# HA and Service performance

**URL:** <https://discuss.kubernetes.io/t/ha-and-service-performance/12847>\
**Category:** General Discussions\
**Created:** [September 16, 2020, 9:33pm UTC](https://discuss.kubernetes.io/t/ha-and-service-performance/12847 "2020-09-16T21:33:37Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![DavidG](https://avatars.discourse-cdn.com/v4/letter/d/bbce88/32.png) [@DavidG](https://discuss.kubernetes.io/u/DavidG)\
**Post date:** [September 16, 2020, 9:33pm UTC](https://discuss.kubernetes.io/t/ha-and-service-performance/12847/1 "2020-09-16T21:33:38Z")

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Dears,

Is it possible to achieve real HA using internal kubernetes ingress controller without external active/passive load balancing?

And second question: if I expose service with type LoadBalancer does it mean that all traffic and load goes through single node?

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**Author:** ![mrbobbytables](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.kubernetes.io/mrbobbytables/32/7_2.png) [@mrbobbytables](https://discuss.kubernetes.io/u/mrbobbytables)\
**Post date:** [September 17, 2020, 12:39pm UTC](https://discuss.kubernetes.io/t/ha-and-service-performance/12847/2 "2020-09-17T12:39:28Z")

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> [@DavidG](#):
>
> Is it possible to achieve real HA using internal kubernetes ingress controller without external active/passive load balancing?
> 
> And second question: if I expose service with type LoadBalancer does it mean that all traffic and load goes through single node?

For both questions, it really depends on the environment you’re in.

servicetype `LoadBalancer` is a an extension of a `HostPort` service that interacts with something (often outside the cluster) to direct traffic to the `HostPort`. A port will be exposed on every node in the cluster and traffic will be redirected to pods backing your service. If you have a single pod targeted by that service, all your traffic will go through a single pod.

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**Author:** ![thockin](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.kubernetes.io/thockin/32/2457_2.png) [@thockin](https://discuss.kubernetes.io/u/thockin)\
**Post date:** [September 18, 2020, 3:34am UTC](https://discuss.kubernetes.io/t/ha-and-service-performance/12847/3 "2020-09-18T03:34:39Z")

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Small nit: Service LBs _can_ target a NodePort but they can also target a VIP.