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Posted to common-issues@hadoop.apache.org by GitBox <gi...@apache.org> on 2021/11/25 06:45:43 UTC
[GitHub] [hadoop] smarthanwang opened a new pull request #3721: HADOOP-18023. Allow cp command to run with multi threads.
smarthanwang opened a new pull request #3721:
URL: https://github.com/apache/hadoop/pull/3721
JIRA: https://issues.apache.org/jira/browse/HADOOP-18023
### Description of PR
Allow hadoop fs -cp command to run with multi-thread to improve copy speed.
### How was this patch tested?
It's useful to allow -cp command to run with multi-thread, like the improvement we done for -put/-get commands. It would reduce about 90% time cost when run with 10 threads in my test cases.
#### Source dir: 1 dir 401 files 2.3G
##### Test 1: run with single thread
```
time hadoop fs -cp /tmp/data/test /tmp/data/t1
real 1m9.394s
user 0m16.688s
sys 0m5.331s
```
##### Test 2: run with 10 threads
```
time hadoop fs -cp -t 10 /tmp/data/test /tmp/data/t2
real 0m8.217s
user 0m19.864s
sys 0m8.776s
```
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[GitHub] [hadoop] smarthanwang commented on pull request #3721: HADOOP-18023. Allow cp command to run with multi threads.
Posted by GitBox <gi...@apache.org>.
smarthanwang commented on pull request #3721:
URL: https://github.com/apache/hadoop/pull/3721#issuecomment-979087555
Hi @sodonnel @Hexiaoqiao, can you please take a look? Thanks.
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[GitHub] [hadoop] hadoop-yetus commented on pull request #3721: HADOOP-18023. Allow cp command to run with multi threads.
Posted by GitBox <gi...@apache.org>.
hadoop-yetus commented on pull request #3721:
URL: https://github.com/apache/hadoop/pull/3721#issuecomment-979077580
:confetti_ball: **+1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
| +0 :ok: | reexec | 0m 43s | | Docker mode activated. |
|||| _ Prechecks _ |
| +1 :green_heart: | dupname | 0m 0s | | No case conflicting files found. |
| +0 :ok: | codespell | 0m 1s | | codespell was not available. |
| +0 :ok: | markdownlint | 0m 1s | | markdownlint 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 2 new or modified test files. |
|||| _ trunk Compile Tests _ |
| +1 :green_heart: | mvninstall | 35m 23s | | trunk passed |
| +1 :green_heart: | compile | 26m 34s | | trunk passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 |
| +1 :green_heart: | compile | 22m 43s | | trunk passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| +1 :green_heart: | checkstyle | 1m 7s | | trunk passed |
| +1 :green_heart: | mvnsite | 1m 50s | | trunk passed |
| +1 :green_heart: | javadoc | 1m 20s | | trunk passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 |
| +1 :green_heart: | javadoc | 1m 53s | | trunk passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| +1 :green_heart: | spotbugs | 2m 54s | | trunk passed |
| +1 :green_heart: | shadedclient | 24m 22s | | branch has no errors when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 1m 7s | | the patch passed |
| +1 :green_heart: | compile | 26m 53s | | the patch passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 |
| +1 :green_heart: | javac | 26m 53s | | the patch passed |
| +1 :green_heart: | compile | 24m 26s | | the patch passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| +1 :green_heart: | javac | 24m 26s | | the patch passed |
| +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks issues. |
| +1 :green_heart: | checkstyle | 1m 10s | | hadoop-common-project/hadoop-common: The patch generated 0 new + 12 unchanged - 12 fixed = 12 total (was 24) |
| +1 :green_heart: | mvnsite | 1m 50s | | the patch passed |
| +1 :green_heart: | xml | 0m 2s | | The patch has no ill-formed XML file. |
| +1 :green_heart: | javadoc | 1m 34s | | the patch passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 |
| +1 :green_heart: | javadoc | 2m 5s | | the patch passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| +1 :green_heart: | spotbugs | 3m 19s | | the patch passed |
| +1 :green_heart: | shadedclient | 27m 10s | | patch has no errors when building and testing our client artifacts. |
|||| _ Other Tests _ |
| +1 :green_heart: | unit | 19m 58s | | hadoop-common in the patch passed. |
| +1 :green_heart: | asflicense | 1m 6s | | The patch does not generate ASF License warnings. |
| | | 228m 57s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3721/1/artifact/out/Dockerfile |
| GITHUB PR | https://github.com/apache/hadoop/pull/3721 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell markdownlint xml |
| uname | Linux 4566d2fb600e 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 / bf84f22ad7b5887606ef3177beeb4fc16f58cbb0 |
| 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-3721/1/testReport/ |
| Max. process+thread count | 1266 (vs. ulimit of 5500) |
| modules | C: hadoop-common-project/hadoop-common U: hadoop-common-project/hadoop-common |
| Console output | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3721/1/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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[GitHub] [hadoop] smarthanwang commented on pull request #3721: HADOOP-18023. Allow cp command to run with multi threads.
Posted by GitBox <gi...@apache.org>.
smarthanwang commented on pull request #3721:
URL: https://github.com/apache/hadoop/pull/3721#issuecomment-982552836
@sodonnel thanks for your review~
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[GitHub] [hadoop] sodonnel merged pull request #3721: HADOOP-18023. Allow cp command to run with multi threads.
Posted by GitBox <gi...@apache.org>.
sodonnel merged pull request #3721:
URL: https://github.com/apache/hadoop/pull/3721
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