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https://issues.apache.org/jira/browse/HDFS-14147?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16737809#comment-16737809
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Vrushali C commented on HDFS-14147:
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Thanks [~yzhou2001]! That helps set the context for me.
I have re-triggered the build for this patch at
https://builds.apache.org/job/PreCommit-HDFS-Build/25936/console
For some reason the previous build had timed out:
https://builds.apache.org/job/PreCommit-HDFS-Build/25923/console
> Backport of HDFS-13056 to the 2.9 branch: "Expose file-level composite CRCs
> in HDFS"
> ------------------------------------------------------------------------------------
>
> Key: HDFS-14147
> URL: https://issues.apache.org/jira/browse/HDFS-14147
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: datanode, distcp, hdfs
> Affects Versions: 2.9.0, 2.9.1, 2.9.2
> Reporter: Yan
> Priority: Major
> Attachments: HDFS-14147-branch-2.9-001.patch,
> HDFS-14147-branch-2.9-001.patch, HDFS-14147.pdf
>
>
> HDFS-13056, Expose file-level composite CRCs in HDFS which are comparable
> across different instances/layouts, is a significant feature for storage
> agnostic CRC comparisons between HDFS and cloud object stores such as S3 and
> GCS. With the extensively installed base of Hadoop 2, it should make a lot of
> sense to have the feature in Hadoop 2.
> The plan is to start with the backporting to 2.9, followed by 2.8 and 2.7 in
> that order.
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