In Hbase we stumbled on unexpected behaviour, which could
HDFS-6478 fixed wrong exception
translation, but that apparently led to unexpected bahaviour:
clients trying to create file without override=true will be forced
to retry hardcoded amount of time (60 seconds).
That could break or slowdown systems, that use filesystem
for locks (like hbase fsck did, and we got it broken
We should make this behaviour configurable, do client really need
to wait lease timeout to be sure that file doesn't exists, or it it should
be enough to fail fast.