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https://issues.apache.org/jira/browse/HDFS-16043?focusedWorklogId=655262&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-655262
]
ASF GitHub Bot logged work on HDFS-16043:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 26/Sep/21 09:41
Start Date: 26/Sep/21 09:41
Worklog Time Spent: 10m
Work Description: hadoop-yetus commented on pull request #3063:
URL: https://github.com/apache/hadoop/pull/3063#issuecomment-927271218
:broken_heart: **-1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
| +0 :ok: | reexec | 0m 42s | | Docker mode activated. |
|||| _ Prechecks _ |
| +1 :green_heart: | dupname | 0m 1s | | No case conflicting files
found. |
| +0 :ok: | codespell | 0m 0s | | codespell was not available. |
| +1 :green_heart: | @author | 0m 0s | | The patch does not contain
any @author tags. |
| +1 :green_heart: | test4tests | 0m 0s | | The patch appears to
include 15 new or modified test files. |
|||| _ trunk Compile Tests _ |
| +1 :green_heart: | mvninstall | 31m 42s | | trunk passed |
| +1 :green_heart: | compile | 1m 23s | | trunk passed with JDK
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 |
| +1 :green_heart: | compile | 1m 19s | | trunk passed with JDK
Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| +1 :green_heart: | checkstyle | 1m 6s | | trunk passed |
| +1 :green_heart: | mvnsite | 1m 24s | | trunk passed |
| +1 :green_heart: | javadoc | 0m 57s | | trunk passed with JDK
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 |
| +1 :green_heart: | javadoc | 1m 26s | | trunk passed with JDK
Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| +1 :green_heart: | spotbugs | 3m 9s | | trunk passed |
| +1 :green_heart: | shadedclient | 21m 7s | | branch has no errors
when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| -1 :x: | mvninstall | 0m 41s |
[/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3063/10/artifact/out/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs.txt)
| hadoop-hdfs in the patch failed. |
| -1 :x: | compile | 0m 42s |
[/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3063/10/artifact/out/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt)
| hadoop-hdfs in the patch failed with JDK
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04. |
| -1 :x: | javac | 0m 42s |
[/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3063/10/artifact/out/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt)
| hadoop-hdfs in the patch failed with JDK
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04. |
| -1 :x: | compile | 0m 39s |
[/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3063/10/artifact/out/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt)
| hadoop-hdfs in the patch failed with JDK Private
Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10. |
| -1 :x: | javac | 0m 39s |
[/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3063/10/artifact/out/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt)
| hadoop-hdfs in the patch failed with JDK Private
Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10. |
| +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks
issues. |
| -0 :warning: | checkstyle | 0m 57s |
[/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3063/10/artifact/out/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt)
| hadoop-hdfs-project/hadoop-hdfs: The patch generated 6 new + 639 unchanged
- 2 fixed = 645 total (was 641) |
| -1 :x: | mvnsite | 0m 41s |
[/patch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3063/10/artifact/out/patch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt)
| hadoop-hdfs in the patch failed. |
| +1 :green_heart: | xml | 0m 1s | | The patch has no ill-formed XML
file. |
| -1 :x: | javadoc | 0m 29s |
[/patch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3063/10/artifact/out/patch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt)
| hadoop-hdfs in the patch failed with JDK
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04. |
| -1 :x: | javadoc | 1m 20s |
[/results-javadoc-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3063/10/artifact/out/results-javadoc-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt)
|
hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10
with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 generated 1 new
+ 1 unchanged - 0 fixed = 2 total (was 1) |
| -1 :x: | spotbugs | 0m 42s |
[/patch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3063/10/artifact/out/patch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt)
| hadoop-hdfs in the patch failed. |
| -1 :x: | shadedclient | 9m 34s | | patch has errors when building
and testing our client artifacts. |
|||| _ Other Tests _ |
| -1 :x: | unit | 0m 45s |
[/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3063/10/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt)
| hadoop-hdfs in the patch failed. |
| +1 :green_heart: | asflicense | 0m 31s | | The patch does not
generate ASF License warnings. |
| | | 78m 51s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.41 ServerAPI=1.41 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3063/10/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/3063 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient spotbugs checkstyle codespell xml |
| uname | Linux c6cf12821443 4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9
23:41:39 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/bin/hadoop.sh |
| git revision | trunk / 35ddddb2b518683a5d33ad5599c4b64b3da58526 |
| Default Java | Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| Multi-JDK versions |
/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04
/usr/lib/jvm/java-8-openjdk-amd64:Private
Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| Test Results |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3063/10/testReport/ |
| Max. process+thread count | 546 (vs. ulimit of 5500) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U:
hadoop-hdfs-project/hadoop-hdfs |
| Console output |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3063/10/console |
| versions | git=2.25.1 maven=3.6.3 spotbugs=4.2.2 |
| Powered by | Apache Yetus 0.14.0-SNAPSHOT https://yetus.apache.org |
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Issue Time Tracking
-------------------
Worklog Id: (was: 655262)
Time Spent: 4h 40m (was: 4.5h)
> HDFS : Delete performance optimization
> --------------------------------------
>
> Key: HDFS-16043
> URL: https://issues.apache.org/jira/browse/HDFS-16043
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs, namanode
> Affects Versions: 3.4.0
> Reporter: Xiangyi Zhu
> Assignee: Xiangyi Zhu
> Priority: Major
> Labels: pull-request-available
> Attachments: 20210527-after.svg, 20210527-before.svg
>
> Time Spent: 4h 40m
> Remaining Estimate: 0h
>
> The deletion of the large directory caused NN to hold the lock for too long,
> which caused our NameNode to be killed by ZKFC.
> Through the flame graph, it is found that its main time-consuming
> calculation is QuotaCount when removingBlocks(toRemovedBlocks) and deleting
> inodes, and removeBlocks(toRemovedBlocks) takes a higher proportion of time.
> h3. solution:
> 1. RemoveBlocks is processed asynchronously. A thread is started in the
> BlockManager to process the deleted blocks and control the lock time.
> 2. QuotaCount calculation optimization, this is similar to the optimization
> of this Issue HDFS-16000.
> h3. Comparison before and after optimization:
> Delete 1000w Inode and 1000w block test.
> *before:*
> remove inode elapsed time: 7691 ms
> remove block elapsed time :11107 ms
> *after:*
> remove inode elapsed time: 4149 ms
> remove block elapsed time :0 ms
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