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Is there any way to configure Amazon EC2 instances to support multicast discovery needed for EhCache

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amazon-ec2

ehcache

multicast

Is there any way to configure Amazon EC2 instances to support multicast needed for EhCache auto-discovery? (through iptables hacks etc)/

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Archer Avatar asked Apr 27 '11 08:04

Archer

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2 Answers

There is no multicast between EC2 instances. Amazon does not allow it.

There is a straight answer on the FAQ http://aws.amazon.com/vpc/faqs/#R4

You can submit a request to AWS, I am sure that you (we) are not alone facing a requirement to easily auto-scale an EHCache on amazon.

Terracotta seems to have a solution, cloud tools. http://ww1.terracotta.org/documentation/3.7/cloud-tools/get-started

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Vincent Giguère Avatar answered Oct 18 '22 10:10

Vincent Giguère

Dependent upon kernel configuration you might be able to overlay multicast on VPN connections manually wired up between each EC2 instance:

original version:

https://web.archive.org/web/20111129081152/http://www.slideshare.net/Franklin72/vpncubed-ipsec-to-ec2-gateway-test

New version for 2014:

http://www.slideshare.net/CohesiveFT/cohesiveft-vns3-configuration-documentation-for-amazon-aws

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Steve-o Avatar answered Oct 18 '22 10:10

Steve-o
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