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a1ad9b3f46
Before this change, uploading to an existing bucket on Ceph (radosgw)
could fail with:
BucketAlreadyExists: 409 Conflict
when rclone attempted to create the destination bucket (which it does
by default unless --s3-no-check-bucket is set).
The Ceph rgw S3 implementation never returns BucketAlreadyOwnedByYou;
it returns BucketAlreadyExists for every CreateBucket on an existing
bucket, even one the caller owns. With the use_already_exists quirk
set to true, rclone wraps BucketAlreadyExists as a non-retriable error
and aborts the transfer.
The Ceph provider used to set useAlreadyExists = true explicitly. When
the s3 providers were converted to YAML files in f28c83c, Ceph did not
set use_already_exists so it picked up the default of true (via
set(&opt.UseAlreadyExists, true, provider.Quirks.UseAlreadyExists)),
which matched the previous behaviour but is the wrong setting for
Ceph.
This sets use_already_exists: false for the Ceph provider so rclone
ignores BucketAlreadyExists on CreateBucket and continues with the
upload.
Side effect: this partially reverts #7871 for the Ceph provider. If a
user tries to create a bucket on Ceph that is actually owned by
someone else, rclone will no longer fail fast at CreateBucket time;
the subsequent object PUT will fail instead. This is unavoidable on
Ceph since the server does not distinguish "already owned by you" from
"owned by someone else".