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 Matt Ellison (MattE957)
Welltok

Welltok
US
MattE957 Member since 2017 12 posts
Welltok
Posted: July 17, 2017
Last activity: July 18, 2017
Posted: 17 Jul 2017 7:51 EDT
Last activity: 18 Jul 2017 3:34 EDT
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Pega HA vs (2) ec2 instances in ELB

Hello,

In regards to running Pega in AWS, could someone explain the differences between the Pega HA setup(ELB) vs an ELB with (2) ec2 instances? What are you gaining with the Pega HA setup?

Thank you,

Matt

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Posted: 4 years ago
Posted: 18 Jul 2017 3:34 EDT
Gireesh Jayabalan (jayag1)
PEGA
Senior Systems Engineer - Cloud
Pegasystems Inc.
IN

When comparing ELB vs HAProxy, the former can feel a bit limited as far as load balancing algorithms are concerned. It supports only round robin and session stickiness. But consider cases where you need to load the balancer based on incoming URL, or on the number of connections to be handled by individual underlying servers. HAProxy can handle those, and more.


 


Pricing -->


AWS charges you for each hour or partial hour that your Elastic Load Balancer is running, and for each GB of data transferred through your Elastic Load Balancer. Since HAProxy is open source, on the other hand, setting it up and running it on an EC2 instance will cost you nothing more than the normal instance usage.