# Elasticsearch 6.2.4 Preparing for removal of mapping types **URL:** \ **Category:** Elasticsearch\ **Created:** [May 31, 2018, 1:43pm UTC](https://discuss.elastic.co/t/elasticsearch-6-2-4-preparing-for-removal-of-mapping-types/134064 "2018-05-31T13:43:46Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![ld\_pvl](https://avatars.discourse-cdn.com/v4/letter/l/cdc98d/32.png) [@ld\_pvl](https://discuss.elastic.co/u/ld_pvl)\ **Post date:** [May 31, 2018, 1:43pm UTC](https://discuss.elastic.co/t/elasticsearch-6-2-4-preparing-for-removal-of-mapping-types/134064/1 "2018-05-31T13:43:46Z")
Hi Team, Could you please help to clear a confusion I have with regards to the future removal of mapping types? According to [the documenation](https://www.elastic.co/guide/en/elasticsearch/reference/current/removal-of-types.html#_schedule_for_removal_of_mapping_types): - the `_default_` mapping type is deprecated and will be removed in 7.x - the preferred type name is `_doc` Given the above, I am in the process of changing the templates. However, I noticed that when Logstash sends data to Elasticsearch, the type is `doc` and not `_doc` by default (I did not set any specific type in logstash.conf). I verified that the type in my index is of type `doc` because `GET {index}/_doc/{id}` does not work and this `GET {index}/doc/{id}` works. So I assuming, in my templates I should define the mapping for `doc` type and not `_doc` even though in the above documentation the recommended type is `_doc`? Cheers, ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [May 31, 2018, 1:56pm UTC](https://discuss.elastic.co/t/elasticsearch-6-2-4-preparing-for-removal-of-mapping-types/134064/2 "2018-05-31T13:56:48Z")
I think that the rest of the stack is going to be updated to use \_doc indeed. I did not check if it has been done or not yet and is ready for 6.3. ---
**Author:** ![ld\_pvl](https://avatars.discourse-cdn.com/v4/letter/l/cdc98d/32.png) [@ld\_pvl](https://discuss.elastic.co/u/ld_pvl)\ **Post date:** [May 31, 2018, 2:09pm UTC](https://discuss.elastic.co/t/elasticsearch-6-2-4-preparing-for-removal-of-mapping-types/134064/3 "2018-05-31T14:09:14Z")
If suddenly the stack switches from `doc` to `_doc`, I think it might cause some problems, because: - I used to use `_default_` in templates which basically applies the mappings regardless of type. - Now, I am switching to `doc` because that is what stuff from Logstash is mapped to. - In the future, Logstash switches to `_doc` cos the stack switched to `_doc` and suddenly my mappings which are defined only for `doc` type stop being applied 😓. Is what I'm thinking above possible? If it is possible, does that mean to prevent the above problem from happening, I should define two exactly the same set of mappings one for `_doc` and one for `doc` - basically in anticipation of the stack switch from `doc` to `_doc`? ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [May 31, 2018, 2:22pm UTC](https://discuss.elastic.co/t/elasticsearch-6-2-4-preparing-for-removal-of-mapping-types/134064/4 "2018-05-31T14:22:40Z")
I think you can anticipate what will happen with: > My 0.05 cents. ---
**Author:** ![ld\_pvl](https://avatars.discourse-cdn.com/v4/letter/l/cdc98d/32.png) [@ld\_pvl](https://discuss.elastic.co/u/ld_pvl)\ **Post date:** [May 31, 2018, 2:43pm UTC](https://discuss.elastic.co/t/elasticsearch-6-2-4-preparing-for-removal-of-mapping-types/134064/5 "2018-05-31T14:43:53Z")
Thanks for the link. So if I understood the github issue correctly then `_doc` will be used going forward for Logstash. So unless I change my logstash.conf to explicitly set documents sent by Logstash to retain the old type `doc`, it will be changed to `_doc`. Therefore, I will now have old indexes with type `doc` and new indexes with type `_doc` which might or might not cause some subsequent problems. When 7.x it's gonna be adventurous 😄. ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [May 31, 2018, 3:19pm UTC](https://discuss.elastic.co/t/elasticsearch-6-2-4-preparing-for-removal-of-mapping-types/134064/6 "2018-05-31T15:19:46Z")
Should not be an issue hopefully. Worse case you can always use the reindex API to rename old doc type to \_doc type? ---
**Author:** ![ld\_pvl](https://avatars.discourse-cdn.com/v4/letter/l/cdc98d/32.png) [@ld\_pvl](https://discuss.elastic.co/u/ld_pvl)\ **Post date:** [May 31, 2018, 3:26pm UTC](https://discuss.elastic.co/t/elasticsearch-6-2-4-preparing-for-removal-of-mapping-types/134064/7 "2018-05-31T15:26:16Z")
Agreed, in the worst case, I would have to reindex. Thanks again! ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [June 28, 2018, 3:26pm UTC](https://discuss.elastic.co/t/elasticsearch-6-2-4-preparing-for-removal-of-mapping-types/134064/8 "2018-06-28T15:26:19Z")
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