-Re: Oozie on the namenode server
Alejandro Abdelnur 2011-08-29, 14:04
[Moving thread to Oozie aliases and hadoop's alias to BCC]
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.
On Mon, Aug 29, 2011 at 4:57 AM, Avi Vaknin <[EMAIL PROTECTED]> wrote:
> I have one more question about Oozie,
> Is there any suggested high availability solution for Oozie ?
> Something like active/passive or active/active solution.
> -----Original Message-----
> From: Harsh J [mailto:[EMAIL PROTECTED]]
> Sent: Monday, August 29, 2011 2:20 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Oozie on the namenode server
> 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 <[EMAIL PROTECTED]> wrote:
> > Hi All,
> > I want to install Oozie and I wonder if it is OK to install it on the
> > 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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