# Demo server: docker exec error: 137

**URL:** <https://hub.mender.io/t/demo-server-docker-exec-error-137/1660>\
**Category:** General Discussions\
**Created:** [March 19, 2020, 11:58pm UTC](https://hub.mender.io/t/demo-server-docker-exec-error-137/1660 "2020-03-19T23:58:32Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![bogdan.neagu.ext](https://avatars.discourse-cdn.com/v4/letter/b/ad7895/32.png) [@bogdan.neagu.ext](https://hub.mender.io/u/bogdan.neagu.ext)\
**Post date:** [March 19, 2020, 11:58pm UTC](https://hub.mender.io/t/demo-server-docker-exec-error-137/1660/1 "2020-03-19T23:58:32Z")

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On Debian  
Linux usmdhagmgr01 4.19.0-8-amd64 #1 SMP Debian 4.19.98-1 (2020-01-26) x86\_64 GNU/Linux

I have installed Demo mender-server integration-2.2.2.  
At first startup:  
sudo ./demo up  
I got:  
[…]  
curl: (22) The requested URL returned error: 502 Bad Gateway  
Failed to upload the Artifact to the demo server. curl error code: 22

At the subsequent retries to start the server, I am getting:

$ sudo ./demo up  
Starting the Mender demo environment…  
Creating network “integration222\_mender” with the default driver  
Creating integration222\_mender-elasticsearch\_1 … done  
Creating integration222\_minio\_1 … done  
Creating integration222\_mender-mongo\_1 … done  
Creating integration222\_mender-gui\_1 … done  
Creating integration222\_mender-redis\_1 … done  
Creating integration222\_storage-proxy\_1 … done  
Creating integration222\_mender-useradm\_1 … done  
Creating integration222\_mender-deployments\_1 … done  
Creating integration222\_mender-inventory\_1 … done  
Creating integration222\_mender-conductor\_1 … done  
Creating integration222\_mender-device-auth\_1 … done  
Creating integration222\_mender-api-gateway\_1 … done  
It does not seem the useradm service is up and running yet. Retrying…  
Creating a new user…  
docker exec error: 137

Please advise.

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<div class="post-metadata">

**Author:** ![bogdan.neagu.ext](https://avatars.discourse-cdn.com/v4/letter/b/ad7895/32.png) [@bogdan.neagu.ext](https://hub.mender.io/u/bogdan.neagu.ext)\
**Post date:** [March 20, 2020, 1:45am UTC](https://hub.mender.io/t/demo-server-docker-exec-error-137/1660/2 "2020-03-20T01:45:39Z")

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It seems that /var ran out of space, mongo could not start.

**2020-03-20T00:57:14.532+0000 I STORAGE [initandlisten] error creating journal dir /data/db/journal boost::filesystem::create\_directory: No space left on device: "/data/db/journal"**

I suggest Mender to add some minimal requirements specifically for this.

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**Author:** ![oleorhagen](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/oleorhagen/32/297_2.png) [@oleorhagen](https://hub.mender.io/u/oleorhagen)\
**Post date:** [March 20, 2020, 12:19pm UTC](https://hub.mender.io/t/demo-server-docker-exec-error-137/1660/3 "2020-03-20T12:19:55Z")

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Glad it worked out for ya 🙂

Maybe a good chance to get a first PR in? 😉