Looking at the release tag vs the current state of branch-2, I have two concerns from the point of view of HDFS:
1) We reverted HDFS-3157 in branch-2 because it sends deletions for corrupt replicas without properly going through the "corrupt block" path. We saw this cause data loss in TestPipelinesFailover. So, I'm nervous about putting it in a release, even labeled as alpha. 2) HADOOP-8285 and HADOOP-8366 changed the wire format for the RPC envelope in branch-2, but didn't make it into this rc. So, that would mean that future alphas would not be protocol-compatible with this alpha. Per a discussion a few weeks ago, I think we all were in agreement that, if possible, we'd like all 2.x to be compatible for client-server communication, at least (even if we don't support cross-version for the intra-cluster protocols) Do other folks think it's worth rolling an rc1? I would propose either: a) Revert HDFS-3157 and commit HADOOP-8285 and HADOOP-8366 on branch-2.0.0-alpha, so these are the only changes since rc0. Roll a new rc1 from here. or: b) Discard the current branch-2.0.0-alpha and re-branch from the current state of branch-2. -Todd On Fri, May 11, 2012 at 7:19 PM, Eli Collins <e...@cloudera.com> wrote: > +1 I installed the build on a 6 node cluster and kicked the tires, > didn't find any blocking issues. > > Btw in the future better to build from the svn repo so the revision is > an svn rev from the release branch. Eg 1336254 instead of 40e90d3c7 > which is from the git mirror, this way we're consistent across > releases. > > hadoop-2.0.0-alpha $ ./bin/hadoop version > Hadoop 2.0.0-alpha > Subversion > git://devadm900.cc1.ygridcore.net/grid/0/dev/acm/hadoop-trunk/hadoop-common-project/hadoop-common > -r 40e90d3c7e5d71aedcdc2d9cc55d078e78944c55 > Compiled by hortonmu on Wed May 9 16:19:55 UTC 2012 > From source with checksum 3d9a13a31ef3a9ab4b5cba1f982ab888 > > > On Wed, May 9, 2012 at 9:58 AM, Arun C Murthy <a...@hortonworks.com> wrote: >> I've created a release candidate for hadoop-2.0.0-alpha that I would like to >> release. >> >> It is available at: >> http://people.apache.org/~acmurthy/hadoop-2.0.0-alpha-rc0/ >> >> The maven artifacts are available via repository.apache.org. >> >> Please try the release and vote; the vote will run for the usual 7 days. >> >> This is a big milestone for the Apache Hadoop community - congratulations >> and thanks for all the contributions! >> >> thanks, >> Arun >> >> >> -- >> Arun C. Murthy >> Hortonworks Inc. >> http://hortonworks.com/ >> >> -- Todd Lipcon Software Engineer, Cloudera
