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https://issues.apache.org/jira/browse/HDFS-3689?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jing Zhao updated HDFS-3689:
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Attachment: HDFS-3689.008.patch
Thanks for the comments, Colin. To use CreateFlag is a good suggestion. Update
the patch to address your comments.
Currently the patch targets for 3.0. We can merge this into 2.x after making
sure this feature does not break existing applications' functionalities. So far
I only checked {{FileInputFormat}} and looks like variable length block may
only affect its performance but will not break its functionality.
> Add support for variable length block
> -------------------------------------
>
> Key: HDFS-3689
> URL: https://issues.apache.org/jira/browse/HDFS-3689
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: datanode, hdfs-client, namenode
> Affects Versions: 3.0.0
> Reporter: Suresh Srinivas
> Assignee: Jing Zhao
> Attachments: HDFS-3689.000.patch, HDFS-3689.001.patch,
> HDFS-3689.002.patch, HDFS-3689.003.patch, HDFS-3689.003.patch,
> HDFS-3689.004.patch, HDFS-3689.005.patch, HDFS-3689.006.patch,
> HDFS-3689.007.patch, HDFS-3689.008.patch
>
>
> Currently HDFS supports fixed length blocks. Supporting variable length block
> will allow new use cases and features to be built on top of HDFS.
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