Thanks a lot.. On Wed, Feb 23, 2011 at 3:12 PM, Eric <eric.x...@gmail.com> wrote:
> Cloudera offers a nice distribution and decent documentation of how to > install. > When you get started, start using the "old", deprecated API as others have > pointed out before. It's most complete and most stable for now. > > 2011/2/23 MONTMORY Alain <alain.montm...@thalesgroup.com> > > Hi, >> >> >> >> For my point of view it is not a trivial question… >> >> >> >> The latest "stable release" is 0.20.2 (embedded in cloudera CH3) (and not >> 0.21)… >> >> When you start with hadoop recently (end 2010 for me) you are facing "old >> API" depreceated, so you start with using new API… >> >> But in 0.20.2 not all the new API are available under mapreduce (example >> MultipleInput is not available), so you try 0.21 version where it is >> available… >> >> But the 0.21 seems for me not very stable (we are facing a "null pointer >> exeception" in framework logs without any idea to solve it), so we scope >> down to 0.20.2 and we are using "Old API". >> >> >> >> search " Re: Which version to choose" in the mailing list and follow the >> advice of Todd Lipton. >> >> The "old API" are not so depreceated, they will be supported for years >> because there is thousand jobs running on them. The "new API" could be used >> when a stable release will be up (0.22, 0.23..). >> >> >> >> It is the feeback of my personal experience where i lost time trying to >> use the latest 0.21 version… Since i use cloudera 0.20.2+320 with old API >> and i don't have any problem (we are also using Cascading to simplify MR >> writting with very little overhead on performance (6%) versus native hadoop >> MR jobs. Overall we gain 4,65 factor versus traditionnal RDBMS approach…. >> >> >> >> Hopes this help you, >> >> >> >> regards >> >> >> >> Alain >> >> [@@THALES GROUP RESTRICTED@@] >> >> >> >> *De :* real great.. [mailto:greatness.hardn...@gmail.com] >> *Envoyé :* mercredi 23 février 2011 04:42 >> *À :* mapreduce-user@hadoop.apache.org >> *Objet :* easiest way to install hadoop >> >> >> >> Hi, >> Very trivial question. >> Which is the easiest way to install hadoop? >> i mean which distribution should i go for?? apache or cloudera? >> n which is the easiest os for hadoop? >> >> -- >> Regards, >> R.V. >> > > -- Regards, R.V.
