Correction. my github trunk patch seems to still show CDH3b2 here : <hadoop.version>0.20.2+320</hadoop.version>
But i did build and run some of my code with 0.20.2+737 on another computer. Obviously i can't verify all Mahout algorithms but everything we ever built for 0.20 old api before still happily runs with cdh distribution in production with no side effects. -Dmitriy On Mon, Dec 20, 2010 at 4:27 PM, Dmitriy Lyubimov <[email protected]> wrote: > Ben -- Also if it helps I have that CDH3 dependency integration e.g. on > this branch made to most recent Mahout trunk : > https://github.com/dlyubimov/ssvd-lsi at branch ssvd-givens and all > others. You'd need to install CDH3 jars into your local maven repository > before it compiles. Or you may just 'git diff trunk -- pom.xml' to see > /generate just the dependency patch. > > -d > > > On Mon, Dec 20, 2010 at 4:16 PM, Dmitriy Lyubimov <[email protected]>wrote: > >> Ben -- >> >> yes CDH distributions backport 0.21 patches. Basically the maven version >> of CDH3b3 says 0.20.2+737 where 737 is the number of mostly 0.21 patches >> that they backported to 0.20.2 platform. They still have pretty useful >> patches missing but their approach is to do thorough testing of those >> changes so perhaps some of the features are omited deliberately. Most ppl >> that i know (including us) use that stuff in production because of the >> combination of fixes that are hard to ignore (such as append api so >> desperately needed for latest 0.89 HBase releases) with scrutiny for >> stability that goes with it. AFAIK they also use these with their clients. >> >> -d >> >> >> On Mon, Dec 20, 2010 at 3:58 PM, Ben Clay <[email protected]> wrote: >> >>> Dmitry- >>> >>> Thanks for looking into this. >>> >>> HADOOP-2141 is indeed what we need. I am a bit confused - the JIRA page >>> (https://issues.apache.org/jira/browse/HADOOP-2141) shows it was >>> included in >>> Hadoop 0.21, but CDH3b3 appears to be based on 0.20 (shown as >>> hadoop-0.20.noarch in their yum repo). Does Cloudera typically backport >>> features like this? >>> >>> Regardless, I'll install CDH3b3 and use it. Thanks for the tip! >>> >>> -Ben >>> >>
