What sort of data are you searching and what sort of searches are they
against it?

Regards,
Mark Walkom

Infrastructure Engineer
Campaign Monitor
email: [email protected]
web: www.campaignmonitor.com


On 7 August 2014 04:20, Geoff <[email protected]> wrote:

> Hi,
>
> First I will apologize for most likely a naive question.  I am currently
> building out our elasticsearch implementation from a single node, to a 3
> node cluster.  I have followed most of the tutorials I have found on the
> internet, but it seems my cluster is slower by up to 3x versus the single
> node we are currently using.  When I do a search on our cluster, I see all
> the drives get pegged to 100% utilization, and the iowait gets up to around
> 70 on each node.  When I do the same query on the single node, I don't even
> see a hit to the disk, and very little cpu.  Here is our current setup in
> AWS:
>
> single node:
>
> m3.large
> 1 750GB 200 PIOPS drive
> elasticserch 0.90.7
>
> Cluster:
>
> 3 c3.xlarge
> 1 200GB 400 PIOPS drive
> elasticsearch 1.2.2
>
>
> The data for the cluster is spread across all 3 nodes, and I mean each node
> has the complete set of the data.  The single node is using all default
> configuration, but the cluster nodes are just using these added configs:
>
>   'cluster.routing.allocation.node_initial_primaries_recoveries' => '4'
>   'cluster.routing.allocation.node_concurrent_recoveries' => '2'
>   'indices.recovery.max_bytes_per_sec' => '20mb'
>   'indices.recovery.concurrent_streams' => '5'
>   'index.number_of_replicas' => '2'
>
> Are there any other configuration options I should add to get better search
> performance?
>
> Thank you for your time.
>
> Geoff
>
>
>
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