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https://issues.apache.org/jira/browse/HDFS-5134?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsz Wo (Nicholas), SZE resolved HDFS-5134.
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Resolution: Fixed
Fix Version/s: Heterogeneous Storage (HDFS-2832)
Hadoop Flags: Reviewed
I have committed this. Thanks, Arpit!
> NameNode improvements to per-storage block processing
> -----------------------------------------------------
>
> Key: HDFS-5134
> URL: https://issues.apache.org/jira/browse/HDFS-5134
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: namenode
> Affects Versions: Heterogeneous Storage (HDFS-2832)
> Reporter: Arpit Agarwal
> Assignee: Tsz Wo (Nicholas), SZE
> Fix For: Heterogeneous Storage (HDFS-2832)
>
> Attachments: h5134_20130905.patch, h5134_20130906.patch
>
>
> Few tasks out of the NameNode change for multiple storage (HDFS-4987):
> # {{blockContentsStale}} should be per storage.
> # {{DatanodeDescriptor#firstBlockReport}} should also be per storage.
> # {{BlockManager#processReport}} can call {{processFirstBlockReport}} per
> storage now.
> # Synchronization for {{DatanodeDescriptor#numBlocks}} (mentioned by Nicholas
> in 4987).
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