HADOOP-7450 (and its subs for HDFS and MR) have patches for 0.22 now.
On Fri, Oct 28, 2011 at 10:53AM, Konstantin Boudnik wrote:
> Great news! The progress is pretty spectacular I'd say.
> I am slowly working on Jetty back-port. Unfortunately, other things require my
> attention too. Hopefully, it will be finished over next a couple days or so.
> On Fri, Oct 28, 2011 at 02:29AM, Konstantin Shvachko wrote:
> > Hi everybody,
> > We reached the homestretch for hadoop-0.22 release.
> > The testing proceeds very well.
> > - The builds are building
> > - HDFS and MR are running under load well now.
> > - We applied pretty simple custom patches to make Hive (7) and Pig (8)
> > work with 0.22.
> > - HBase (92), which is expected to be released in the near future as I
> > hear, is fully compatible with 0.22.
> > There are 4 main items remaining on my plate.
> > 1. We are down to four blockers, which represent three issues:
> > HADOOP-7035. Document incompatible API changes between releases
> > MAPREDUCE-1100 / 1716. User's task-logs filling up local disks on the
> > TaskTrackers
> > HDFS-2498. TestParallelRead times out
> > I'd like also to include
> > HDFS-1900. Clean up config key collision between common and HDFS
> > and potentially further bug fixes.
> > 2. Assemble build is needed.
> > By assemble build I mean a Jenkins target which produces a tarball
> > that includes all three sub-projects. It is like a daily build. One of
> > this builds is assigned to be release a candidate and then the
> > release. We can do it in traditional way, based on scripts developed
> > in HADOOP-6846. Or we can try to do it with BigTop.
> > 3. Jetty upgrade.
> > 0.22 branch is on Jetty 6.1.14, while everything else moved to 6.1.26.
> > Based on experiments I ran with Jetty 6.1.14 tasks hang forever if
> > things go wrong, while with Jetty 6.1.26 you get a lot of "fetch
> > failure"s. The latter at least fails fast, and does not need manual
> > intervention, so I'd go for the upgrade.
> > 4. Documentation.
> > In addition to HADOOP-7035, which according to Tom needs a rerun of
> > the tool, we need to confirm the documentation is up to date. I think
> > it is, but re-checking would be good.
> > I seek help from the good people of Hadoopland on these last steps.
> > If you have suggestions for inclusion or plan to help with the items,
> > please reply to the thread or drop me a line. I understand the next
> > two weeks will be busy with conferences. I plan to release after
> > Apachecon by mid November. If the assemble build is ready soon people
> > will be able to try it early.
> > Thanks,
> > --Konstantin