id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	launchpad_bug
439	don't write corrupt >12GiB files	warner	warner	"I suspect that an attempt to write files that are larger than 12GiB will result in a corrupted file, as the ""self._data_size"" (i.e. share size) in !WriteBucketProxy overflows the 4-byte space reserved for it.  #346 is about removing that limit, but in the interim we need an assert or a precondition or something that will make sure we don't appear to succeed when we in fact fail.

I'm marking this as critical because it can cause data loss: you think you've uploaded the file, you get a read-cap for it, but then you can't read it back.

A precondition() in !WriteBucketProxy.__init__ would be sufficient.
"	defect	closed	critical	1.1.0	code-encoding	1.0.0	fixed