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From Paweł Wiejacha (JIRA) <j...@apache.org>
Subject [jira] [Commented] (SPARK-25787) [K8S] Spark can't use data locality information
Date Thu, 25 Jul 2019 18:25:00 GMT

    [ https://issues.apache.org/jira/browse/SPARK-25787?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16893043#comment-16893043
] 

Paweł Wiejacha commented on SPARK-25787:
----------------------------------------

I *can* reproduce this issue. In Spark UI, Locality Level is always ANY instead of NODE_LOCAL
when reading data from HDFS.

As Yinan Li said, it seems that:

> Support for data locality on k8s has not been ported to the upstream Spark repo yet.

I think that at least the pull request below should be ported and merged to support HDFS data
locality in Spark on Kubernetes.

https://github.com/apache-spark-on-k8s/spark/pull/216

Could you please reopen this issue?

> [K8S] Spark can't use data locality information
> -----------------------------------------------
>
>                 Key: SPARK-25787
>                 URL: https://issues.apache.org/jira/browse/SPARK-25787
>             Project: Spark
>          Issue Type: Bug
>          Components: Kubernetes
>    Affects Versions: 2.4.0
>            Reporter: Maciej Bryński
>            Priority: Major
>
> I started experimenting with Spark based on this presentation:
> https://www.slideshare.net/databricks/hdfs-on-kuberneteslessons-learned-with-kimoon-kim
> I'm using excelent https://github.com/apache-spark-on-k8s/kubernetes-HDFS
> charts to deploy HDFS.
> Unfortunately reading from HDFS gives ANY locality for every task.
> Is data locality working on Kubernetes cluster ?



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