The volume TTL and file TTL are not necessarily the same. as long as
file TTL is smaller than volume TTL, it'll be fine.
volume TTL is used when assigning file id, e.g.
http://.../dir/assign?ttl=3h
file TTL is used when uploading
New issue 45 by hieu.hcmus@gmail.com: [Compact issue] Offset overflow
http://code.google.com/p/weed-fs/issues/detail?id=45
You are using uint32(Maximum 4Gb) to store needle offset(Maximum 32Gb)
when compacting.
Currently It is ok if the volume size is < 4gb
Change variable "offset" in ScanVolumeFile function to uint64 to fix the
issue.