Dear developers!

LizardFS is under evaluation on my machine. I have setup some VirtualBox VMs with the same settings:

RAM: 1024 MiB
SATA hard drive for OS: 8 GiB
SATA hard drive for distributed file system: 8 GiB
OS: CentOS 7
LizardFS version 3.12

Three chunkserver VMs are running. Each one has one dedicated 8 GiB hard drive
for storing chunk data. Master runs in its separate VM. When this setup is started, LizardFS reports free available storage space of 12 GiB. I don't know why 12 GiB but OK. Trashtime is disabled, i.e. zero.

When I invoke bonnie++ on a folder of the mounted LizardFS, bonnie++ fails:

Delete files in sequential order ... Bonnie: drastic I/O error (rmdir): Directory not empty

See attached screenshots for more details!

Do you have any idea what went wrong exactly? Are able to reproduce it?

Thank in advance again!