Hi Harsh， Thanks very much for your detailed explanation!
For 1.x line, we really want to know which release could be used by us, so have further questions: - Is 1.2.0 more advanced that 1.1.1? - Do we have general release time of above two releases? For 2.x line: - Will its stable release contain all fixes and features of 1.x line? - Can we know the general release time of the coming stable release of 2.x line? Sam Liu 2012/11/28 Harsh J <ha...@cloudera.com> > Hi, > > [Speaking with HDFS in mind] > > The 1.x line is the current stable/maintenance line that has features > similar to that of 0.20.x before it, with append+sync and security features > added on top of the pre-existing HDFS. > > The 2.x line carries several fixes and brand-new features (high > availability, protobuf RPCs, federated namenodes, etc.) for HDFS, along > with several performance optimizations, and is quite a big improvement over > the 1.x line. The last release of 2.x, was 2.0.2, released a couple of > months ago IIRC. This branch is very new, and is approaching full stability > soon (Although, there's been no blocker kinda problems with HDFS at least, > AFAICT). > > 3.x is an placeholder value for "trunk", it has not been branched for any > release yet. We are currently focussed on improving the 2.x line further. > > > On Wed, Nov 28, 2012 at 9:01 AM, sam liu <samliuhad...@gmail.com> wrote: > > > Hi Experts, > > > > Who can answer my following questions? We want to know which release is > > suitable to us.Thanks a lot! > > > > - What's the difference between release 1.1.1, 1.2.0 and 3.0.0? > > - What are their release time? > > > > Sam Liu > > > > > > -- > Harsh J >
