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https://issues.apache.org/jira/browse/HDFS-7159?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arpit Agarwal resolved HDFS-7159.
---------------------------------
Resolution: Fixed
Fix Version/s: HDFS-6581
Hadoop Flags: Reviewed
Thanks a lot for reviewing the large patch, Jing and Nicholas!
Jing, I filed HDFS-7170 to address the policy suite instantiation in
DFSOutputstream that Jing raised.
HDFS-6919 will address the disable via configuration point Nicholas raised.
> Use block storage policy to set lazy persist preference
> -------------------------------------------------------
>
> Key: HDFS-7159
> URL: https://issues.apache.org/jira/browse/HDFS-7159
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: namenode
> Reporter: Arpit Agarwal
> Assignee: Arpit Agarwal
> Fix For: HDFS-6581
>
> Attachments: HDFS-7159.01.patch, HDFS-7159.02.patch,
> HDFS-7159.03.patch, HDFS-7159.04.patch
>
>
> Now that HDFS-6584 feature is ready and supports block storage policies on
> both files and directories, we can make use of Storage Policies to store the
> LAZY_PERSIST preference.
> This only affects how the preference is persisted in the FsImage/Edit logs.
> There is no change to the client API or to NN-DN interaction.
> An additional advantage is that can support setting the lazy persist
> preference on a directory and it will take effect for all new files.
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