Mailing-List: contact common-user-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
Reply-To: common-user@hadoop.apache.org
Received-SPF: pass (nike.apache.org: domain of tucu@cloudera.com designates
 209.85.218.48 as permitted sender)
MIME-Version: 1.0
In-Reply-To: <004901cc6642$ddb2a990$9917fcb0$@com>
References: <003d01cc6631$0e721550$2b563ff0$@com>
 <CAOcnVr30fK4DQ_+N-ATnShs+BkVUGR80uE1qncCeUJHymx743A@mail.gmail.com>
 <004901cc6642$ddb2a990$9917fcb0$@com>
From: Alejandro Abdelnur <tucu@cloudera.com>
Date: Mon, 29 Aug 2011 07:04:45 -0700
Message-ID: 
 <CAJs-t7NPftg=AaU2eyctzjk8Z7dnWE-qR9nQN0s9qXWbjRetpQ@mail.gmail.com>
Subject: Re: Oozie on the namenode server
To: oozie-dev@incubator.apache.org
Content-Type: multipart/alternative; boundary=bcaec5299a03820ca804aba5743e

--bcaec5299a03820ca804aba5743e
Content-Type: text/plain; charset=ISO-8859-1

[Moving thread to Oozie aliases and hadoop's alias to BCC]

Avi,

Currently you can have a cold standby solution.

An Oozie setup consists of 2 systems, a SQL DB (storing all Oozie jobs
state) and a servlet container (running Oozie proper). You need you DB to be
high available. You need to have a second installation of Oozie configured
identically to the running on stand by. If the running Oozie fails, you
start the second one.

The idea (we once did a prototype using Zookeeper) is to eventually support
a multithreaded Oozie server, that would give both high-availability and
horizontal scalability. Still you'll need a High Available DB.

Thanks.

Alejandro


On Mon, Aug 29, 2011 at 4:57 AM, Avi Vaknin <avivaknin13@gmail.com> wrote:

> Hi,
> I have one more question about Oozie,
> Is there any suggested high availability solution for Oozie ?
> Something like active/passive or active/active solution.
> Thanks.
>
> Avi
>
> -----Original Message-----
> From: Harsh J [mailto:harsh@cloudera.com]
> Sent: Monday, August 29, 2011 2:20 PM
> To: common-user@hadoop.apache.org
> Subject: Re: Oozie on the namenode server
>
> Avi,
>
> Should be OK to do so at this stage. However, keep monitoring loads on
> the machines to determine when to move things out to their own
> dedicated boxes.
>
> On Mon, Aug 29, 2011 at 3:20 PM, Avi Vaknin <avivaknin13@gmail.com> wrote:
> > Hi All,
> >
> > I want to install Oozie and I wonder if it is OK to install it on the
> name
> > node or maybe I need to install dedicated server to it.
> >
> > I have a very small Hadoop cluster (4 datanodes + namenode + secondary
> > namenode).
> >
> > Thanks for your help.
> >
> >
> >
> > Avi
> >
> >
>
>
>
> --
> Harsh J
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 10.0.1392 / Virus Database: 1520/3864 - Release Date: 08/28/11
>
>

--bcaec5299a03820ca804aba5743e--