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https://issues.apache.org/jira/browse/CLOUDSTACK-443?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13493046#comment-13493046
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Wido den Hollander commented on CLOUDSTACK-443:
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Indeed, the loadbalancing itself is done by TCP, but the loadbalancer does
protocol specific health checks.
In the specification this should be taken into account, so we can support all
the features loadbalancers might offer with health checks.
> health monitoring for load balanced instances
> ---------------------------------------------
>
> Key: CLOUDSTACK-443
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-443
> Project: CloudStack
> Issue Type: New Feature
> Components: Network Controller
> Affects Versions: 4.1.0
> Reporter: Murali Reddy
> Assignee: Rajesh Battala
> Fix For: 4.1.0
>
>
> Enhance existing 'load balancer' network service provided by CloudStack, to
> support health monitor the load balanced instances. ADC's supported
> (NetScaler, Big IP, ADX) by CloudStack have native capabilities to monotor
> health of in the instances. Leverage that to load balance the traffic only to
> healthy instances.
> This feature shall provide capabilities to
> - to configure health check policy with load balancer rule
> - delete configured 'health check policy' associated with a load balancer
> rules
> - list/describe instance healths.
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