concurrent uploading the same object sometimes results in the exception ExistingObjectIsDirectory

[tonyipm]

Describe the bug concurrent uploading the same object sometimes results in the exception ExistingObjectIsDirectory. See script below

To Reproduce #!/bin/bash

printf "abc\n" >body.txt

for ((ii=1; ii<=10; ii++)); do aws s3api put-object --endpoint-url http://10.60.0.32:7070/ --region us-east-1 --bucket test --key=object1 --body body.txt & done

wait

OUTPUT: { "ETag": "0bee89b07a248e27c83fc3d5951213c1" } { "ETag": "0bee89b07a248e27c83fc3d5951213c1" } { "ETag": "0bee89b07a248e27c83fc3d5951213c1" }

An error occurred (ExistingObjectIsDirectory) when calling the PutObject operation: Existing Object is a directory. { "ETag": "0bee89b07a248e27c83fc3d5951213c1" } { "ETag": "0bee89b07a248e27c83fc3d5951213c1" } { "ETag": "0bee89b07a248e27c83fc3d5951213c1" } { "ETag": "0bee89b07a248e27c83fc3d5951213c1" } { "ETag": "0bee89b07a248e27c83fc3d5951213c1" } { "ETag": "0bee89b07a248e27c83fc3d5951213c1" }

Expected behavior object upload to complete without error

Server Version git clone from 25 sep

Additional context