Re: Oozie on the namenode server

[Alejandro Abdelnur <tu...@cloudera.com>]

[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 <av...@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 <av...@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
> -----
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