# Re-creating ES Index **URL:** \ **Category:** Elasticsearch\ **Created:** [June 9, 2014, 4:34am UTC](https://discuss.elastic.co/t/re-creating-es-index/17986 "2014-06-09T04:34:27Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![karthik426](https://avatars.discourse-cdn.com/v4/letter/k/edb3f5/32.png) [@karthik426](https://discuss.elastic.co/u/karthik426)\ **Post date:** [June 9, 2014, 4:34am UTC](https://discuss.elastic.co/t/re-creating-es-index/17986/1 "2014-06-09T04:34:27Z")
Hi, I have a few questions with respect to the situation of needing to re-create an index. 1. Is there is any process to re-create an index apart from deleting the current one and creating it again with the documents ? 2. During the situations of re-create, can we use the data already stored in the ES cluster ? 3. Are there any easy ways of the doing the same without have any down-time to the running ES cluster ? Appreciate any response on the same. Thanks, Karthik -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/e141b51d-99aa-4a78-b20a-2d9dcfe2e79b%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/e141b51d-99aa-4a78-b20a-2d9dcfe2e79b%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**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:** [June 9, 2014, 7:55am UTC](https://discuss.elastic.co/t/re-creating-es-index/17986/2 "2014-06-09T07:55:14Z")
Use aliases. So you have an alias which goes to oldindex. Reindex in newindex. When done, switch the alias. You can read old index using scan and scroll feature and reindex in the new index as soon as you kept the \_source field. -- David 😉 Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs Le 9 juin 2014 à 06:34, karthik jayanthi [karthikjayanthi.iitm@gmail.com](mailto:karthikjayanthi.iitm@gmail.com) a écrit : Hi, I have a few questions with respect to the situation of needing to re-create an index. 1. Is there is any process to re-create an index apart from deleting the current one and creating it again with the documents ? 2. During the situations of re-create, can we use the data already stored in the ES cluster ? 3. Are there any easy ways of the doing the same without have any down-time to the running ES cluster ? Appreciate any response on the same. Thanks, Karthik -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/e141b51d-99aa-4a78-b20a-2d9dcfe2e79b%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/e141b51d-99aa-4a78-b20a-2d9dcfe2e79b%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/DEFEB56B-5DDF-409B-829B-BAE787480C07%40pilato.fr](https://groups.google.com/d/msgid/elasticsearch/DEFEB56B-5DDF-409B-829B-BAE787480C07%40pilato.fr). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![karthik426](https://avatars.discourse-cdn.com/v4/letter/k/edb3f5/32.png) [@karthik426](https://discuss.elastic.co/u/karthik426)\ **Post date:** [June 9, 2014, 7:59am UTC](https://discuss.elastic.co/t/re-creating-es-index/17986/3 "2014-06-09T07:59:29Z")
Awesome. Thanks for the prompt reply. Thanks, Karthik On Mon, Jun 9, 2014 at 1:25 PM, David Pilato [david@pilato.fr](mailto:david@pilato.fr) wrote: > Use aliases. > > So you have an alias which goes to oldindex. > Reindex in newindex. > When done, switch the alias. > > You can read old index using scan and scroll feature and reindex in the > new index as soon as you kept the \_source field. > > -- > David 😉 > Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs > > Le 9 juin 2014 à 06:34, karthik jayanthi [karthikjayanthi.iitm@gmail.com](mailto:karthikjayanthi.iitm@gmail.com) > a écrit : > > Hi, > > I have a few questions with respect to the situation of needing to > re-create an index. > > 1. Is there is any process to re-create an index apart from deleting the > current one and creating it again with the documents ? > 2. During the situations of re-create, can we use the data already stored > in the ES cluster ? > 3. Are there any easy ways of the doing the same without have any > down-time to the running ES cluster ? > > Appreciate any response on the same. > > Thanks, > Karthik > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/e141b51d-99aa-4a78-b20a-2d9dcfe2e79b%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/e141b51d-99aa-4a78-b20a-2d9dcfe2e79b%40googlegroups.com) > [https://groups.google.com/d/msgid/elasticsearch/e141b51d-99aa-4a78-b20a-2d9dcfe2e79b%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/e141b51d-99aa-4a78-b20a-2d9dcfe2e79b%40googlegroups.com?utm_medium=email&utm_source=footer) > . > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). > > -- > You received this message because you are subscribed to a topic in the > Google Groups "elasticsearch" group. > To unsubscribe from this topic, visit > [https://groups.google.com/d/topic/elasticsearch/1kgp2yjGUD0/unsubscribe](https://groups.google.com/d/topic/elasticsearch/1kgp2yjGUD0/unsubscribe). > To unsubscribe from this group and all its topics, send an email to > [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/DEFEB56B-5DDF-409B-829B-BAE787480C07%40pilato.fr](https://groups.google.com/d/msgid/elasticsearch/DEFEB56B-5DDF-409B-829B-BAE787480C07%40pilato.fr) > [https://groups.google.com/d/msgid/elasticsearch/DEFEB56B-5DDF-409B-829B-BAE787480C07%40pilato.fr?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/DEFEB56B-5DDF-409B-829B-BAE787480C07%40pilato.fr?utm_medium=email&utm_source=footer) > . > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- Sarve Jana Sukhino Bhavanthu Karthik Jayanthi -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CAD7PaHzF6h1y49wWSvWNe%2BFpYAehQuJu6Zb-34HYkGLqssy2-Q%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAD7PaHzF6h1y49wWSvWNe%2BFpYAehQuJu6Zb-34HYkGLqssy2-Q%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**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, 1:23am UTC](https://discuss.elastic.co/t/re-creating-es-index/17986/4 "2017-07-06T01:23:50Z")