This may be related to the project split. When I went to package up 0.20.1, I realized that the release-0.20.1 tag is not in the hadoop repository but rather the hadoop-common repository. Important to know if you want to build 0.20.1 from subversion/git.
-Matt On Tue, Sep 15, 2009 at 10:47 AM, Andy Sautins <[email protected]>wrote: > > Just as a note the project releases page for common/hdfs/mapreduce (e.g. > http://hadoop.apache.org/mapreduce/releases.html ) do not have an entry > for the 0.20.1 release, but going to the download link shows 0.20.1 as the > stable release for the .20 branch. > > I suspect that is a cause of the confusion. > > Andy > > -----Original Message----- > From: Edward Capriolo [mailto:[email protected]] > Sent: Tuesday, September 15, 2009 9:44 AM > To: [email protected] > Subject: Re: Hadoop 0.20.1 (a big secret?) > > On Tue, Sep 15, 2009 at 11:35 AM, Todd Lipcon <[email protected]> wrote: > > Hi Stephen, > > > > There was an email thread about two weeks ago announcing the release > > candidate and subsequent release. > > > > Regarding Cloudera's version, the most recent one available for download > is > > based on 0.20.0, but we've included many of the bug fixes that are in > > 0.20.1. We're currently working on updating our patch series to include > the > > entirety of 0.20.1 and should have that out next week. > > > > -Todd > > > > On Tue, Sep 15, 2009 at 7:41 AM, stephen mulcahy > > <[email protected]>wrote: > > > >> Howdy, > >> > >> I'm about to install a new hadoop cluster here and I'm wondering which > >> Hadoop to install. > >> > >> Looking at http://hadoop.apache.org/common/releases.html suggests its > >> either 0.19.2 or 0.20.0 but looking in > >> http://ftp.heanet.ie/mirrors/www.apache.org/dist/hadoop/core/ I see > 0.20.1 > >> has been sitting there since 01-Sep-2009. > >> > >> A quick google suggests Cloudera are going to base their next release on > >> 0.20.1 so I'm taking this as an indication that 0.20.1 is ready for > >> primetime. > >> > >> Did I miss the announcement on 0.20.1 or is there some reason why it's > >> being kept quiet so far (if so, apologies for publicising it ;)? > >> > >> Thanks, > >> > >> -stephen > >> > >> -- > >> Stephen Mulcahy, DI2, Digital Enterprise Research Institute, > >> NUI Galway, IDA Business Park, Lower Dangan, Galway, Ireland > >> http://di2.deri.ie http://webstar.deri.ie http://sindice.com > >> > > > Stephen, > > Hadoop has branches and for the most part, major.minor.release > versioning. If you look at the svn-trunk you are always going to be > latest branch. At the current moment stable points to 18.X. > > It seems the trend community is really trying to come together around 20. > > Here is some quick notes: > > Hadoop updgrade is easy. > Downgrade between majors can be a major pita. > > I would suggest playing with the technology for a while and get a feel > for the version that is best for you. >
