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Posted to commits@cassandra.apache.org by "Serban Teodorescu (Jira)" <ji...@apache.org> on 2019/09/27 16:22:00 UTC
[jira] [Assigned] (CASSANDRA-15337) Document usage of Ec2Snitch for
multiple regions cluster
[ https://issues.apache.org/jira/browse/CASSANDRA-15337?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Serban Teodorescu reassigned CASSANDRA-15337:
---------------------------------------------
Assignee: Serban Teodorescu
> Document usage of Ec2Snitch for multiple regions cluster
> --------------------------------------------------------
>
> Key: CASSANDRA-15337
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15337
> Project: Cassandra
> Issue Type: Improvement
> Components: Documentation/Website
> Reporter: Serban Teodorescu
> Assignee: Serban Teodorescu
> Priority: Normal
>
> Ec2MultiRegionSnitch was (probably) done because it was not possible in AWS to have intra-region VPC peering. This changed pin 2017, see [AWS announcement|https://aws.amazon.com/about-aws/whats-new/2017/11/announcing-support-for-inter-region-vpc-peering/] (and extended with 9 more regions in 2018, see [link|https://aws.amazon.com/about-aws/whats-new/2018/02/inter-region-vpc-peering-is-now-available-in-nine-additional-aws-regions/]):
> {quote}Inter-Region VPC Peering allows VPC resources like EC2 instances[...] running in different AWS regions to communicate with each other using private IP addresses, without requiring gateways, VPN connections or separate network appliances.
> {quote}
> Since the datacenter/rack names are loaded in Ec2Snitch using AWS API there is no reason why this snitch would not work in a multi-datacenter setup. I tested and used this in a production environment. So the documentation should be changed to include this usage.
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