rclone: B2: "ERROR : : error reading destination directory: 200 calls/minute allowed for: API_LIST_FILE_NAMES_CALLED (429 too_many_requests)"

What is the problem you are having with rclone?

It is making too many calls per minute to the B2 API and then failing to recover gracefully from the resulting error.

What is your rclone version (output from rclone version)

rclone v1.47.0
- os/arch: linux/amd64
- go version: go1.12.9

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

Ubuntu 20.04 64-bit

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

crypt remote backed by B2

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

rclone check --download, can’t tell you the exact arguments since it’s run by a backup script not by me directly.

A log from the command with the -vv flag (eg output from rclone -vv copy /tmp remote:tmp)

Can’t reproduce on demand, so can’t give you a log output. This is the first time it has happened so unlikely to be able to reproduce frequently, but if I start seeing it more often I will modify the backup script to capture the verbose output.

Here’s the output I got:

2020/02/21 07:57:03 ERROR : : error reading destination directory: 200 calls/minute allowed for: API_LIST_FILE_NAMES_CALLED (429 too_many_requests)
2020/02/21 07:58:04 ERROR : : error reading destination directory: 200 calls/minute allowed for: API_LIST_FILE_NAMES_CALLED (429 too_many_requests)

I think rclone needs to be detecting this error and retrying after a suitable back-off time.