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https://issues.apache.org/jira/browse/HDFS-9608?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei Zhou updated HDFS-9608:
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Attachment: HDFS-9608.01.patch
This patch insure choosing volumes in RR mode for each storage type. Besides,
it uses storage-type-level lock to allow concurrent choosing of different
storage types. Thanks!
> Disk IO imbalance in HDFS with heterogeneous storages
> -----------------------------------------------------
>
> Key: HDFS-9608
> URL: https://issues.apache.org/jira/browse/HDFS-9608
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Wei Zhou
> Assignee: Wei Zhou
> Attachments: HDFS-9608.01.patch
>
>
> Currently RoundRobinVolumeChoosingPolicy use a shared index to choose volumes
> in HDFS with heterogeneous storages, this leads to non-RR choosing mode for
> certain type of storage.
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