# Data lost

**URL:** <https://discuss.elastic.co/t/data-lost/78081>\
**Category:** Elasticsearch\
**Created:** [March 10, 2017, 3:30am UTC](https://discuss.elastic.co/t/data-lost/78081 "2017-03-10T03:30:11Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ccHunter](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/cchunter/32/33952_2.png) [@ccHunter](https://discuss.elastic.co/u/ccHunter)\
**Post date:** [March 10, 2017, 3:30am UTC](https://discuss.elastic.co/t/data-lost/78081/1 "2017-03-10T03:30:11Z")

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my elasticsearch server crashed after a get query, and then the server recovered, but some doc's \_source field lost and some doc's \_source field lost for replica shard and some lost at primary shard.  
is there any one known what has happened?

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [March 10, 2017, 3:49am UTC](https://discuss.elastic.co/t/data-lost/78081/2 "2017-03-10T03:49:42Z")

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> my elasticsearch server crashed after a get query

Looks strange. Do you have logs of the server? Can you share them?

> some doc's \_source field lost

WDYM? That the document is still here but with no `_source` content? Or that the document does not exist at all?

> is there any one known what has happened?

No. You need to share your logs and version at least.

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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:** [April 7, 2017, 3:50am UTC](https://discuss.elastic.co/t/data-lost/78081/3 "2017-04-07T03:50:18Z")

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Closed on April 7, 2017, 3:50am UTC

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