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Posted to hdfs-issues@hadoop.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2023/07/14 09:54:00 UTC
[jira] [Commented] (HDFS-13916) Distcp SnapshotDiff to support WebHDFS
[ https://issues.apache.org/jira/browse/HDFS-13916?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17743079#comment-17743079 ]
ASF GitHub Bot commented on HDFS-13916:
---------------------------------------
sadanand48 opened a new pull request, #5839:
URL: https://github.com/apache/hadoop/pull/5839
### Description of PR
Backport of change HDFS-13916 into branch-3.3
### How was this patch tested?
Unit tests.
> Distcp SnapshotDiff to support WebHDFS
> --------------------------------------
>
> Key: HDFS-13916
> URL: https://issues.apache.org/jira/browse/HDFS-13916
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: distcp, webhdfs
> Affects Versions: 3.0.1, 3.1.1
> Reporter: Xun REN
> Assignee: Xun REN
> Priority: Major
> Labels: easyfix, newbie, patch
> Fix For: 3.4.0
>
> Attachments: HDFS-13916.002.patch, HDFS-13916.003.patch, HDFS-13916.004.patch, HDFS-13916.005.patch, HDFS-13916.006.patch, HDFS-13916.007.patch, HDFS-13916.patch
>
>
> [~ljain] has worked on the JIRA: HDFS-13052 to provide the possibility to make DistCP of SnapshotDiff with WebHDFSFileSystem. However, in the patch, there is no modification for the real java class which is used by launching the command "hadoop distcp ..."
>
> You can check in the latest version here:
> [https://github.com/apache/hadoop/blob/branch-3.1.1/hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/DistCpSync.java#L96-L100]
> In the method "preSyncCheck" of the class "DistCpSync", we still check if the file system is DFS.
> So I propose to change the class DistCpSync in order to take into consideration what was committed by Lokesh Jain.
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