# Unexpected file read error while reading index

**URL:** https://discuss.elastic.co/t/unexpected-file-read-error-while-reading-index/288795
**Category:** Elasticsearch
**Created:** [November 9, 2021, 4:35pm UTC](https://discuss.elastic.co/t/unexpected-file-read-error-while-reading-index/288795 "2021-11-09T16:35:46Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)
#### Post date: [November 9, 2021, 4:58pm UTC](https://discuss.elastic.co/t/unexpected-file-read-error-while-reading-index/288795/2 "2021-11-09T16:58:21Z")

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> [@tropically](#):
>
> Is there any loss of data , associated with removing this file?

Maybe, but it's not possible to answer this reliably. See [these docs](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-node.html#data-path) for more details:

> **WARNING** : Don’t modify anything within the data directory or run processes that might interfere with its contents. If something other than Elasticsearch modifies the contents of the data directory, then Elasticsearch may fail, reporting corruption or other data inconsistencies, or may appear to work correctly having silently lost some of your data.

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