Hello Todd, Oh, then isn't it a bit contradictory to the instructions on HBase overview page.
http://hadoop.apache.org/hbase/docs/current/api/overview-summary.html#requirements It says that the current version of HBase works only with 0.20.X and asks users to apply the patch HDFS-630 but that patch is not available for 0.20.X. Is there any work around for this? Is that patch really required? Thank you. Regards, Raghava. On Fri, May 14, 2010 at 12:03 AM, Todd Lipcon <[email protected]> wrote: > On Thu, May 13, 2010 at 8:56 PM, Raghava Mutharaju < > [email protected]> wrote: > > > Hello Todd, > > > > Thank you for the reply. In the cluster I use here, apache Hadoop > is > > installed. So I have to use that. I am trying out HBase on my laptop > first. > > Even though I install CDH2, it won't be useful because on the cluster, I > > have to work with apache Hadoop. Since version 0.21 is still in > > development, > > there should be a HDFS-630 patch for the current stable release of Hadoop > > isn't it? > > > > No, it was not considered for release in Hadoop 0.20.X because it breaks > wire compatibility, and though I've done a workaround to avoid issues > stemming from that, it would be unlikely to pass a backport vote. > > -Todd > > On Thu, May 13, 2010 at 11:50 PM, Todd Lipcon <[email protected]> wrote: > > > > > Hi Raghava, > > > > > > Yes, that's a patch targeted at 0.20, but I'm not certain whether it > > > applies > > > on the vanilla 0.20 code or not. If you'd like a version of Hadoop that > > > already has it applied and tested, I'd recommend using Cloudera's CDH2. > > > > > > -Todd > > > > > > On Thu, May 13, 2010 at 7:59 PM, Raghava Mutharaju < > > > [email protected]> wrote: > > > > > > > Hello all, > > > > > > > > I am trying to install HBase and while going through the > > requirements > > > > (link below), it asked me to apply HDFS-630 patch. The latest 2 > patches > > > are > > > > for Hadoop 0.21. I am using version 0.20. For this version, should I > > > apply > > > > Todd Lipcon's patch at > > > > > > > > > > https://issues.apache.org/jira/secure/attachment/12430230/hdfs-630-0.20.txt > > > > . > > > > Would this be the right patch to apply? The directory structures have > > > > changed from 0.20 to 0.21. > > > > > > > > > > > > > > > > > > http://hadoop.apache.org/hbase/docs/current/api/overview-summary.html#requirements > > > > > > > > > > > > Thank you. > > > > > > > > Regards, > > > > Raghava. > > > > > > > > > > > > > > > > -- > > > Todd Lipcon > > > Software Engineer, Cloudera > > > > > > > > > -- > Todd Lipcon > Software Engineer, Cloudera >
