Re: Changing iinstance type for everynode in the cluster

From: Ramon Ramirez-Linan <no email>
Date: Thu, 18 Sep 2014 10:04:11 -0400

Rayson,

Thanks for your help.
Unfortunately this is not an option for me since it doesnt scale. I am
deploying 300 and 3000 nodes cluster, the 30 one is just for testing.

Ramon

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Navteca
Ramon Ramirez-Linan
C: 301.789.9139
O: 202.505.1553
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6301 Ivy Lane, Greenbelt, MD 20770
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On Thu, Sep 18, 2014 at 1:17 AM, Rayson Ho <raysonlogin_at_gmail.com> wrote:

> I've never tried something like this myself, but I believe it would work
> if you stop the EBS cluster (*NOT* terminate), and then change the instance
> type from the EC2 management Console, and then restart the cluster, then
> StarCluster would happily reconfig the cluster for you:
>
>
> http://star.mit.edu/cluster/docs/latest/manual/launch.html#stopping-an-ebs-backed-cluster
>
> Just a reboot won't do it, as the private IP address changes when you
> change the instance type, and /etc/hosts would need to be changed again.
>
> (Test with a 2-node t1.micro cluster and change the type to t2.micro
> before doing anything experimental on a real production cluster.)
>
> Rayson
>
> ==================================================
> Open Grid Scheduler - The Official Open Source Grid Engine
> http://gridscheduler.sourceforge.net/
> http://gridscheduler.sourceforge.net/GridEngine/GridEngineCloud.html
>
> On Wed, Sep 17, 2014 at 10:53 PM, Ramon Ramirez-Linan <rlinan_at_navteca.com>
> wrote:
>
>> Hi,
>>
>> Is there a way of changing the instance type for the entire cluster after
>> it has already be launched?
>>
>> I want to launch a 30 nodes cluster with a cheaper instance type to
>> ingest data on each node's volume. Each node has a 1TB EBS attached and
>> there is no need to share data between nodes (no nfs or anything). Then
>> once the data is injected on each node I want to be able to change the
>> cluster instances to a more expensive one (more CPU/RAM)
>>
>> Will cluster reboot let me do that?
>>
>> Thanks in advance
>>
>>
>>
>> [image: logo]
>> Navteca
>> Ramon Ramirez-Linan
>> C: 301.789.9139
>> O: 202.505.1553
>> *www.navteca.com <http://www.navteca.com/>*
>>
>> 6301 Ivy Lane, Greenbelt, MD 20770
>> Suite 700
>>
>> [image: script]
>> [image: https://s3.amazonaws.com/www.navteca.com/img/certified.png]
>>
>> _______________________________________________
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>> http://mailman.mit.edu/mailman/listinfo/starcluster
>>
>>
>



Received on Thu Sep 18 2014 - 10:04:14 EDT