oops, sorry, by really required I meant, would that problem arise only in any special situations or is it required for normal operations also.
Regards, Raghava. On Fri, May 14, 2010 at 12:11 AM, Raghava Mutharaju < [email protected]> wrote: > 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 >> > >
