Pilato | Technical Advocate | elasticsearch.com
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Le 28 octobre 2014 à 08:13:04, Preeti Raj - Buchhada (pbuchhada@gmail.com) a écrit:

Any ideas on this?

On Monday, October 27, 2014 3:03:16 PM UTC+5:30, Preeti Raj - Buchhada wrote:
We are using ES 1.3.2.
We have a need to specify custom id and routing values when indexing.
We've been doing this using Java APIs, however we would now like to update the mapping to specify 'path's for _id and _routing.

The question we have is:

  1. Since this type already has a huge number of documents, can we change the mapping? When we tried it, we got a '"acknowledged": true' response, but it doesn't seem to be working when we tried indexing.
  2. In case there is a way to achieve this, will it affect only the new documents being indexed?

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