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https://issues.apache.org/jira/browse/HDFS-6961?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jing Zhao resolved HDFS-6961.
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Resolution: Fixed
Hadoop Flags: Reviewed
I've committed this.
> Archival Storage: BlockPlacementPolicy#chooseTarget should check each valid
> storage type in each choosing round
> ---------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-6961
> URL: https://issues.apache.org/jira/browse/HDFS-6961
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: balancer, namenode
> Reporter: Jing Zhao
> Assignee: Jing Zhao
> Attachments: HDFS-6961.000.patch, HDFS-6961.001.patch,
> HDFS-6961.002.patch, HDFS-6961.002.patch, HDFS-6961.003.patch
>
>
> Currently in each choosing round of BlockPlacementPolicy#chooseTarget (e.g.,
> round 1 for choosing local storage, round 2 for remote rack, etc.), we only
> take into account the first storage type in the storage type list. This may
> fail to choose the local machine or sometimes may even fail to choose enough
> nodes.
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