# Error when recovering... although database is only 600Mo

**URL:** https://forums.rocket.chat/t/error-when-recovering-although-database-is-only-600mo/2905
**Category:** Community Support
**Created:** [January 12, 2019, 6:34pm UTC](https://forums.rocket.chat/t/error-when-recovering-although-database-is-only-600mo/2905 "2019-01-12T18:34:16Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Julianoe](https://sea1.discourse-cdn.com/flex021/user_avatar/forums.rocket.chat/julianoe/32/811_2.png) [@Julianoe](https://forums.rocket.chat/u/Julianoe)
#### Post date: [January 12, 2019, 6:34pm UTC](https://forums.rocket.chat/t/error-when-recovering-although-database-is-only-600mo/2905/1 "2019-01-12T18:34:16Z")

</div>

@sing.li I could not add on our exchange so i’m creating a new topic.

Answering to that message

> [@Migration from bundle package to snap](https://forums.rocket.chat/t/migration-from-bundle-package-to-snap/2124/8):
>
> hmmm… seems you’re running 32 bit mongo server … the limit is 2GB on 32 bit mongo. Your DB size is 500MB uncompressed, right?

Ok, noted, i think i read that somewhere indeed.

But the thing is i’m not above 2GB.  
Once i extract the tarball of my backup and run `du -hs` in the folder it says it is 597MB (533MB compressed in tar).  
Should i try to delete files to make it even smaller?

When i import i only get this error in mongorestore.log though ☹

```auto
ERROR: ld.so: object '/usr/lib/arm-linux-gnueabihf/libarmmem.so' from /etc/ld.so.preload cannot be preloaded (cannot open shared object file): ignored.
connected to: 127.0.0.1
2019-01-12T18:02:26.765+0100 var/snap/rocketchat-server/1278/dump/parties/rocketchat_livechat_visitor.bson
2019-01-12T18:02:26.765+0100 going into namespace [parties.rocketchat_livechat_visitor]
2019-01-12T18:02:26.765+0100 dropping
assertion: 15936 Creating collection parties.rocketchat_livechat_visitor failed. Errmsg: exception: can't map file memory - mongo requires 64 bit build for larger datasets

```