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From "Nanda kumar (Jira)" <j...@apache.org>
Subject [jira] [Commented] (HDDS-1871) Remove anti-affinity rules from k8s minkube example
Date Thu, 22 Aug 2019 08:41:00 GMT

    [ https://issues.apache.org/jira/browse/HDDS-1871?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16913140#comment-16913140
] 

Nanda kumar commented on HDDS-1871:
-----------------------------------

Committed this to ozone-0.4.1 branch.

> Remove anti-affinity rules from k8s minkube example
> ---------------------------------------------------
>
>                 Key: HDDS-1871
>                 URL: https://issues.apache.org/jira/browse/HDDS-1871
>             Project: Hadoop Distributed Data Store
>          Issue Type: Bug
>          Components: kubernetes
>            Reporter: Elek, Marton
>            Assignee: Elek, Marton
>            Priority: Blocker
>              Labels: pull-request-available
>             Fix For: 0.4.1, 0.5.0
>
>          Time Spent: 1.5h
>  Remaining Estimate: 0h
>
> HDDS-1646 introduced real persistence for k8s example deployment files which means that
we need anti-affinity scheduling rules: Even if we use statefulset instead of daemonset we
would like to start one datanode per real nodes.
> With minikube we have only one node therefore the scheduling rule should be removed to
enable at least 3 datanodes on the same physical nodes.
> How to test:
> {code}
>  mvn clean install -DskipTests -f pom.ozone.xml
> cd hadoop-ozone/dist/target/ozone-0.5.0-SNAPSHOT/kubernetes/examples/minikube
> minikube start
> kubectl apply -f .
> kc get pod
> {code}
> You should see 3 datanode instances.



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