# How to reindex ES1.7.1 indices to another index?

**URL:** <https://discuss.elastic.co/t/how-to-reindex-es1-7-1-indices-to-another-index/45566>\
**Category:** Elasticsearch\
**Created:** [March 28, 2016, 8:08am UTC](https://discuss.elastic.co/t/how-to-reindex-es1-7-1-indices-to-another-index/45566 "2016-03-28T08:08:03Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![vikas\_gopal](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vikas_gopal/32/47661_2.png) [@vikas\_gopal](https://discuss.elastic.co/u/vikas_gopal)\
**Post date:** [March 28, 2016, 8:08am UTC](https://discuss.elastic.co/t/how-to-reindex-es1-7-1-indices-to-another-index/45566/1 "2016-03-28T08:08:03Z")

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Hi Experts,

I have following indices in ES 1.7.1 and i want to reindex all of them into a new index with new settings , mapping and i also want to remove some fields .I am using alias for all the indices it is "cef"  
 ![](https://us1.discourse-cdn.com/elastic/original/2X/2/2bce2a3839941bf743cc893ab6ac86cfbe13c63c.png)

Difficulties

--\>I understand that best option would be, reindex whole data using LS , but problem is due to large size of the data file I zipped it and moved it to another place .So it is a very lengthy and tedious process for me to get back that zipped file and then reindex it .

Query

Is it possible that I can reindex my existing indices with new settings , mapping into a new index without facing the above difficulty ? In other words how I can send data from above indices to another index which will have updated settings and Mapping ?

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**Author:** ![orweinberger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/orweinberger/32/580_2.png) [@orweinberger](https://discuss.elastic.co/u/orweinberger)\
**Post date:** [March 28, 2016, 8:41am UTC](https://discuss.elastic.co/t/how-to-reindex-es1-7-1-indices-to-another-index/45566/2 "2016-03-28T08:41:37Z")

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You could use tools like [knapsack](https://github.com/jprante/elasticsearch-knapsack), [elasticsearch exporter](https://github.com/mallocator/Elasticsearch-Exporter) or [elasticdump](https://github.com/taskrabbit/elasticsearch-dump) - They all have the features you are looking for.

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**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:** [March 28, 2016, 10:31am UTC](https://discuss.elastic.co/t/how-to-reindex-es1-7-1-indices-to-another-index/45566/3 "2016-03-28T10:31:51Z")

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Also a full tutorial here: [http://david.pilato.fr/blog/2015/05/20/reindex-elasticsearch-with-logstash/](http://david.pilato.fr/blog/2015/05/20/reindex-elasticsearch-with-logstash/)

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**Author:** ![vikas\_gopal](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vikas_gopal/32/47661_2.png) [@vikas\_gopal](https://discuss.elastic.co/u/vikas_gopal)\
**Post date:** [March 28, 2016, 10:41am UTC](https://discuss.elastic.co/t/how-to-reindex-es1-7-1-indices-to-another-index/45566/4 "2016-03-28T10:41:05Z")

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Thanks David

I am following this tutorial only from last 1 hour hope I will be able to implement it 🙂

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**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, 11:04pm UTC](https://discuss.elastic.co/t/how-to-reindex-es1-7-1-indices-to-another-index/45566/5 "2017-07-05T23:04:45Z")

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