# Whether CCR and reindex from remote are same?

**URL:** <https://discuss.elastic.co/t/whether-ccr-and-reindex-from-remote-are-same/313106>\
**Category:** Elasticsearch\
**Created:** [August 28, 2022, 6:53pm UTC](https://discuss.elastic.co/t/whether-ccr-and-reindex-from-remote-are-same/313106 "2022-08-28T18:53:42Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![mruthyu](https://avatars.discourse-cdn.com/v4/letter/m/bb73d2/32.png) [@mruthyu](https://discuss.elastic.co/u/mruthyu)\
**Post date:** [August 28, 2022, 6:53pm UTC](https://discuss.elastic.co/t/whether-ccr-and-reindex-from-remote-are-same/313106/1 "2022-08-28T18:53:42Z")

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Whether CCR and reindex from remote are same?

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**Author:** ![stephenb](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/stephenb/32/40856_2.png) [@stephenb](https://discuss.elastic.co/u/stephenb)\
**Post date:** [August 28, 2022, 7:18pm UTC](https://discuss.elastic.co/t/whether-ccr-and-reindex-from-remote-are-same/313106/2 "2022-08-28T19:18:13Z")

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No CCR is ongoing.. updates in the source are reflected in the remote.

Reindex from remote is once / point in time.. updates in the remote source afterwards or not reflected in the local index

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**Author:** ![mruthyu](https://avatars.discourse-cdn.com/v4/letter/m/bb73d2/32.png) [@mruthyu](https://discuss.elastic.co/u/mruthyu)\
**Post date:** [September 2, 2022, 5:40pm UTC](https://discuss.elastic.co/t/whether-ccr-and-reindex-from-remote-are-same/313106/3 "2022-09-02T17:40:55Z")

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I mean whether internally both will use the same reindex API? If I want to replicate the index from one cluster to the another new cluster, I can use CCR which is part of the Platinum license and also reindex which is part of the Basic License?

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**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [September 2, 2022, 5:58pm UTC](https://discuss.elastic.co/t/whether-ccr-and-reindex-from-remote-are-same/313106/4 "2022-09-02T17:58:40Z")

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No, they use completely different mechanisms. CCR tracks changes to the index more or less continuously and replicate these to the destination cluster(s).

The reindex API copies a snapshot of the index when it is run and has to be invoked manually.

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**Author:** ![stephenb](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/stephenb/32/40856_2.png) [@stephenb](https://discuss.elastic.co/u/stephenb)\
**Post date:** [September 2, 2022, 7:08pm UTC](https://discuss.elastic.co/t/whether-ccr-and-reindex-from-remote-are-same/313106/5 "2022-09-02T19:08:44Z")

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@mruthyu No they use completely different mechanism under the covers... CCR does NOT use the Reindex API, CCR is much more sophisticated.

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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:** [September 30, 2022, 7:08pm UTC](https://discuss.elastic.co/t/whether-ccr-and-reindex-from-remote-are-same/313106/6 "2022-09-30T19:08:50Z")

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