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https://issues.apache.org/jira/browse/HDFS-3689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14283152#comment-14283152
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Tsz Wo Nicholas Sze commented on HDFS-3689:
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- For concat,
-* We also need to enforce the same replication in concat if we don't want to
update disk quota.
-* Let's move the code for checking src parent directory to verifySrcFiles. We
should print out the path when creating an IllegalArgumentException.
-* In addition, could you also check if debug is enabled in
FSDirConcatOp.concat? Otherwise, it will compute the srcs string even if debug
is disabled.
- Unintentional format change in PBHelper.convertEditsResponse(..)? There is a
long line.
- Let's also chanage WebHDFS to support append to new block. We may do it
separately.
> 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
>
>
> 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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