# Supervisor LogBackend 504

**URL:** <https://forums.balena.io/t/supervisor-logbackend-504/303167>\
**Category:** openBalena\
**Created:** [April 25, 2021, 4:35pm UTC](https://forums.balena.io/t/supervisor-logbackend-504/303167 "2021-04-25T16:35:53Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![bversluijs](https://sea2.discourse-cdn.com/balena/user_avatar/forums.balena.io/bversluijs/32/3954_2.png) [@bversluijs](https://forums.balena.io/u/bversluijs)\
**Post date:** [April 25, 2021, 4:35pm UTC](https://forums.balena.io/t/supervisor-logbackend-504/303167/1 "2021-04-25T16:35:53Z")

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Hi all,

While trying to upgrade my openBalena server, when testing, I get the error on the Balena supervisor:

```auto
[error] LogBackend: server responded with status code: 504

```

I must say, I don’t know at the moment if this error occurs in the previous version of openBalena, but I saw the error in the supervisor and I’m wondering what happens here.

openBalena version: v3.2.1  
hardware: Raspberry Pi 4  
balenaOS: v2.73.1+rev1 (dev image)  
Supervisor version: v12.4.6

Let me know if you need more info!

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**Author:** ![mpous](https://sea2.discourse-cdn.com/balena/user_avatar/forums.balena.io/mpous/32/4742_2.png) [@mpous](https://forums.balena.io/u/mpous)\
**Post date:** [April 30, 2021, 11:22am UTC](https://forums.balena.io/t/supervisor-logbackend-504/303167/3 "2021-04-30T11:22:44Z")

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Thank you for reporting @bversluijs

At what moment did you see that message? Could you please give us more context?

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<div class="post-metadata">

**Author:** ![bversluijs](https://sea2.discourse-cdn.com/balena/user_avatar/forums.balena.io/bversluijs/32/3954_2.png) [@bversluijs](https://forums.balena.io/u/bversluijs)\
**Post date:** [April 30, 2021, 12:22pm UTC](https://forums.balena.io/t/supervisor-logbackend-504/303167/5 "2021-04-30T12:22:14Z")

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Hi Marc,

I was just testing out the “new” openBalena release (v3.2.1), so booted up a new node pool (Kubernetes), created a new openBalena instance with a fresh config (so did the quickstart again), created an app via `balena app create`, configured a balenaOS image (via `balena os configure`) and booted the Raspberry Pi.

Everything seemed to work fine (VPN connection did it’s job, it registered fine with openBalena, downloaded releases fine), and I was just checking the supervisor logs if it had any problems and stumbled upon that error. Checked for more context with `journalctl`, but that had the same log as I posted without additional info.

That’s really the only context I have, hopefully it’s enough. Like I said, I couldn’t find any issues with the Pi itself or openBalena, but I thought it’s worth mentioning, because I don’t know if it can cause any problems.

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**Author:** ![nitish](https://avatars.discourse-cdn.com/v4/letter/n/34f0e0/32.png) [@nitish](https://forums.balena.io/u/nitish)\
**Post date:** [April 30, 2021, 2:10pm UTC](https://forums.balena.io/t/supervisor-logbackend-504/303167/6 "2021-04-30T14:10:15Z")

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Thanks Marc. Is the above error blocking any of the operations you are trying to perform?

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<div class="post-metadata">

**Author:** ![bversluijs](https://sea2.discourse-cdn.com/balena/user_avatar/forums.balena.io/bversluijs/32/3954_2.png) [@bversluijs](https://forums.balena.io/u/bversluijs)\
**Post date:** [April 30, 2021, 5:36pm UTC](https://forums.balena.io/t/supervisor-logbackend-504/303167/8 "2021-04-30T17:36:50Z")

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I think you replied to me instead of Marc, but it’s not blocking anything I tried (so far).