# The best way to migrate data from 3 indices to new index **URL:** \ **Category:** Elasticsearch\ **Created:** [April 27, 2015, 10:02am UTC](https://discuss.elastic.co/t/the-best-way-to-migrate-data-from-3-indices-to-new-index/23410 "2015-04-27T10:02:44Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![tao\_hiko](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tao_hiko/32/707_2.png) [@tao\_hiko](https://discuss.elastic.co/u/tao_hiko)\ **Post date:** [April 27, 2015, 10:02am UTC](https://discuss.elastic.co/t/the-best-way-to-migrate-data-from-3-indices-to-new-index/23410/1 "2015-04-27T10:02:44Z")
I have similar 3 indices in same cluster and I will create new index for support new change. Anyone please suggest me, How to migrate data from those to the new one easily? Hiko. -- 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/89a519e3-0beb-4cc4-ae0b-0742aedc2274%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/89a519e3-0beb-4cc4-ae0b-0742aedc2274%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [April 27, 2015, 9:24pm UTC](https://discuss.elastic.co/t/the-best-way-to-migrate-data-from-3-indices-to-new-index/23410/2 "2015-04-27T21:24:07Z")
Use one of the official clients to do it - [Starting with the Elasticsearch Platform and its Solutions | Elastic](http://www.elastic.co/guide/) On 27 April 2015 at 20:02, tao hiko [taohiko@gmail.com](mailto:taohiko@gmail.com) wrote: > I have similar 3 indices in same cluster and I will create new index for > support new change. > > Anyone please suggest me, How to migrate data from those to the new one > easily? > > Hiko. > > -- > 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/89a519e3-0beb-4cc4-ae0b-0742aedc2274%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/89a519e3-0beb-4cc4-ae0b-0742aedc2274%40googlegroups.com) > [https://groups.google.com/d/msgid/elasticsearch/89a519e3-0beb-4cc4-ae0b-0742aedc2274%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/89a519e3-0beb-4cc4-ae0b-0742aedc2274%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 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/CAEYi1X9bpuxdi6kESRtARGhiNfMxkLKRh63oP64D40bWnoMdJA%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAEYi1X9bpuxdi6kESRtARGhiNfMxkLKRh63oP64D40bWnoMdJA%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![tao\_hiko](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tao_hiko/32/707_2.png) [@tao\_hiko](https://discuss.elastic.co/u/tao_hiko)\ **Post date:** [April 30, 2015, 11:09am UTC](https://discuss.elastic.co/t/the-best-way-to-migrate-data-from-3-indices-to-new-index/23410/3 "2015-04-30T11:09:05Z")
Hi Mark, I'm trying to use javascript to do that by bulk operation but I found some issue when source data contain "\" that cannot insert to target index that show below error MapperParsingException[failed to parse [summary]]; nested: JsonParseException[Unrecognized character escape 's' (code 115) The source data contains path on Windows (eg. C:\path) so ES ejects that document. Hiko On Tuesday, April 28, 2015 at 4:24:40 AM UTC+7, Mark Walkom wrote: > Use one of the official clients to do it - [Starting with the Elasticsearch Platform and its Solutions | Elastic](http://www.elastic.co/guide/) > > On 27 April 2015 at 20:02, tao hiko \<[tao...@gmail.com](mailto:tao...@gmail.com) \\> > wrote: > > > I have similar 3 indices in same cluster and I will create new index for > > support new change. > > > > Anyone please suggest me, How to migrate data from those to the new one > > easily? > > > > Hiko. > > > > -- > > 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 [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com) \. > > To view this discussion on the web visit > > [https://groups.google.com/d/msgid/elasticsearch/89a519e3-0beb-4cc4-ae0b-0742aedc2274%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/89a519e3-0beb-4cc4-ae0b-0742aedc2274%40googlegroups.com) > > [https://groups.google.com/d/msgid/elasticsearch/89a519e3-0beb-4cc4-ae0b-0742aedc2274%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/89a519e3-0beb-4cc4-ae0b-0742aedc2274%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 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/61d15631-a6a5-47e3-9759-25c052a0443a%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/61d15631-a6a5-47e3-9759-25c052a0443a%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![tao\_hiko](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tao_hiko/32/707_2.png) [@tao\_hiko](https://discuss.elastic.co/u/tao_hiko)\ **Post date:** [May 7, 2015, 4:56am UTC](https://discuss.elastic.co/t/the-best-way-to-migrate-data-from-3-indices-to-new-index/23410/4 "2015-05-07T04:56:09Z")
This problem is fixed, I replace "\" with "\\" and load again. Finally, I create js script and run by node command that is work for me. On Thursday, April 30, 2015 at 6:09:05 PM UTC+7, tao hiko wrote: > Hi Mark, > > I'm trying to use javascript to do that by bulk operation but I found some > issue when source data contain "\" that cannot insert to target index that > show below error > > MapperParsingException[failed to parse [summary]]; nested: > JsonParseException[Unrecognized character escape 's' (code 115) > > The source data contains path on Windows (eg. C:\path) so ES ejects that > document. > > Hiko > > On Tuesday, April 28, 2015 at 4:24:40 AM UTC+7, Mark Walkom wrote: > > > Use one of the official clients to do it - [Elastic Docs | Elastic](http://www.elastic.co/guide/) > > > > On 27 April 2015 at 20:02, tao hiko [tao...@gmail.com](mailto:tao...@gmail.com) wrote: > > > > > I have similar 3 indices in same cluster and I will create new index for > > > support new change. > > > > > > Anyone please suggest me, How to migrate data from those to the new one > > > easily? > > > > > > Hiko. > > > > > > -- > > > 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 [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com). > > > To view this discussion on the web visit > > > [https://groups.google.com/d/msgid/elasticsearch/89a519e3-0beb-4cc4-ae0b-0742aedc2274%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/89a519e3-0beb-4cc4-ae0b-0742aedc2274%40googlegroups.com) > > > [https://groups.google.com/d/msgid/elasticsearch/89a519e3-0beb-4cc4-ae0b-0742aedc2274%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/89a519e3-0beb-4cc4-ae0b-0742aedc2274%40googlegroups.com?utm_medium=email&utm_source=footer) > > > . > > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ## -- Please update your bookmarks! We moved to [https://discuss.elastic.co/](https://discuss.elastic.co/) 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/90d4c0ec-11a3-445e-8f07-4a38d34bc688%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/90d4c0ec-11a3-445e-8f07-4a38d34bc688%40googlegroups.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, 12:15am UTC](https://discuss.elastic.co/t/the-best-way-to-migrate-data-from-3-indices-to-new-index/23410/5 "2017-07-06T00:15:15Z")