task-runner backup-utility : increase s3 multipart chunk size
Large uploads fail to be uploaded to the s3 backup bucket.
This can be resoled by choosing larger chunks for multipart uplaods, eg
--multipart-chunk-size-mb=128 or by disabling multipart alltogether
--disable-multipart (not recommended)
ERROR: Parameter problem: Chunk size 15 MB results in more than 10000 chunks. Please increase --multipart-chunk-size-mb
And for some reason s3cmd also runs DeUnicodising on the binary file contents (and that's not because python-magic isn't installed), but that's not what's me preventing to get backups.