# Don't see performance boost in ES 5 using data restored from 2.4 snapshot

**URL:** <https://discuss.elastic.co/t/dont-see-performance-boost-in-es-5-using-data-restored-from-2-4-snapshot/66145>\
**Category:** Elasticsearch\
**Created:** [November 15, 2016, 6:18pm UTC](https://discuss.elastic.co/t/dont-see-performance-boost-in-es-5-using-data-restored-from-2-4-snapshot/66145 "2016-11-15T18:18:22Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![suanmeiguo](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/suanmeiguo/32/11758_2.png) [@suanmeiguo](https://discuss.elastic.co/u/suanmeiguo)\
**Post date:** [November 15, 2016, 6:18pm UTC](https://discuss.elastic.co/t/dont-see-performance-boost-in-es-5-using-data-restored-from-2-4-snapshot/66145/1 "2016-11-15T18:18:22Z")

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I restored a snapshot from ES 2.4.1 to ES 5. And did my load test on the new cluster. However I didn't see any performance improvement (it's actually much slower).

Is there known issue using data restored from 2.4? It should be compatible but not sure what's the performance impact. I know field types changed in 5, Do I need to reindex using new mapping to get the performance boost?

Thank you!

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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:** [December 13, 2016, 6:18pm UTC](https://discuss.elastic.co/t/dont-see-performance-boost-in-es-5-using-data-restored-from-2-4-snapshot/66145/2 "2016-12-13T18:18:35Z")

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Closed on December 13, 2016, 6:18pm UTC

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