Elasticsearch Java: Root type mapping not empty after parsing

Question

I'm trying to index a document in elasticsearch using the following mapping:

{"thread": {"properties":{"message":{"type": "nested", "properties": {"message_id": {"type":"string"}, "message_text":{"type":"string"}, "message_nick":{"type":"string"}}}}}}

Then using this to add the mapping in Java:

CreateIndexRequestBuilder indexRequest = client.admin().indices().prepareCreate(INDEX).addMapping("message", mapping);

But I am getting the following error:

Caused by: org.elasticsearch.index.mapper.MapperParsingException: Root type mapping not empty after parsing! Remaining fields:   [mappings : {thread={properties={message={properties={message_text={type=string}, message_nick={type=string}, message_id={type=string}}, type=nested}}}}]

Can anyone let me know how I'm getting this error?

do you want to store a whole thread as a single document in elasticsearch? It seems that you have a mapping for a "thread" type, but you are trying to create a mapping for the "message" type. — Vladislav Lezhnin
– Vladislav Lezhnin, Commented Mar 27, 2015 at 15:45
I'm trying to add mapping to the "message" type. Ultimately I wanted messages to be nested to I can search for occurrences of a keyword within the thread field but also find if any messages hold that keyword also. Can nested documents help me do this? — Daniel Buckle
– Daniel Buckle, Commented Mar 29, 2015 at 16:26

Scott MacRitchie · Accepted Answer · 2015-05-15 00:32:12Z

2

I don't know the details for your exact mapping, but I had a similar problem and just realized that when you add mappings via the java API, you need to remove the json object right below the root.

For example, the mapping I tried to add was:

{"mappings":{"_default_":{"date_detection":false,"dynamic_templates":[{"dates":{"match":".*Date|date","match_pattern":"regex","mapping":{"type":"date"}}}]}}}

The above added fine using the REST API, but failed using the Java API with the same error you mentioned.

I removed the "mappings" json object and it fixed the issue. Final mapping that worked was:

{"_default_":{"date_detection":false,"dynamic_templates":[{"dates":{"match":".*Date|date","match_pattern":"regex","mapping":{"type":"date"}}}]}}

answered May 15, 2015 at 0:32

Scott MacRitchie

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1 Comment

user3301565 Over a year ago

One and a half Year old but you still made my day. Same belongs to the Javascript API - Thanks!

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