# Changing default mapping **URL:** \ **Category:** Elasticsearch\ **Created:** [April 7, 2011, 10:42pm UTC](https://discuss.elastic.co/t/changing-default-mapping/4202 "2011-04-07T22:42:53Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![Manuel\_Benavides](https://avatars.discourse-cdn.com/v4/letter/m/3ab097/32.png) [@Manuel\_Benavides](https://discuss.elastic.co/u/Manuel_Benavides)\ **Post date:** [April 7, 2011, 10:42pm UTC](https://discuss.elastic.co/t/changing-default-mapping/4202/1 "2011-04-07T22:42:53Z")
I have the following default mapping: {"company" : {"item" : {"properties" : { "model" : {"type" : "string"}, "itemID" : {"type" : "string"}, "listingDate" : {"format" : "dateOptionalTime", "type" : "date"}, "condition" : {"type" : "string"}, "type" : {"type" : "string"}, "mainImage" : {"type" : "string"}, "percOff" : {"type" : "string"}, "size" : {"type" : "string"}, "username" : {"type" : "string"}, "category" : {"type" : "string"}, "title" : {"type" : "string"}, "price" : {"type" : "string"}, "msrp" : { "type" : "string"}, "description" : { "type" : "string"}, "brand" : { "type" : "string"}}}}} Then I go and change some values and I'll need to sort them and run queries with ranges on some of them with the following command: curl -XPUT '[http://localhost:9200/company/item/\_mapping](http://localhost:9200/company/item/_mapping)' -d ' {"geartrade":{"item":{"properties":{ "model":{"type":"string"}, "itemID":{"type":"integer"}, "listingDate":{"format":"dateOptionalTime","type":"date"}, "condition":{"type":"string"}, "type":{"type":"string"}, "mainImage":{"type":"string"}, "percOff":{"type":"float"}, "size":{"type":"string"}, "username":{"type":"string"}, "category":{"type":"string"}, "title":{"type":"string"}, "price":{"type":"float"}, "msrp":{"type":"float"}, "description":{"type":"string"}, "brand":{"type":"string"}}}}}' and then when I run to command I get this message {"ok":true,"acknowledged":true} But then I go and run again the get mapping command and I get the mapping unchanged I tried updating then mapping and then refreshing, even changing the mapping and stopping elastic search with no luck, any idea of why the mapping does not change? thanks a lot, ---
**Author:** ![AGuereca](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/aguereca/32/2357_2.png) [@AGuereca](https://discuss.elastic.co/u/AGuereca)\ **Post date:** [April 7, 2011, 10:55pm UTC](https://discuss.elastic.co/t/changing-default-mapping/4202/2 "2011-04-07T22:55:35Z")
Hi Manuel, Mapping is recommended to be defined at the time you are actually creating the index. Once the index is created either explicitly or because you insert a document (and a default mapping is created for you), very few settings are available of change. I'll suggest reviewing: [http://www.elasticsearch.org/guide/reference/api/admin-indices-create-index.html](http://www.elasticsearch.org/guide/reference/api/admin-indices-create-index.html) And [http://www.elasticsearch.org/guide/reference/mapping/](http://www.elasticsearch.org/guide/reference/mapping/) ~AG ---
**Author:** ![Clinton\_Gormley](https://avatars.discourse-cdn.com/v4/letter/c/50afbb/32.png) [@Clinton\_Gormley](https://discuss.elastic.co/u/Clinton_Gormley)\ **Post date:** [April 8, 2011, 7:57am UTC](https://discuss.elastic.co/t/changing-default-mapping/4202/3 "2011-04-08T07:57:11Z")
On Thu, 2011-04-07 at 15:42 -0700, Manuel Benavides wrote: > I have the following default mapping: > > {"company" : {"item" : {"properties" : { > "model" : {"type" : "string"}, > "itemID" : {"type" : "string"}, > ... trimmed ... > "description" : { "type" : "string"}, > "brand" : { "type" : "string"}}}}} > > Then I go and change some values and I'll need to sort them and run > queries with ranges on some of them with the following command: > > curl -XPUT '[http://localhost:9200/company/item/\_mapping](http://localhost:9200/company/item/_mapping)' -d ' > {"geartrade":{"item":{"properties":{ > "model":{"type":"string"}, Where does "geartrade" come from? Your mapping syntax is wrong. Also, you can only update a mapping if it doesn't conflict with the existing mapping. Otherwise, you need to create a new type with the new mapping (perhaps in a new index), and reindex your data with the new mapping. clint ---
**Author:** ![Barsk](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/barsk/32/13734_2.png) [@Barsk](https://discuss.elastic.co/u/Barsk)\ **Post date:** [April 8, 2011, 9:34am UTC](https://discuss.elastic.co/t/changing-default-mapping/4202/4 "2011-04-08T09:34:20Z")
I see a lot of references to "reindexing" the index in the mailing list. But I am a bit unsure of what that really means. For instance when you change the mappings for a type reindexing is needed. How do I do that? Is there an API method to call? Do I have to delete all contents and store again? Is reindexing the same as refresh? If not what is really refresh then? Well, a bit of a newbie questions, but I am sure easy to answer for anyone who knows... ---
**Author:** ![dpilato](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dpilato/32/2449_2.png) [@dpilato](https://discuss.elastic.co/u/dpilato)\ **Post date:** [April 8, 2011, 1:05pm UTC](https://discuss.elastic.co/t/changing-default-mapping/4202/5 "2011-04-08T13:05:02Z")
I think you have only to push again all your documents to elastic search. Elastic will update the mapping (or will use the new mapping if you have provided it to ES just before) and will update each document. So you don't have to delete anything. Hope this helps, David -----Message d'origine----- De : Kristian Jörg [[mailto:krjg@devo.se](mailto:krjg@devo.se)] Envoyé : vendredi 8 avril 2011 11:34 À : [users@elasticsearch.com](mailto:users@elasticsearch.com) Objet : Reindex & refresh? I see a lot of references to "reindexing" the index in the mailing list. But I am a bit unsure of what that really means. For instance when you change the mappings for a type reindexing is needed. How do I do that? Is there an API method to call? Do I have to delete all contents and store again? Is reindexing the same as refresh? If not what is really refresh then? Well, a bit of a newbie questions, but I am sure easy to answer for anyone who knows... ---
**Author:** ![Manuel\_Benavides](https://avatars.discourse-cdn.com/v4/letter/m/3ab097/32.png) [@Manuel\_Benavides](https://discuss.elastic.co/u/Manuel_Benavides)\ **Post date:** [April 8, 2011, 2:13pm UTC](https://discuss.elastic.co/t/changing-default-mapping/4202/6 "2011-04-08T14:13:05Z")
geartrade just the name of the index I changed it on the other places for testing and forgot that one on the console I am running it OK so the syntax is not wrong, I think then it just shouldn't say that the mapping was updated successfully as it does, I'll give it a try with a newly fresh index. On Fri, Apr 8, 2011 at 1:57 AM, Clinton Gormley [clinton@iannounce.co.uk](mailto:clinton@iannounce.co.uk)wrote: > On Thu, 2011-04-07 at 15:42 -0700, Manuel Benavides wrote: > > > I have the following default mapping: > > > > {"company" : {"item" : {"properties" : { > > "model" : {"type" : "string"}, > > "itemID" : {"type" : "string"}, > > ... trimmed ... > > "description" : { "type" : "string"}, > > "brand" : { "type" : "string"}}}}} > > > > Then I go and change some values and I'll need to sort them and run > > queries with ranges on some of them with the following command: > > > > curl -XPUT '[http://localhost:9200/company/item/\_mapping](http://localhost:9200/company/item/_mapping)' -d ' > > {"geartrade":{"item":{"properties":{ > > "model":{"type":"string"}, > > Where does "geartrade" come from? > > Your mapping syntax is wrong. > > Also, you can only update a mapping if it doesn't conflict with the > existing mapping. Otherwise, you need to create a new type with the new > mapping (perhaps in a new index), and reindex your data with the new > mapping. > > clint ---
**Author:** ![kimchy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kimchy/32/44952_2.png) [@kimchy](https://discuss.elastic.co/u/kimchy)\ **Post date:** [April 8, 2011, 6:23pm UTC](https://discuss.elastic.co/t/changing-default-mapping/4202/7 "2011-04-08T18:23:51Z")
Hey, Reindexing means just that, go over what you have indexed up until now and index it back. In terms of managing indices with elasticsearch, it is recommended to reindex into a fresh index the data (possibly using updated mappings), and then hot swap it using aliases. Getting the data to reindex can be done either by going to your where your master data is stored, and index it again (for example, from the database), or, get it from elasticsearch. Getting it from elasticsearch in an efficient manner will be possible in the upcoming version using the scan search type (already in master). Refresh is the process of making changes done (indexing for example) visible to search. It is not related to indexing. -shay.banon On Friday, April 8, 2011 at 4:05 PM, David Pilato wrote: > I think you have only to push again all your documents to Elasticsearch. > > Elastic will update the mapping (or will use the new mapping if you have > provided it to ES just before) and will update each document. So you don't > have to delete anything. > > Hope this helps, > David > > -----Message d'origine----- > De : Kristian Jörg [[mailto:krjg@devo.se](mailto:krjg@devo.se)] > Envoyé : vendredi 8 avril 2011 11:34 > À : [users@elasticsearch.com](mailto:users@elasticsearch.com) > Objet : Reindex & refresh? > > I see a lot of references to "reindexing" the index in the mailing list. > But I am a bit unsure of what that really means. > For instance when you change the mappings for a type reindexing is needed. > How do I do that? > > Is there an API method to call? > Do I have to delete all contents and store again? > Is reindexing the same as refresh? If not what is really refresh then? > > Well, a bit of a newbie questions, but I am sure easy to answer for anyone > who knows... ---
**Author:** ![kimchy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kimchy/32/44952_2.png) [@kimchy](https://discuss.elastic.co/u/kimchy)\ **Post date:** [April 8, 2011, 6:27pm UTC](https://discuss.elastic.co/t/changing-default-mapping/4202/8 "2011-04-08T18:27:37Z")
Can you provide a curl recreation? [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/help). On Friday, April 8, 2011 at 5:13 PM, Manuel Antonio Benavides Salazar wrote: > geartrade just the name of the index I changed it on the other places for testing and forgot that one on the console I am running it OK so the syntax is not wrong, I think then it just shouldn't say that the mapping was updated successfully as it does, I'll give it a try with a newly fresh index. > > On Fri, Apr 8, 2011 at 1:57 AM, Clinton Gormley [clinton@iannounce.co.uk](mailto:clinton@iannounce.co.uk) wrote: > > > On Thu, 2011-04-07 at 15:42 -0700, Manuel Benavides wrote: > > > > > I have the following default mapping: > > > > > > {"company" : {"item" : {"properties" : { > > > "model" : {"type" : "string"}, > > > "itemID" : {"type" : "string"}, > > > ... trimmed ... > > > "description" : { "type" : "string"}, > > > "brand" : { "type" : "string"}}}}} > > > > > > Then I go and change some values and I'll need to sort them and run > > > queries with ranges on some of them with the following command: > > > > > > curl -XPUT '[http://localhost:9200/company/item/\_mapping](http://localhost:9200/company/item/_mapping)' -d ' > > > {"geartrade":{"item":{"properties":{ > > > "model":{"type":"string"}, > > > > Where does "geartrade" come from? > > > > Your mapping syntax is wrong. > > > > Also, you can only update a mapping if it doesn't conflict with the > > existing mapping. Otherwise, you need to create a new type with the new > > mapping (perhaps in a new index), and reindex your data with the new > > mapping. > > > > clint ---
**Author:** ![Manuel\_Benavides](https://avatars.discourse-cdn.com/v4/letter/m/3ab097/32.png) [@Manuel\_Benavides](https://discuss.elastic.co/u/Manuel_Benavides)\ **Post date:** [April 8, 2011, 8:37pm UTC](https://discuss.elastic.co/t/changing-default-mapping/4202/9 "2011-04-08T20:37:21Z")
Sure this is what I run: curl -XPUT '[http://localhost:9200/company/item/\_mapping](http://localhost:9200/company/item/_mapping)' -d ' {"company":{ "item":{" properties":{ "model":{"type":"string"}, "itemID":{"type":"integer"}, "listingDate":{"format":"dateOptionalTime","type":"date"}, "condition":{"type":"string"}, "type":{"type":"string"}, "mainImage":{"type":"string"}, "percOff":{"type":"float"}, "size":{"type":"string"}, "username":{"type":"string"}, "category":{"type":"string"}, "title":{"type":"string"}, "price":{"type":"float"}, "msrp":{"type":"float"}, "description":{"type":"string"}, "brand":{"type":"string"} } } }}' And when I do I get back: {"ok":true,"acknowledged":true} I tried with a fresh index with nothing indexed and still don't work, I just read that you can send a mapping when you create the index so I'll try that right now. thanks, On Fri, Apr 8, 2011 at 12:27 PM, Shay Banon [shay.banon@elasticsearch.com](mailto:shay.banon@elasticsearch.com)wrote: > Can you provide a curl recreation? [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/help). > > On Friday, April 8, 2011 at 5:13 PM, Manuel Antonio Benavides Salazar > wrote: > > geartrade just the name of the index I changed it on the other places for > testing and forgot that one on the console I am running it OK so the syntax > is not wrong, I think then it just shouldn't say that the mapping was > updated successfully as it does, I'll give it a try with a newly fresh > index. > > On Fri, Apr 8, 2011 at 1:57 AM, Clinton Gormley [clinton@iannounce.co.uk](mailto:clinton@iannounce.co.uk)wrote: > > On Thu, 2011-04-07 at 15:42 -0700, Manuel Benavides wrote: > > > I have the following default mapping: > > > > {"company" : {"item" : {"properties" : { > > "model" : {"type" : "string"}, > > "itemID" : {"type" : "string"}, > > ... trimmed ... > > "description" : { "type" : "string"}, > > "brand" : { "type" : "string"}}}}} > > > > Then I go and change some values and I'll need to sort them and run > > queries with ranges on some of them with the following command: > > > > curl -XPUT '[http://localhost:9200/company/item/\_mapping](http://localhost:9200/company/item/_mapping)' -d ' > > {"geartrade":{"item":{"properties":{ > > "model":{"type":"string"}, > > Where does "geartrade" come from? > > Your mapping syntax is wrong. > > Also, you can only update a mapping if it doesn't conflict with the > existing mapping. Otherwise, you need to create a new type with the new > mapping (perhaps in a new index), and reindex your data with the new > mapping. > > clint ---
**Author:** ![kimchy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kimchy/32/44952_2.png) [@kimchy](https://discuss.elastic.co/u/kimchy)\ **Post date:** [April 8, 2011, 8:52pm UTC](https://discuss.elastic.co/t/changing-default-mapping/4202/10 "2011-04-08T20:52:41Z")
Its because the top level field is the index name, which it shouldn't be. The top level field should be just the type name, without the index name. I understand (I think) where the confusion is coming from, because of the GET Mapping API response when asking for a specific type mapping in a single index, thats why I added this to master: [Issues · elastic/elasticsearch · GitHub](https://github.com/elasticsearch/elasticsearch/issues/closed#issue/838). On Friday, April 8, 2011 at 11:37 PM, Manuel Antonio Benavides Salazar wrote: > Sure this is what I run: > > curl -XPUT '[http://localhost:9200/company/item/\_mapping](http://localhost:9200/company/item/_mapping)' -d ' > {"company":{ > "item":{" > properties":{ > "model":{"type":"string"}, > "itemID":{"type":"integer"}, > "listingDate":{"format":"dateOptionalTime","type":"date"}, > "condition":{"type":"string"}, > "type":{"type":"string"}, > "mainImage":{"type":"string"}, > "percOff":{"type":"float"}, > "size":{"type":"string"}, > "username":{"type":"string"}, > "category":{"type":"string"}, > "title":{"type":"string"}, > "price":{"type":"float"}, > "msrp":{"type":"float"}, > "description":{"type":"string"}, > "brand":{"type":"string"} > } > } > }}' > > And when I do I get back: > > {"ok":true,"acknowledged":true} > > I tried with a fresh index with nothing indexed and still don't work, I just read that you can send a mapping when you create the index so I'll try that right now. > > thanks, > > On Fri, Apr 8, 2011 at 12:27 PM, Shay Banon [shay.banon@elasticsearch.com](mailto:shay.banon@elasticsearch.com) wrote: > > > Can you provide a curl recreation? [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/help). > > On Friday, April 8, 2011 at 5:13 PM, Manuel Antonio Benavides Salazar wrote: > > > > > geartrade just the name of the index I changed it on the other places for testing and forgot that one on the console I am running it OK so the syntax is not wrong, I think then it just shouldn't say that the mapping was updated successfully as it does, I'll give it a try with a newly fresh index. > > > > > > On Fri, Apr 8, 2011 at 1:57 AM, Clinton Gormley [clinton@iannounce.co.uk](mailto:clinton@iannounce.co.uk) wrote: > > > > > > > On Thu, 2011-04-07 at 15:42 -0700, Manuel Benavides wrote: > > > > > > > > > I have the following default mapping: > > > > > > > > > > {"company" : {"item" : {"properties" : { > > > > > "model" : {"type" : "string"}, > > > > > "itemID" : {"type" : "string"}, > > > > > ... trimmed ... > > > > > "description" : { "type" : "string"}, > > > > > "brand" : { "type" : "string"}}}}} > > > > > > > > > > Then I go and change some values and I'll need to sort them and run > > > > > queries with ranges on some of them with the following command: > > > > > > > > > > curl -XPUT '[http://localhost:9200/company/item/\_mapping](http://localhost:9200/company/item/_mapping)' -d ' > > > > > {"geartrade":{"item":{"properties":{ > > > > > "model":{"type":"string"}, > > > > > > > > Where does "geartrade" come from? > > > > > > > > Your mapping syntax is wrong. > > > > > > > > Also, you can only update a mapping if it doesn't conflict with the > > > > existing mapping. Otherwise, you need to create a new type with the new > > > > mapping (perhaps in a new index), and reindex your data with the new > > > > mapping. > > > > > > > > clint ---
**Author:** ![Manuel\_Benavides](https://avatars.discourse-cdn.com/v4/letter/m/3ab097/32.png) [@Manuel\_Benavides](https://discuss.elastic.co/u/Manuel_Benavides)\ **Post date:** [April 8, 2011, 9:02pm UTC](https://discuss.elastic.co/t/changing-default-mapping/4202/11 "2011-04-08T21:02:30Z")
Great just tried it like this and totally worked, yeah is a bit confusing but really makes sense thanks a ton. curl -XPUT '[http://localhost:9200/geartrade/\_mapping](http://localhost:9200/geartrade/_mapping)' -d '{"item":{"properties":{"model":{"type":"string"},"itemID":{"type":"integer"},"listingDate":{"format":"dateOptionalTime","type":"date"},"condition":{"type":"string"},"type":{"type":"string"},"mainImage":{"type":"string"},"percOff":{"type":"float"},"size":{"type":"string"},"username":{"type":"string"},"category":{"type":"string"},"title":{"type":"string"},"price":{"type":"float"},"msrp":{"type":"float"},"description":{"type":"string"},"brand":{"type":"string"}}}}' On Fri, Apr 8, 2011 at 2:52 PM, Shay Banon [shay.banon@elasticsearch.com](mailto:shay.banon@elasticsearch.com)wrote: > Its because the top level field is the index name, which it shouldn't be. > The top level field should be just the type name, without the index name. I > understand (I think) where the confusion is coming from, because of the GET > Mapping API response when asking for a specific type mapping in a single > index, thats why I added this to master: > > [Issues · elastic/elasticsearch · GitHub](https://github.com/elasticsearch/elasticsearch/issues/closed#issue/838). > > On Friday, April 8, 2011 at 11:37 PM, Manuel Antonio Benavides Salazar > wrote: > > Sure this is what I run: > > curl -XPUT '[http://localhost:9200/company/item/\_mapping](http://localhost:9200/company/item/_mapping)' -d ' > {"company":{ > "item":{" > properties":{ > "model":{"type":"string"}, > "itemID":{"type":"integer"}, > "listingDate":{"format":"dateOptionalTime","type":"date"}, > "condition":{"type":"string"}, > "type":{"type":"string"}, > "mainImage":{"type":"string"}, > "percOff":{"type":"float"}, > "size":{"type":"string"}, > "username":{"type":"string"}, > "category":{"type":"string"}, > "title":{"type":"string"}, > "price":{"type":"float"}, > "msrp":{"type":"float"}, > "description":{"type":"string"}, > "brand":{"type":"string"} > } > } > }}' > > And when I do I get back: > > {"ok":true,"acknowledged":true} > > I tried with a fresh index with nothing indexed and still don't work, I > just read that you can send a mapping when you create the index so I'll try > that right now. > > thanks, > > On Fri, Apr 8, 2011 at 12:27 PM, Shay Banon [shay.banon@elasticsearch.com](mailto:shay.banon@elasticsearch.com)wrote: > > Can you provide a curl recreation? [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/help). > > On Friday, April 8, 2011 at 5:13 PM, Manuel Antonio Benavides Salazar > wrote: > > geartrade just the name of the index I changed it on the other places for > testing and forgot that one on the console I am running it OK so the syntax > is not wrong, I think then it just shouldn't say that the mapping was > updated successfully as it does, I'll give it a try with a newly fresh > index. > > On Fri, Apr 8, 2011 at 1:57 AM, Clinton Gormley [clinton@iannounce.co.uk](mailto:clinton@iannounce.co.uk)wrote: > > On Thu, 2011-04-07 at 15:42 -0700, Manuel Benavides wrote: > > > I have the following default mapping: > > > > {"company" : {"item" : {"properties" : { > > "model" : {"type" : "string"}, > > "itemID" : {"type" : "string"}, > > ... trimmed ... > > "description" : { "type" : "string"}, > > "brand" : { "type" : "string"}}}}} > > > > Then I go and change some values and I'll need to sort them and run > > queries with ranges on some of them with the following command: > > > > curl -XPUT '[http://localhost:9200/company/item/\_mapping](http://localhost:9200/company/item/_mapping)' -d ' > > {"geartrade":{"item":{"properties":{ > > "model":{"type":"string"}, > > Where does "geartrade" come from? > > Your mapping syntax is wrong. > > Also, you can only update a mapping if it doesn't conflict with the > existing mapping. Otherwise, you need to create a new type with the new > mapping (perhaps in a new index), and reindex your data with the new > mapping. > > clint ---
**Author:** ![Manuel\_Benavides](https://avatars.discourse-cdn.com/v4/letter/m/3ab097/32.png) [@Manuel\_Benavides](https://discuss.elastic.co/u/Manuel_Benavides)\ **Post date:** [April 9, 2011, 10:01pm UTC](https://discuss.elastic.co/t/changing-default-mapping/4202/12 "2011-04-09T22:01:14Z")
Thanks a lot Shay's suggestion totally worked for me and thanks for the recommendation I'll do it that way as the mapping automatically created doesn't match all elements as I need them. cheers, On Thu, Apr 7, 2011 at 4:55 PM, AGuereca [aguereca@gmail.com](mailto:aguereca@gmail.com) wrote: > Hi Manuel, > > Mapping is recommended to be defined at the time you are actually creating > the index. > Once the index is created either explicitly or because you insert a > document > (and a default mapping is created for you), very few settings are available > of change. > > I'll suggest reviewing: > > [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/reference/api/admin-indices-create-index.html) > > [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/reference/api/admin-indices-create-index.html) > And > [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/reference/mapping/) > [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/reference/mapping/) > > ~AG > > -- > View this message in context: > [http://elasticsearch-users.115913.n3.nabble.com/changing-default-mapping-tp2792694p2792755.html](http://elasticsearch-users.115913.n3.nabble.com/changing-default-mapping-tp2792694p2792755.html) > Sent from the Elasticsearch Users mailing list archive at [Nabble.com](http://Nabble.com). ---
**Author:** ![Barsk](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/barsk/32/13734_2.png) [@Barsk](https://discuss.elastic.co/u/Barsk)\ **Post date:** [April 11, 2011, 6:39am UTC](https://discuss.elastic.co/t/changing-default-mapping/4202/13 "2011-04-11T06:39:11Z")
``` Ok! Thanks for clearing that out. Now I understand what aliases can be used for as well. :) Btw, as I an afterthought, would it not be nice to have a method in ES to do the reindexing for you. I.e internally create a new tmp index, reindex with the scan search type and efter all is done return to you a complete reindexed index with the same name as before. If possible it could even be done in production and seamlessly switching the old index for the new when the process is done. The API method for this could simply be "reindex". Just a thought, as reindexing seems to be a fairly common procedure while doing configuration changes. /Kristian Shay Banon skrev 2011-04-08 20:23:
Hey, ```   Reindexing means just that, go over what you have indexed up until now and index it back. In terms of managing indices with elasticsearch, it is recommended to reindex into a fresh index the data (possibly using updated mappings), and then hot swap it using aliases.   Getting the data to reindex can be done either by going to your where your master data is stored, and index it again (for example, from the database), or, get it from elasticsearch. Getting it from elasticsearch in an efficient manner will be possible in the upcoming version using the scan search type (already in master).   Refresh is the process of making changes done (indexing for example) visible to search. It is not related to indexing. -shay.banon On Friday, April 8, 2011 at 4:05 PM, David Pilato wrote: > I think you have only to push again all your documents to elastic search. > > ``` > Elastic will update the mapping (or will use the new > mapping if you have > > provided it to ES just before) and will update each > document. So you don't > > have to delete anything. > > Hope this helps, > > David > > -----Message d'origine----- > > De : Kristian Jörg [mailto:krjg@devo.se] > > > Envoyé : vendredi 8 avril 2011 11:34 > > À : users@elasticsearch.com > > Objet : Reindex & refresh? > > I see a lot of references to "reindexing" the index in > the mailing list. > > But I am a bit unsure of what that really means. > > For instance when you change the mappings for a type > reindexing is needed. > > How do I do that? > > Is there an API method to call? > > Do I have to delete all contents and store again? > > Is reindexing the same as refresh? If not what is > really refresh then? > > Well, a bit of a newbie questions, but I am sure easy > to answer for anyone > > who knows... > > ``` ``` -- Med vänlig hälsning Kristian Jörg Devo IT AB Tel: 054 - 22 14 58, 0709 - 15 83 42 E-post:[kristian.jorg@devo.se](mailto:kristian.jorg@devo.se)Webb:[http://www.devo.se](http://www.devo.se) ``` ---
**Author:** ![kimchy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kimchy/32/44952_2.png) [@kimchy](https://discuss.elastic.co/u/kimchy)\ **Post date:** [April 11, 2011, 8:20am UTC](https://discuss.elastic.co/t/changing-default-mapping/4202/14 "2011-04-11T08:20:31Z")
A reindex API is certainly possible, the main effort was getting the scan API first. On Monday, April 11, 2011 at 9:39 AM, Kristian Jörg wrote: > Ok! > > Thanks for clearing that out. Now I understand what aliases can be used for as well. 🙂 > > Btw, as I an afterthought, would it not be nice to have a method in ES to do the reindexing for you. I.e internally create a new tmp index, reindex with the scan search type and efter all is done return to you a complete reindexed index with the same name as before. If possible it could even be done in production and seamlessly switching the old index for the new when the process is done. The API method for this could simply be "reindex". > > Just a thought, as reindexing seems to be a fairly common procedure while doing configuration changes. > > /Kristian > > Shay Banon skrev 2011-04-08 20:23: > > > Hey, > > > > Reindexing means just that, go over what you have indexed up until now and index it back. In terms of managing indices with elasticsearch, it is recommended to reindex into a fresh index the data (possibly using updated mappings), and then hot swap it using aliases. > > > > Getting the data to reindex can be done either by going to your where your master data is stored, and index it again (for example, from the database), or, get it from elasticsearch. Getting it from elasticsearch in an efficient manner will be possible in the upcoming version using the scan search type (already in master). > > > > Refresh is the process of making changes done (indexing for example) visible to search. It is not related to indexing. > > > > -shay.banon > > On Friday, April 8, 2011 at 4:05 PM, David Pilato wrote: > > > > > I think you have only to push again all your documents to Elasticsearch. > > > > > > Elastic will update the mapping (or will use the new mapping if you have > > > provided it to ES just before) and will update each document. So you don't > > > have to delete anything. > > > > > > Hope this helps, > > > David > > > > > > -----Message d'origine----- > > > De : Kristian Jörg [[mailto:krjg@devo.se](mailto:krjg@devo.se)] > > > Envoyé : vendredi 8 avril 2011 11:34 > > > À : [users@elasticsearch.com](mailto:users@elasticsearch.com) > > > Objet : Reindex & refresh? > > > > > > I see a lot of references to "reindexing" the index in the mailing list. > > > But I am a bit unsure of what that really means. > > > For instance when you change the mappings for a type reindexing is needed. > > > How do I do that? > > > > > > Is there an API method to call? > > > Do I have to delete all contents and store again? > > > Is reindexing the same as refresh? If not what is really refresh then? > > > > > > Well, a bit of a newbie questions, but I am sure easy to answer for anyone > > > who knows... > > -- Med vänlig hälsning Kristian Jörg Devo IT AB Tel: 054 - 22 14 58, 0709 - 15 83 42 E-post: kristian.jorg@devo.se Webb: [http://www.devo.se](http://www.devo.se) ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 4:08am UTC](https://discuss.elastic.co/t/changing-default-mapping/4202/15 "2017-07-06T04:08:38Z")