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Update discovery-ec2.asciidoc

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Changed the recommendation to use Tribe Node to Cross Cluster Search.
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Jay Greenberg 2017-11-07 10:18:38 -05:00 committed by GitHub
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docs/plugins/discovery-ec2.asciidoc
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@ -223,7 +223,7 @@ Prefer https://aws.amazon.com/amazon-linux-ami/[Amazon Linux AMIs] as since Elas
* Networking throttling takes place on smaller instance types in both the form of https://lab.getbase.com/how-we-discovered-limitations-on-the-aws-tcp-stack/[bandwidth and number of connections]. Therefore if large number of connections are needed and networking is becoming a bottleneck, avoid https://aws.amazon.com/ec2/instance-types/[instance types] with networking labeled as `Moderate` or `Low`.
* Multicast is not supported, even when in an VPC; the aws cloud plugin which joins by performing a security group lookup.
* When running in multiple http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-regions-availability-zones.html[availability zones] be sure to leverage {ref}/allocation-awareness.html[shard allocation awareness] so that not all copies of shard data reside in the same availability zone.
* Do not span a cluster across regions. If necessary, use a tribe node.
* Do not span a cluster across regions. If necessary, use a cross cluster search.
===== Misc
* If you have split your nodes into roles, consider https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/Using_Tags.html[tagging the EC2 instances] by role to make it easier to filter and view your EC2 instances in the AWS console.