HTTPError: 502 Server Error: Bad Gateway

Daniel Zuidinga

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Aug 25, 2016, 2:35:34 PM8/25/16

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When I post data to firebase via python from time to time I get the error:

HTTPError: 502 Server Error: Bad Gateway

This seems to be random. I can't identify the reason. Sometimes I have also problems getting data from firebase via c#. After some retries it works.

Jacob Wenger

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Aug 30, 2016, 2:27:23 AM8/30/16

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Hey Daniel,

Are you using the REST API? Or a third-party wrapper?

Does your Firebase project happen to be on a server that experienced downtime during your testing (check the status dashboard here)? You can find which server your Firebase project is on by navigating to:

https://<DATABASE_NAME>.firebaseio.com/.settings/owner.json

Make sure to replace <DATABASE_NAME> with the name of your database.

Cheers,

Jacob

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Tony Meng

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Aug 30, 2016, 3:07:19 PM8/30/16

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Daniel,

As Jacob mentioned, if you can provide us your database name as well as the server you're on, we can investigate further for you and let you know what's going on on our side.

Thanks,

Tony

On Monday, August 29, 2016 at 11:27:23 PM UTC-7, Jacob Wenger wrote:

Hey Daniel,

Are you using the REST API? Or a third-party wrapper?

Does your Firebase project happen to be on a server that experienced downtime during your testing (check the status dashboard here)? You can find which server your Firebase project is on by navigating to:

https://<DATABASE_NAME>.firebaseio.com/.settings/owner.json

Make sure to replace <DATABASE_NAME> with the name of your database.

Cheers,
Jacob

On Thu, Aug 25, 2016 at 11:35 AM, 'Daniel Zuidinga' via Firebase Google Group <fireba...@googlegroups.com> wrote:

When I post data to firebase via python from time to time I get the error:

HTTPError: 502 Server Error: Bad Gateway

This seems to be random. I can't identify the reason. Sometimes I have also problems getting data from firebase via c#. After some retries it works.

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Dušan Plavák

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Oct 10, 2016, 11:20:18 AM10/10/16

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Hi there,

I have exactly the same problem. For some reason python throws an error:

File "/some/path/python3.5/site-packages/requests/models.py", line 862, in raise_for_status

raise HTTPError(http_error_msg, response=self)

requests.exceptions.HTTPError: 502 Server Error: Bad Gateway for url: https://ibetproject.firebaseio.com/...

Server is:

s-usc1c-nss-120.firebaseio.com

and DB name is:

ibetproject

Could you look at it?

From my observation it can be something with size of put request. Because some put request are just fine, but others will fail wit 502 Bad Gateway

Dňa utorok, 30. augusta 2016 21:07:19 UTC+2 Tony Meng napísal(-a):

Tony Meng

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Oct 10, 2016, 1:18:19 PM10/10/16

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Hi Dušan,

I've been trying to reproduce the issue without much success. I am hoping you can help me go a bit deeper. If you could answer the following questions, that'd be super helpful.

1. How long have you been seeing the issue?

2. What payload are you uploading?

3. What version of requests are you using?

4. Are you using auth?

Thanks!

Tony

Tony Meng

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Oct 10, 2016, 7:47:24 PM10/10/16

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Also, if you add the query param `?print=silent` does that fix your issue?

Tony Meng

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Oct 11, 2016, 1:49:53 PM10/11/16

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We believe the reason to be caused by the `debug` param set to 'true' in your auth token. For writes, with debug set, the response includes the full payload. So for large writes, the response may be very large.

We're actively working on mitigating this issue on our side; to make the response header named 'X-Firebase-Auth-Debug' of reasonable size.

I will let you know when we have pushed this fix. In the meantime, if you remove the debug param from your auth header, you can bypass this issue as well.

Tony Meng

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Oct 12, 2016, 5:38:57 PM10/12/16

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We have rolled out a fix for the Firebases listed in this thread.

JimJty

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Dec 14, 2016, 9:05:20 PM12/14/16

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Was this fix rolled out to all Firebases? I have been having this problem for months (I handle it by reposting on failure), finally got fed up after my unit tests were failing.

Here is my server name:

s-usc1c-nss-131.firebaseio.com

and

s-usc1c-nss-134.firebaseio.com

Thanks, Jim

Jacob Wenger

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Dec 15, 2016, 12:55:37 PM12/15/16

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Hey Jim,

This thread is from a couple months ago, so almost certainly the change has made it to all Firebase Database. Please reach out through our personalized support channel so we can help you with your specific problem.

Cheers,
Jacob

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