How to reduce "451 Transfer aborted errors" or avoid the errors on rclone?

Help and Support
1

What is the problem you are having with rclone?

How to reduce "451 Transfer aborted errors" or avoid the errors on rclone?

The following error almost always be occured.

" Failed to copy: 451 Transfer aborted. Broken pipe"

It seems to automatically try to attempt 3 times against errors at once command.
Some files succeed, but some finally fail.

How to reduce "451 Transfer aborted errors" or avoid the errors on rclone?
Or to increase attempting times?

What is your rclone version (output from rclone version)

rclone v1.54.0

  • os/arch: linux/amd64
  • go version: go1.15.7

Which OS you are using and how many bits (eg Windows 7, 64 bit)

Linux version 4.4.59+ (root@build3) (gcc version 4.9.3 20150311 (prerelease) (crosstool-NG 1.20.0) ) #25426 SMP PREEMPT Mon Dec 14 18:48:52 CST 2020

Which cloud storage system are you using? (eg Google Drive)

FTP

The command you were trying to run (eg rclone copy /tmp remote:tmp)

rclone copy remote:/ /local/ --progress

The rclone config contents with secrets removed.

Paste config here

A log from the command with the -vv flag

Paste  log here
2

Hi, welcome to the forum!

Quick tip on the one question:

Or to increase attempting times?

Try using the --low-level-retries-number option (but I think the default is 10, so don't know why it only have 3 attempts as you describe..)

Don't know about the errors, perhaps someone else with experience will join in.. But perhaps as a test you could try with --transfers 1 and see if that behaves better..

3

What is the destination FTP server?

According to google it is an IBM server?

There are lots of caveats with IBM servers apparently!

--transfers 1 is good advice. You can also try the --ftp-concurrency but if you set it too low you'll get a deadlock... Using --check-first helps too.

4

The FTP server is a NAS.

I have 2 NAS.

I am trying to backup A NAS to B NAS with "rclone copy"

5

OK.

So if you want minimum pressure on the NAS then you want

--transfers 1 --checkers 1 --check-first

If that still doesn't work, then add --ftp-concurrency 1 but try not to use that flag as it can deadlock the ftp backend.