Hi,
what are the options to keep a copy of data from an HDFS instance in
sync with a backup file system which is not HDFS? Are there Rsync-like
tools that allow only to transfer deltas or would one have to implement
that oneself (e.g. by writing a java program that accesses both
filesystems)?
Thanks in advance,
Robert
P.S.: Why would one want that? E.g. to have a completely redundant copy
which in case of systematic failure (e.g. data corruption due to a bug)
offers a backup not affected by that problem.