# Reindex after mapping **URL:** \ **Category:** Elasticsearch\ **Created:** [October 21, 2015, 12:07pm UTC](https://discuss.elastic.co/t/reindex-after-mapping/32669 "2015-10-21T12:07:28Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![kodermax](https://avatars.discourse-cdn.com/v4/letter/k/9d8465/32.png) [@kodermax](https://discuss.elastic.co/u/kodermax)\ **Post date:** [October 21, 2015, 12:07pm UTC](https://discuss.elastic.co/t/reindex-after-mapping/32669/1 "2015-10-21T12:07:28Z")
When i do mapping for field then i need do reindex? ``` PUT /contact { "properties": { "perms": { "type": "multi_field", "fields": { "perms": {"type": "string"}, "original": {"type" : "string", "index" : "not_analyzed"} } } } } } ``` ---
**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:** [October 21, 2015, 12:20pm UTC](https://discuss.elastic.co/t/reindex-after-mapping/32669/2 "2015-10-21T12:20:01Z")
Yes if you want to be able to search using the new field, then you need to reindex. ---
**Author:** ![kodermax](https://avatars.discourse-cdn.com/v4/letter/k/9d8465/32.png) [@kodermax](https://discuss.elastic.co/u/kodermax)\ **Post date:** [October 22, 2015, 10:56am UTC](https://discuss.elastic.co/t/reindex-after-mapping/32669/3 "2015-10-22T10:56:39Z")
> [@dadoonet](#): > > Yes if you want to be able to search using the new field, then you need to reindex. May be has ready command for this, or I must make request to elasticsearch for add index? ---
**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:** [October 22, 2015, 11:08am UTC](https://discuss.elastic.co/t/reindex-after-mapping/32669/4 "2015-10-22T11:08:03Z")
There is no reindex command. ---
**Author:** ![kodermax](https://avatars.discourse-cdn.com/v4/letter/k/9d8465/32.png) [@kodermax](https://discuss.elastic.co/u/kodermax)\ **Post date:** [October 22, 2015, 12:14pm UTC](https://discuss.elastic.co/t/reindex-after-mapping/32669/5 "2015-10-22T12:14:40Z")
Thank you. ---
**Author:** ![Mark\_Harwood](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mark_harwood/32/10538_2.png) [@Mark\_Harwood](https://discuss.elastic.co/u/Mark_Harwood)\ **Post date:** [October 22, 2015, 1:19pm UTC](https://discuss.elastic.co/t/reindex-after-mapping/32669/6 "2015-10-22T13:19:19Z")
Elasticsearch clients typically offer this e.g. the python one [1] Note also that the use of aliases [2] eases the transition from one index version to another with no downtime for your users [1] [http://elasticsearch-py.readthedocs.org/en/master/helpers.html#reindex](http://elasticsearch-py.readthedocs.org/en/master/helpers.html#reindex) [2] [https://www.elastic.co/guide/en/elasticsearch/guide/current/index-aliases.html](https://www.elastic.co/guide/en/elasticsearch/guide/current/index-aliases.html) ---
**Author:** ![kodermax](https://avatars.discourse-cdn.com/v4/letter/k/9d8465/32.png) [@kodermax](https://discuss.elastic.co/u/kodermax)\ **Post date:** [October 22, 2015, 2:38pm UTC](https://discuss.elastic.co/t/reindex-after-mapping/32669/7 "2015-10-22T14:38:49Z")
If i use alias for example PUT /portal\_v1/\_alias/portal when i search by portal, elasticsearch will be use my alias portal\_v1? ---
**Author:** ![Mark\_Harwood](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mark_harwood/32/10538_2.png) [@Mark\_Harwood](https://discuss.elastic.co/u/Mark_Harwood)\ **Post date:** [October 22, 2015, 2:43pm UTC](https://discuss.elastic.co/t/reindex-after-mapping/32669/8 "2015-10-22T14:43:34Z")
Right - aliases are an incredibly useful level of indirection an elasticsearch cluster administrator can use to reroute client requests in lots of interesting ways (managing new index versions, querying multiple time-based indexes, filtering index contents for different users....) ---
**Author:** ![kodermax](https://avatars.discourse-cdn.com/v4/letter/k/9d8465/32.png) [@kodermax](https://discuss.elastic.co/u/kodermax)\ **Post date:** [October 22, 2015, 2:45pm UTC](https://discuss.elastic.co/t/reindex-after-mapping/32669/9 "2015-10-22T14:45:33Z")
in my application i must set type as alias? ``` $params = [ 'index' => 'portal_v1', // or portal 'type' => 'contact', 'size' => 200 ]; ``` ---
**Author:** ![Mark\_Harwood](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mark_harwood/32/10538_2.png) [@Mark\_Harwood](https://discuss.elastic.co/u/Mark_Harwood)\ **Post date:** [October 22, 2015, 2:47pm UTC](https://discuss.elastic.co/t/reindex-after-mapping/32669/10 "2015-10-22T14:47:30Z")
You use the alias name "portal". From a user's perspective an alias is the same as a concrete index but gives the cluster administrator the option of switching how it is mapped e.g. to portal\_v1 or portal\_v2 with no client downtime. ---
**Author:** ![kodermax](https://avatars.discourse-cdn.com/v4/letter/k/9d8465/32.png) [@kodermax](https://discuss.elastic.co/u/kodermax)\ **Post date:** [October 22, 2015, 2:49pm UTC](https://discuss.elastic.co/t/reindex-after-mapping/32669/11 "2015-10-22T14:49:54Z")
when i make new mapping for portal\_v2 then i must change all scripts like ``` $params = [ 'index' => 'portal_v2', 'type' => 'contact', 'size' => 200 ]; ``` ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 5, 2017, 11:43pm UTC](https://discuss.elastic.co/t/reindex-after-mapping/32669/12 "2017-07-05T23:43:13Z")