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https://issues.apache.org/jira/browse/FLINK-12884?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yang Wang updated FLINK-12884:
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Parent: FLINK-14460
Issue Type: Sub-task (was: Task)
> Implement HighAvailabilityService based on native k8s APIs
> ----------------------------------------------------------
>
> Key: FLINK-12884
> URL: https://issues.apache.org/jira/browse/FLINK-12884
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Coordination
> Reporter: MalcolmSanders
> Assignee: MalcolmSanders
> Priority: Major
>
> Currently flink only supports HighAvailabilityService using zookeeper. As a
> result, it requires a zookeeper cluster to be deployed on k8s cluster if our
> customers needs high availability for flink. If we support
> HighAvailabilityService based on native k8s APIs, it will save the efforts of
> zookeeper deployment as well as the resources used by zookeeper cluster. It
> might be especially helpful for customers who run small-scale k8s clusters so
> that flink HighAvailabilityService may not cause too much overhead on k8s
> clusters.
> Previously [FLINK-11105|https://issues.apache.org/jira/browse/FLINK-11105]
> has proposed a HighAvailabilityService using etcd. As [~NathanHowell]
> suggested in FLINK-11105, since k8s doesn't expose its own etcd cluster by
> design (see [Securing etcd
> clusters|https://kubernetes.io/docs/tasks/administer-cluster/configure-upgrade-etcd/#securing-etcd-clusters]),
> it also requires the deployment of etcd cluster if flink uses etcd to
> achieve HA.
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