The below proposes pushing a working append out 6 months or so. Can we have pointers as to what is meant by 'quality issues' in the below so we can make a more informed vote or is it just the hdfs issue posted against 0.19.1? Is it there also that we would find what is involved making append work in 0.19.1?
Thanks, St.Ack On Fri, Jan 30, 2009 at 2:36 AM, Steve Loughran <ste...@apache.org> wrote: > Nigel Daley wrote: > >> Folks, >> >> Some Hadoop deployments have upgraded to 0.19.0. Clearly, the 0.19 branch >> has issues and a 0.19.1 release is needed. >> >> Quality issues in the changes made for the file append feature have >> prevented some from deploying Hadoop 0.19. One of these changes (sync) has >> now been "fixed" by reducing its semantics in Hadoop 0.18.3 (HADOOP-4997). >> This was necessary to stabilize the 0.18 branch. >> >> I would like to propose that we apply this same "fix" to sync in 0.19.1 >> and 0.20.0. Since append requires the full semantics of sync, I propose we >> also disable append (perhaps throw UnsupportedOperationException from API?). >> Yes, this would unfortunately be an incompatible change between 0.19.0 and >> 0.19.1. We can then take the time needed to fix append properly in 0.21.0. >> > > I can see some people being unhappy about this, but giving them a choice > between having the filesystem work or not, hopefully they will see the > merits of the change. And I am +1 to taking time to fix things; fast fixes > often create new problems >
