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https://issues.apache.org/jira/browse/MAPREDUCE-7470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17841032#comment-17841032
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ASF GitHub Bot commented on MAPREDUCE-7470:
-------------------------------------------
hadoop-yetus commented on PR #6469:
URL: https://github.com/apache/hadoop/pull/6469#issuecomment-2078561571
:broken_heart: **-1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
|||| _ Prechecks _ |
| +1 :green_heart: | dupname | 0m 00s | | No case conflicting files
found. |
| +0 :ok: | spotbugs | 0m 00s | | spotbugs executables are not
available. |
| +0 :ok: | codespell | 0m 00s | | codespell was not available. |
| +0 :ok: | detsecrets | 0m 00s | | detect-secrets was not available.
|
| +1 :green_heart: | @author | 0m 01s | | The patch does not contain
any @author tags. |
| -1 :x: | test4tests | 0m 00s | | The patch doesn't appear to include
any new or modified tests. Please justify why no new tests are needed for this
patch. Also please list what manual steps were performed to verify this patch.
|
|||| _ trunk Compile Tests _ |
| +1 :green_heart: | mvninstall | 88m 55s | | trunk passed |
| +1 :green_heart: | compile | 5m 06s | | trunk passed |
| +1 :green_heart: | checkstyle | 4m 30s | | trunk passed |
| +1 :green_heart: | mvnsite | 4m 59s | | trunk passed |
| +1 :green_heart: | javadoc | 4m 29s | | trunk passed |
| +1 :green_heart: | shadedclient | 143m 04s | | branch has no errors
when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 3m 16s | | the patch passed |
| +1 :green_heart: | compile | 2m 18s | | the patch passed |
| +1 :green_heart: | javac | 2m 18s | | the patch passed |
| +1 :green_heart: | blanks | 0m 01s | | The patch has no blanks
issues. |
| +1 :green_heart: | checkstyle | 2m 03s | | the patch passed |
| +1 :green_heart: | mvnsite | 2m 28s | | the patch passed |
| +1 :green_heart: | javadoc | 2m 02s | | the patch passed |
| +1 :green_heart: | shadedclient | 155m 09s | | patch has no errors
when building and testing our client artifacts. |
|||| _ Other Tests _ |
| +1 :green_heart: | asflicense | 5m 16s | | The patch does not
generate ASF License warnings. |
| | | 410m 29s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| GITHUB PR | https://github.com/apache/hadoop/pull/6469 |
| JIRA Issue | MAPREDUCE-7470 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets |
| uname | MINGW64_NT-10.0-17763 153407ddae7f 3.4.10-87d57229.x86_64
2024-02-14 20:17 UTC x86_64 Msys |
| Build tool | maven |
| Personality | /c/hadoop/dev-support/bin/hadoop.sh |
| git revision | trunk / ca1b7f9e6bf7e6bc06b1ba01aef25aa0d3ba1a04 |
| Default Java | Azul Systems, Inc.-1.8.0_332-b09 |
| Test Results |
https://ci-hadoop.apache.org/job/hadoop-multibranch-windows-10/job/PR-6469/1/testReport/
|
| modules | C:
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core
U:
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core |
| Console output |
https://ci-hadoop.apache.org/job/hadoop-multibranch-windows-10/job/PR-6469/1/console
|
| versions | git=2.44.0.windows.1 |
| Powered by | Apache Yetus 0.14.0 https://yetus.apache.org |
This message was automatically generated.
> multi-thread mapreduce v1 FileOutputcommitter
> ---------------------------------------------
>
> Key: MAPREDUCE-7470
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7470
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: mrv2
> Reporter: TianyiMa
> Priority: Major
> Labels: mapreduce, pull-request-available
> Attachments: MAPREDUCE-7470.0.patch
>
>
> In cloud environment, such as aws, aliyun etc., the internet delay is
> non-trival when we commit thounds of files.
> In our situation, the ping delay is about 0.03ms in IDC, but when move to
> Coud, the ping delay is about 3ms, which is roughly 100x slower. We found
> that, committing tens thounds of files will cost a few tens of minutes. The
> more files there are, the logger it takes.
> So we propose a new committer algorithm, which is a variant of committer
> algorithm version 1, called 3. In this new algorithm 3, in order to decrease
> the committer time, we use a thread pool to commit job's final output.
> Our test result in Cloud production shows that, the new algorithm 3 has
> decrease the committer time by serveral tens of times.
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