# ELK suddenly colapsed

**URL:** <https://discuss.elastic.co/t/elk-suddenly-colapsed/48414>\
**Category:** Elasticsearch\
**Created:** [April 26, 2016, 10:36am UTC](https://discuss.elastic.co/t/elk-suddenly-colapsed/48414 "2016-04-26T10:36:09Z")\
**Posts on this page:** 1\
**Showing post:** 5

<div class="post-metadata">

**Author:** ![wvl0](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/wvl0/32/6551_2.png) [@wvl0](https://discuss.elastic.co/u/wvl0)\
**Post date:** [April 26, 2016, 1:18pm UTC](https://discuss.elastic.co/t/elk-suddenly-colapsed/48414/5 "2016-04-26T13:18:26Z")

</div>

> [@rusty](#):
>
> You can also can close unused indexes (their data become unavailable, but it would free up the memory)

Don't do that unless you have to though: closed indices are no longer managed by ES. Meaning if a node dies with closed index shards, they will not be recovered elsewhere. Say you close an index for 2 months and you had 2 node failures in that time .. it could just be that both primary and replica shard X were discarded and never recovered. You try to open the index one day and voila: it's Red and you lost data.

Just saying 😉

---

_[View the full topic](https://discuss.elastic.co/t/elk-suddenly-colapsed/48414)._