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https://issues.apache.org/jira/browse/HADOOP-13715?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Manoj Govindassamy updated HADOOP-13715:
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Attachment: HADOOP-13715.01.patch
[~drankye], [~rakeshr],
bq. I could see encryption feature has exposed APIs like, HdfsFileStatus has
#getFileEncryptionInfo() exposed and FileStatus contains #isEncrypted() flag,
to tell whether the underlying file or directory is encrypted or not. imho, EC
could expose APIs in similar lines.
Yes, I am extending {{FsPermissionExtension}} to include Erasure Coded status
just like in Encryption
[~andrew.wang],
bq. I just reviewed HDFS-6984 which redoes FileStatus to serialize via
protobuf, which will add a bitfield to FileStatus for flags like this. If we
also add a bitfield to HdfsFileStatus, this JIRA should become easier.
I hope HDFS-6984 will take care of folding in the newly added {{erasureBit}} to
HdfsFileStatus. If this patch
Attaching v01 patch to make FileStatus expose isErasureCoded() via a new bit
in FsPermissionExtension. To be consistent with encryption and acl bit
approach, this patch doesn't intend to change any on-disk formats.
[~andrew.wang], can you please take a look at the patch ?
> Add isErasureCoded() API to FileStatus class
> --------------------------------------------
>
> Key: HADOOP-13715
> URL: https://issues.apache.org/jira/browse/HADOOP-13715
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs
> Affects Versions: 3.0.0-alpha1
> Reporter: Wei-Chiu Chuang
> Assignee: Manoj Govindassamy
> Priority: Blocker
> Labels: hdfs-ec-3.0-must-do
> Attachments: HADOOP-13715.01.patch
>
>
> Per the discussion in
> [HDFS-10971|https://issues.apache.org/jira/browse/HDFS-10971?focusedCommentId=15567108&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15567108]
> I would like to add a new API {{isErasureCoded()}} to {{FileStatus}} so that
> tools and downstream applications can tell if it needs to treat a file
> differently.
> Hadoop tools that can benefit from this effort include: distcp and
> teragen/terasort.
> Downstream applications such as flume or hbase may also benefit from it.
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