On Sep 1, 2011, at 10:53 AM, Edward Capriolo wrote: > "1.3.1.2. hadoop > > This version of HBase will only run on Hadoop 0.20.x. It will not run on > hadoop 0.21.x (nor 0.22.x). HBase will lose data unless it is running on an > HDFS that has a durable sync. Currently only the branch-0.20-append branch > has this attribute[1]. No official releases have been made from this branch > up to now so you will have to build your own Hadoop from the tip of this > branch. Michael Noll has written a detailed blog, Building an Hadoop 0.20.x > version for HBase 0.90.2, on how to build an Hadoop from branch-0.20-append. > Recommended. > > Or rather than build your own, you could use Cloudera's CDH3. CDH has the > 0.20-append patches needed to add a durable sync (CDH3 betas will suffice; > b2, b3, or b4)." > > So the setup starts by recommending rolling your own hadoop (pain in the > ass). OR using a beta ( :( ).
It's early days yet, but we seem to be converging towards having a grand unification of security and append patchsets for hadoop-0.20.205 release from Apache. Arun
