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https://issues.apache.org/jira/browse/HDFS-17120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17747480#comment-17747480
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ASF GitHub Bot commented on HDFS-17120:
---------------------------------------
hadoop-yetus commented on PR #5885:
URL: https://github.com/apache/hadoop/pull/5885#issuecomment-1651686956
:confetti_ball: **+1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
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|||| _ Prechecks _ |
| +1 :green_heart: | dupname | 0m 1s | | No case conflicting files
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| +1 :green_heart: | @author | 0m 0s | | The patch does not contain
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| +1 :green_heart: | test4tests | 0m 0s | | The patch appears to
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|||| _ trunk Compile Tests _ |
| +1 :green_heart: | mvninstall | 31m 35s | | trunk passed |
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| +1 :green_heart: | compile | 0m 24s | | trunk passed with JDK
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| +1 :green_heart: | javadoc | 0m 28s | | trunk passed with JDK
Ubuntu-11.0.19+7-post-Ubuntu-0ubuntu120.04.1 |
| +1 :green_heart: | javadoc | 0m 24s | | trunk passed with JDK
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|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 0m 19s | | the patch passed |
| +1 :green_heart: | compile | 0m 18s | | the patch passed with JDK
Ubuntu-11.0.19+7-post-Ubuntu-0ubuntu120.04.1 |
| +1 :green_heart: | javac | 0m 18s | | the patch passed |
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issues. |
| -0 :warning: | checkstyle | 0m 13s |
[/results-checkstyle-hadoop-tools_hadoop-distcp.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5885/8/artifact/out/results-checkstyle-hadoop-tools_hadoop-distcp.txt)
| hadoop-tools/hadoop-distcp: The patch generated 1 new + 20 unchanged - 0
fixed = 21 total (was 20) |
| +1 :green_heart: | mvnsite | 0m 18s | | the patch passed |
| +1 :green_heart: | javadoc | 0m 16s | |
hadoop-tools_hadoop-distcp-jdkUbuntu-11.0.19+7-post-Ubuntu-0ubuntu120.04.1 with
JDK Ubuntu-11.0.19+7-post-Ubuntu-0ubuntu120.04.1 generated 0 new + 37 unchanged
- 4 fixed = 37 total (was 41) |
| +1 :green_heart: | javadoc | 0m 16s | |
hadoop-tools_hadoop-distcp-jdkPrivateBuild-1.8.0_362-8u372-ga~us1-0ubuntu1~20.04-b09
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| +1 :green_heart: | spotbugs | 0m 37s | | the patch passed |
| +1 :green_heart: | shadedclient | 20m 55s | | patch has no errors
when building and testing our client artifacts. |
|||| _ Other Tests _ |
| +1 :green_heart: | unit | 13m 20s | | hadoop-distcp in the patch
passed. |
| +1 :green_heart: | asflicense | 0m 29s | | The patch does not
generate ASF License warnings. |
| | | 96m 22s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.43 ServerAPI=1.43 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5885/8/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/5885 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
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| uname | Linux b944c168be7f 4.15.0-212-generic #223-Ubuntu SMP Tue May 23
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| Build tool | maven |
| Personality | dev-support/bin/hadoop.sh |
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| Test Results |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5885/8/testReport/ |
| Max. process+thread count | 560 (vs. ulimit of 5500) |
| modules | C: hadoop-tools/hadoop-distcp U: hadoop-tools/hadoop-distcp |
| Console output |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5885/8/console |
| versions | git=2.25.1 maven=3.6.3 spotbugs=4.2.2 |
| Powered by | Apache Yetus 0.14.0 https://yetus.apache.org |
This message was automatically generated.
> Support snapshot diff based copylisting for flat paths.
> -------------------------------------------------------
>
> Key: HDFS-17120
> URL: https://issues.apache.org/jira/browse/HDFS-17120
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Sadanand Shenoy
> Assignee: Sadanand Shenoy
> Priority: Major
> Labels: pull-request-available
>
> Currently for Diff-based copyListing that is used during the distcpSync step
> of an incremental copy by default the SimpleCopyListing implementation is
> used. In it's implementation it iterates through the DiffReport and if the
> DiffType is Create and the path is a directory, it recursively traverses the
> directory and adds the subpaths to the resultant copyList.
> This works fine for implementations of snapshotDiff that include only
> top-level directories as part of its DiffReport . Suppose a snapshotDiff
> implementation outputs only flat paths that include both the directory and
> sub-directory subpath in its DiffReport, it will lead to duplicate paths in
> the copyList and throws DuplicateFileException.
>
> For example
> Ozone filesystem implementation of snapdiff b/w 2 snapshots shows all
> subpaths as part of the diff.
> {code:java}
> [~]# ozone sh snapshot create vol11/buck1 snap1
> [~]# ozone sh snapshot create vol11/buck2 snap1
> [~]# ozone fs -mkdir ofs://ozone1/vol11/buck1/dir1
> [ ~]# ozone fs -mkdir ofs://ozone1/vol11/buck1/dir1/dir11
> [ ~]# ozone fs -mkdir ofs://ozone1/vol11/buck1/dir1/dir11/dir111
> [~]# ozone sh snapshot create vol11/buck1 snap2
> [~]# ozone sh snapshot diff vol11/buck1 snap1 snap2
> Difference between snapshot: snap1 and snapshot: snap2
> + ./dir1
> + ./dir1/dir11
> + ./dir1/dir11/dir111 {code}
> we can see even though dir11 & dir111 are subpaths they are present in
> snapdiff , This is not the case for HDFS though.
> This Jira aims to create a new copyListing impl that is used for diff based
> copyListing that doesn't traverse the directory but only adds paths that are
> present in its diff.
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