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https://issues.apache.org/jira/browse/HDFS-15363?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shilun Fan updated HDFS-15363:
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Component/s: block placement
Hadoop Flags: Reviewed
Target Version/s: 3.3.1, 3.2.2, 3.4.0
Affects Version/s: 3.3.1
3.2.2
3.4.0
> BlockPlacementPolicyWithNodeGroup should validate if it is initialized by
> NetworkTopologyWithNodeGroup
> ------------------------------------------------------------------------------------------------------
>
> Key: HDFS-15363
> URL: https://issues.apache.org/jira/browse/HDFS-15363
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: block placement
> Affects Versions: 3.2.2, 3.3.1, 3.4.0
> Reporter: Hemanth Boyina
> Assignee: Hemanth Boyina
> Priority: Major
> Fix For: 3.2.2, 3.3.1, 3.4.0
>
> Attachments: HDFS-15363-testrepro.patch, HDFS-15363.001.patch
>
>
> BlockPlacementPolicyWithNodeGroup type casts the initialized clusterMap
> {code:java}
> NetworkTopologyWithNodeGroup clusterMapNodeGroup =
> (NetworkTopologyWithNodeGroup) clusterMap {code}
> If clusterMap is an instance of DFSNetworkTopology we get a ClassCastException
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