# Where's my data gone?

**URL:** <https://discuss.elastic.co/t/wheres-my-data-gone/19387>\
**Category:** Elasticsearch\
**Created:** [August 21, 2014, 9:24am UTC](https://discuss.elastic.co/t/wheres-my-data-gone/19387 "2014-08-21T09:24:39Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![sale\_chris](https://avatars.discourse-cdn.com/v4/letter/s/7bcc69/32.png) [@sale\_chris](https://discuss.elastic.co/u/sale_chris)\
**Post date:** [August 21, 2014, 9:24am UTC](https://discuss.elastic.co/t/wheres-my-data-gone/19387/1 "2014-08-21T09:24:39Z")

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We have a small Elastic Search cluster consisting of 3 nodes.  
Looking back at some historic data that we are holding it would appear that  
some of our data is missing.

This histogram below shows 2 50 minute periods where the number of events  
is noticeably lower.  
This wasn't the case when I last looked at this data a couple of days ago.

[https://lh5.googleusercontent.com/-zN6h62PQc6c/U\_W2ZsbZU7I/AAAAAAAAAGw/GZedfHblhCk/s1600/elastic%2Bsearch.png](https://lh5.googleusercontent.com/-zN6h62PQc6c/U_W2ZsbZU7I/AAAAAAAAAGw/GZedfHblhCk/s1600/elastic%2Bsearch.png)  
Our index has 5 primary shards, 10 active shards and 0 unassigned shards.

We have tried...

- Flushing the index
- Refreshing the index
- Clearing the cache
- Restarting the nodes  
...but nothing has had an effect

Does anyone have any recommendations about what might have happened or how  
we can go about debugging this?

Many thanks, Chris

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<div class="post-metadata">

**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, 1:07am UTC](https://discuss.elastic.co/t/wheres-my-data-gone/19387/2 "2017-07-06T01:07:14Z")

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