# Uninstalling and installing again ES using yajsw can delete already hooked mappings on localhost?

**URL:** <https://discuss.elastic.co/t/uninstalling-and-installing-again-es-using-yajsw-can-delete-already-hooked-mappings-on-localhost/18728>\
**Category:** Elasticsearch\
**Created:** [July 17, 2014, 10:10pm UTC](https://discuss.elastic.co/t/uninstalling-and-installing-again-es-using-yajsw-can-delete-already-hooked-mappings-on-localhost/18728 "2014-07-17T22:10:37Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ajay78](https://avatars.discourse-cdn.com/v4/letter/a/c37758/32.png) [@ajay78](https://discuss.elastic.co/u/ajay78)\
**Post date:** [July 17, 2014, 10:10pm UTC](https://discuss.elastic.co/t/uninstalling-and-installing-again-es-using-yajsw-can-delete-already-hooked-mappings-on-localhost/18728/1 "2014-07-17T22:10:37Z")

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using ES with yajsw to run it as a service on my machine,,,,,mappings and data is already hooked on port (localhost)........uninstalling and installing again wont wash my data and mappings??

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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 6, 2017, 1:15am UTC](https://discuss.elastic.co/t/uninstalling-and-installing-again-es-using-yajsw-can-delete-already-hooked-mappings-on-localhost/18728/2 "2017-07-06T01:15:05Z")

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Closed on July 6, 2017, 1:15am UTC