# Migration from Google Search Appliance to ES

**URL:** <https://discuss.elastic.co/t/migration-from-google-search-appliance-to-es/56106>\
**Category:** Elasticsearch\
**Created:** [July 21, 2016, 2:14pm UTC](https://discuss.elastic.co/t/migration-from-google-search-appliance-to-es/56106 "2016-07-21T14:14:53Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Ivan\_Ghisleni](https://avatars.discourse-cdn.com/v4/letter/i/5daacb/32.png) [@Ivan\_Ghisleni](https://discuss.elastic.co/u/Ivan_Ghisleni)\
**Post date:** [July 21, 2016, 2:14pm UTC](https://discuss.elastic.co/t/migration-from-google-search-appliance-to-es/56106/1 "2016-07-21T14:14:53Z")

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Hi to all,

I'm migrating from GSA to ES 2.1, anyone knows how to imitate the GSA serch algoritm with ES, cause if I compare the same search input the results are very different expecially in the order of results.

Thank u  
Ivan

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**Author:** ![jprante](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jprante/32/44941_2.png) [@jprante](https://discuss.elastic.co/u/jprante)\
**Post date:** [July 21, 2016, 7:57pm UTC](https://discuss.elastic.co/t/migration-from-google-search-appliance-to-es/56106/2 "2016-07-21T19:57:57Z")

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The GSA search algorithm is unknown, so it's impossible to recreate something like 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, 10:33pm UTC](https://discuss.elastic.co/t/migration-from-google-search-appliance-to-es/56106/3 "2017-07-05T22:33:34Z")

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