Network error: create multipart upload: service error

[majinghe]

backgroup

When uploading object which exceeds 1GB, rc cp will show error

Network error: create multipart upload: service error

For example, xiaomage.txt file is generated by dd and the size is 10GB, then uploading the object to one bucket

rc ls rustfs
[2026-05-09 07:34:51]         0B my-test-bucket/
[2026-05-09 09:55:02]         0B my-test-bucket-1g/
[2026-05-09 10:12:12]         0B test-2/
[2026-05-09 10:12:15]         0B test-3/
[2026-05-09 10:12:18]         0B test-4/
[2026-05-09 07:31:37]         0B warp-benchmark-bucket/

rc cp xiaomage.txt rustfs/test-4
✗ Failed to upload xiaomage.txt: Network error: create multipart upload: service error

If the object size is small, uploading can work fine

echo "hello world" > 1.txt
rc cp 1.txt rustfs/test-3
1.txt -> rustfs/test-3/1.txt (6 B)