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upload API only works for very small files
Hello,
I try this command from my raspberry pi 2 with raspbian buster:
curl -v -X POST https://content.dropboxapi.com/2/files/upload --header "Authorization: Bearer xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx...
ags65 We looked into this, and it seems like you may be running in to this issue:
https://www.raspberrypi.org/forums/viewtopic.php?t=223026
As noted there, you can try:
To stop sending DFs, you can change net.ipv4.ip_no_pmtu_disc value to 1 in sysctl.
I would also try reducing the MTU on the interface in order to advertise a smaller MSS to the TCP peer.
Wow... If content of 'data' field match exactly to the posted file... hands up... I haven't more ideas. Isn't there something missing at the end? The content there is JSON-ASCII encoded! Decode it before compare if need (or opposite). For example, encode the file you passed using:
python3 -c "import json;import sys;f=open(sys.argv[1],'r');print(json.dumps(f.read()));f.close()" /home/pi/Dropbox-Uploader/Cromosoma.cc
And compare the result to 'data' field content above.
Yes, the content of "data" field match to the file:
"data": "/** @file Cromosoma.cc\n @brie...... << crom[i];\n }\n cout << endl;\n}\n",
print(json.dumps):
"/** @file Cromosoma.cc\n @brie...... << crom[i];\n }\n cout << endl;\n}\n"
no missing characters at the end.
- Greg-DB
Dropbox Community Moderator
Unfortunately I don't know what the issue may be here. We'll try to look into it, but I can't make any promises as it seems to be client-specific, based on the observation that it doesn't occur on your other computer.
Thank you Greg, I understand.
I will communicate if I make new advances.
- Greg-DB
ags65 We looked into this, and it seems like you may be running in to this issue:
https://www.raspberrypi.org/forums/viewtopic.php?t=223026
As noted there, you can try:
To stop sending DFs, you can change net.ipv4.ip_no_pmtu_disc value to 1 in sysctl.
I would also try reducing the MTU on the interface in order to advertise a smaller MSS to the TCP peer. Amazing, now it works !!!
The parameter ip_no_pmtu_disc does not seem to influence but I have lowered the value of the MTU from 1500 to 1200 and now the uploads work without problems
Thank you very much to both of you.
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