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Forum Discussion
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.
Greg-DB
Dropbox Staff
Dropbox StaffUnfortunately 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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