I'd just like to add that I've been reviewing HADOOP-9361 for Steve and
think it's pretty close, but would appreciate a look from the broader HDFS
audience.
The spec is pretty explicit about just being an attempt to document HDFS'
current behavior, so there's no danger of the text locking us into
Something I've been doing as a spare-time activity is trying to specify
what filesystems are expected to do -using HDFS as the reference, being
rigorous about expectations (size of file in ls == size of data in file,
seek(0) always works, seek(-ve) always fails, close() idempotent), slightly
tuning
