# Elastic search installation

**URL:** <https://discuss.elastic.co/t/elastic-search-installation/148504>\
**Category:** Elasticsearch\
**Created:** [September 13, 2018, 7:08pm UTC](https://discuss.elastic.co/t/elastic-search-installation/148504 "2018-09-13T19:08:24Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![Maddy\_M](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/maddy_m/32/45638_2.png) [@Maddy\_M](https://discuss.elastic.co/u/Maddy_M)\
**Post date:** [September 13, 2018, 7:08pm UTC](https://discuss.elastic.co/t/elastic-search-installation/148504/1 "2018-09-13T19:08:24Z")

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hi,

elastic search data directory is removed. how to restore data. elastic search process is still running.

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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 13, 2018, 8:22pm UTC](https://discuss.elastic.co/t/elastic-search-installation/148504/2 "2018-09-13T20:22:47Z")

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How did it get removed? Do you have a backup to restore from?

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**Author:** ![Maddy\_M](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/maddy_m/32/45638_2.png) [@Maddy\_M](https://discuss.elastic.co/u/Maddy_M)\
**Post date:** [September 13, 2018, 8:25pm UTC](https://discuss.elastic.co/t/elastic-search-installation/148504/3 "2018-09-13T20:25:55Z")

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I accidentally used rm command to delete the data directory and it is running in single node. but process is still up.

1. Will starting the new member will work?
2. can connect take comlpete backup from ES? as I can see data through kibana

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<div class="post-metadata">

**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 13, 2018, 8:29pm UTC](https://discuss.elastic.co/t/elastic-search-installation/148504/4 "2018-09-13T20:29:59Z")

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Elasticsearch does not hold all data in memory, so I suspect the data may very well be lost.

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<div class="post-metadata">

**Author:** ![Maddy\_M](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/maddy_m/32/45638_2.png) [@Maddy\_M](https://discuss.elastic.co/u/Maddy_M)\
**Post date:** [September 13, 2018, 8:30pm UTC](https://discuss.elastic.co/t/elastic-search-installation/148504/5 "2018-09-13T20:30:47Z")

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okay. How I am seeing that data in kibana?

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<div class="post-metadata">

**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 14, 2018, 9:32am UTC](https://discuss.elastic.co/t/elastic-search-installation/148504/6 "2018-09-14T09:32:26Z")

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That sounds odd. Would expect that to fail quite quickly. Are you sure you deleted the data directory Elasticsearch uses? Is there anything in the Elasticsearch logs?

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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:** [October 12, 2018, 9:32am UTC](https://discuss.elastic.co/t/elastic-search-installation/148504/7 "2018-10-12T09:32:27Z")

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