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From Abhinay Mehta <abhinay.me...@gmail.com>
Subject Re: Upgrading Hadoop from CDH3b3 to CDH3
Date Thu, 21 Oct 2010 14:56:25 GMT
I've got a couple of wines saved up, could be useful for this upgrade.
Thanks for the heads-up.

On 20 October 2010 17:23, Michael Segel <michael_segel@hotmail.com> wrote:

>
> CDH3B3 is the latest.
>
> My suggestion is that you get a large bottle of your favorite alcoholic
> beverage and enjoy it while you're doing this upgrade.
>
> In B3 you have user hadoop going to hdfs and the introduction of user
> mapred.
> So your hdfs stuff has to be owned by hdfs:hadoop and mapred stuff owned by
> mapred:hadoop.
> (That's group hadoop btw)
>
> Then you have to make sure that your unix directories have the correct file
> permissions because if they don't hadoop fails.
>
> Also since you're not using the start-all, start-hbase scripts you have to
> write your own script that uses the /etc/init.d/hadoop* scripts.
>
> Then there are zookeeper issues...
>
> But when all said and done... its more stable than hbase-0.20.3 (Cloudera's
> earlier release of Hbase) and 0.89 seems fairly stable in B3. (We're still
> testing it and trying to break it.)
>
> HTH
>
> -Mike
>
>
> > Date: Wed, 20 Oct 2010 13:53:11 +0100
> > Subject: Re: Upgrading Hadoop from CDH3b3 to CDH3
> > From: abhinay.mehta@gmail.com
> > To: common-user@hadoop.apache.org
> >
> > Yes you are right, we obviously have beta2 installed on our cluster too.
> > Thanks.
> >
> > On 20 October 2010 12:35, ed <hadoopnode@gmail.com> wrote:
> >
> > > I don't think there is a stable CDH3 yet although we've been using
> CDH3B2
> > > and it has been pretty stable for us.  (at least I don't see it
> available
> > > on
> > > their website and they JUST announced CDH3B3 last week at HadoopWorld.
> > >
> > > ~Ed
> > >
> > >
> > > On Wed, Oct 20, 2010 at 5:57 AM, Abhinay Mehta <
> abhinay.mehta@gmail.com
> > > >wrote:
> > >
> > > > Hi all,
> > > >
> > > > We currently have Cloudera's Hadoop beta 3 installed on our cluster,
> we
> > > > would like to upgrade to the latest stable release CDH3.
> > > > Is there documentation or recommended steps on how to do this?
> > > >
> > > > We found some docs on how to upgrade from CDH2 and CDHb2 to CDHb3
> here:
> > > >
> > > >
> > >
> https://docs.cloudera.com/display/DOC/Hadoop+Upgrade+from+CDH2+or+CDH3b2+to+CDH3b3
> > > > Are the same steps recommended to upgrade to CDH3?
> > > >
> > > > I'm hoping it's a lot easier to upgrade from beta3 to the latest
> stable
> > > > version than that document states?
> > > >
> > > > Thank you.
> > > > Abhinay Mehta
> > > >
> > >
>
>

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