Large file being transported is blocking small file operations

[mkieboom]

To reproduce:

Create a large file in the source which will immediatly start mirroring to the destination
[mapr@maprdemo source1]$ dd if=/dev/zero of=256M.img bs=1 count=0 seek=256M

While the large file is being mirrored, create a small file:
[mapr@maprdemo source1]$ echo "123">>456.txt

The small file is currently being blocked by the large file operation which should not be the case. All operations should be executed in parallel.

[dmitriyHavrilovich]

duplicate with #30