Invalid http response 504 in upload response (Perkeep Uploader (Android))

[tgulacsi78]

Just a reminder to my future me and anybody using Perkeep behind Nginx.

If your Uploader stops with such warning:

2019/09/29 05:15:21 Warning: error uploading file map after finding server dup of [sha224-d50aa95f42fb2b35264e644e72e076dc6e81b5a44e11432f9ceb3c90]: invalid http response 504 in upload response

2019/09/29 05:16:09 Warning: error uploading file map after finding server dup of [sha224-87c3913de42d997f3cd9ad8366083f2ee3a8870df30b5b00fada895b]: invalid http response 504 in upload response
2019/09/29 05:18:51 Warning: error uploading file map after finding server dup of [sha224-67f38797dfb0f07c7969246fb5aad8791df39aa2877f74236fe90815]: invalid http response 504 in upload response

2019/09/29 05:19:12 Error uploading /storage/0123-4567/DCIM/Camera/VID_20181018_165640.mp4: invalid http response 504 in upload response

It's the Nginx which responds with 504 when it thinks that the Perkeep server does not respond (in time).

When I tested those urls with HEAD, it did respond, just not promptly enough for the default 60s nginx timeout.

So set a long "proxy_read_timeout" in your nginx config!

Sorry for the noise!

Tamás Gulácsi

[tgulacsi78]

Another nginx solution if webhooks does not work (UI doesn't update automatically and has "Server disconnected") in the menu:

nginx needs to enable webhooks explicitly:

map $http_upgrade $connection_upgrade {

  default upgrade;
  '' close;

}

proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $connection_upgrade;

[Mathieu Lonjaret]

Cool. I think I hadn't managed to make websockets work by default when
I was trying to improve the packaging of Perkeep for Synology. So this
is good to know, if I ever come back to that.

I personally use Traefik instead of Nginx (yes, I am biased), and I
forgot to come back to debugging why websockets were broken for
Perkeep in that case as well.

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