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Zookeeper, mail # user - EC2 disk configuration for zookeeper? One big disk or two smaller ones per node?


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Re: EC2 disk configuration for zookeeper? One big disk or two smaller ones per node?
Ted Dunning 2012-10-09, 16:44
I have some experience with these.

On Tue, Oct 9, 2012 at 4:47 PM, Eric Fleischman <[EMAIL PROTECTED]>wrote:

> * Using high IOPS instances
>

Haven't tried this.
> * Using multiple disks and doing OS level RAID across them to present a
> single logical disk to the app
>

This typically is very dangerous unless you can somehow arrange for disks
not to present lowest common denominator performance.
> * Local vs. EBS volumes
>

Local tends to be much lower variance.  EBS can show 10:1 variations in
performance.  Even the same volume can change dramatically over time.

 * Standard vs. provisioned IOPS w/EBS
>

Haven't tried this.