[Swift-devel] Re: plan for 0.5 release

[Ben Clifford]

> Can you explain a bit more about the "data channel doesn't work for a bunch of
> sites" problem?

There's some channel reuse code that went into cog in the past few months. 
It gets enabled when it detects that it has been pointed at a specific 
version of the GridFTP server (which is in itself a bug as it should 
really work for lots of versions). The code appears to not work. So when 
Swift is pointed at a gridftp server of that version, it cannot stage in 
or out files. When it is pointed at a different version gridftp server, 
the two bugs cancel each other out - data channel reuse is not used, and 
so Swift can stage files in and out.

--