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https://issues.apache.org/jira/browse/HADOOP-18028?focusedWorklogId=687777&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-687777
]
ASF GitHub Bot logged work on HADOOP-18028:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 30/Nov/21 06:02
Start Date: 30/Nov/21 06:02
Worklog Time Spent: 10m
Work Description: hadoop-yetus commented on pull request #3736:
URL: https://github.com/apache/hadoop/pull/3736#issuecomment-982313913
:broken_heart: **-1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
| +0 :ok: | reexec | 0m 52s | | Docker mode activated. |
|||| _ Prechecks _ |
| +1 :green_heart: | dupname | 0m 1s | | 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 21 new or modified test files. |
|||| _ trunk Compile Tests _ |
| +1 :green_heart: | mvninstall | 44m 55s | | trunk passed |
| +1 :green_heart: | compile | 0m 56s | | trunk passed with JDK
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 |
| +1 :green_heart: | compile | 0m 43s | | trunk passed with JDK
Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| +1 :green_heart: | checkstyle | 0m 34s | | trunk passed |
| +1 :green_heart: | mvnsite | 0m 52s | | trunk passed |
| +1 :green_heart: | javadoc | 0m 29s | | trunk passed with JDK
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 |
| +1 :green_heart: | javadoc | 0m 42s | | trunk passed with JDK
Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| +1 :green_heart: | spotbugs | 1m 33s | | trunk passed |
| +1 :green_heart: | shadedclient | 26m 39s | | branch has no errors
when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 0m 46s | | the patch passed |
| +1 :green_heart: | compile | 0m 40s | | the patch passed with JDK
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 |
| -1 :x: | javac | 0m 40s |
[/results-compile-javac-hadoop-tools_hadoop-aws-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3736/3/artifact/out/results-compile-javac-hadoop-tools_hadoop-aws-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt)
| hadoop-tools_hadoop-aws-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 with JDK
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 generated 1 new + 64 unchanged - 1 fixed
= 65 total (was 65) |
| +1 :green_heart: | compile | 0m 33s | | the patch passed with JDK
Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| -1 :x: | javac | 0m 33s |
[/results-compile-javac-hadoop-tools_hadoop-aws-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3736/3/artifact/out/results-compile-javac-hadoop-tools_hadoop-aws-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt)
|
hadoop-tools_hadoop-aws-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 +
64 unchanged - 1 fixed = 65 total (was 65) |
| +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks
issues. |
| -0 :warning: | checkstyle | 0m 23s |
[/results-checkstyle-hadoop-tools_hadoop-aws.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3736/3/artifact/out/results-checkstyle-hadoop-tools_hadoop-aws.txt)
| hadoop-tools/hadoop-aws: The patch generated 106 new + 5 unchanged - 0
fixed = 111 total (was 5) |
| +1 :green_heart: | mvnsite | 0m 41s | | the patch passed |
| +1 :green_heart: | xml | 0m 1s | | The patch has no ill-formed XML
file. |
| +1 :green_heart: | javadoc | 0m 18s | | the patch passed with JDK
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 |
| -1 :x: | javadoc | 0m 26s |
[/patch-javadoc-hadoop-tools_hadoop-aws-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3736/3/artifact/out/patch-javadoc-hadoop-tools_hadoop-aws-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt)
| hadoop-aws in the patch failed with JDK Private
Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10. |
| -1 :x: | spotbugs | 1m 16s |
[/new-spotbugs-hadoop-tools_hadoop-aws.html](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3736/3/artifact/out/new-spotbugs-hadoop-tools_hadoop-aws.html)
| hadoop-tools/hadoop-aws generated 2 new + 0 unchanged - 0 fixed = 2 total
(was 0) |
| +1 :green_heart: | shadedclient | 19m 51s | | patch has no errors
when building and testing our client artifacts. |
|||| _ Other Tests _ |
| -1 :x: | unit | 2m 41s |
[/patch-unit-hadoop-tools_hadoop-aws.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3736/3/artifact/out/patch-unit-hadoop-tools_hadoop-aws.txt)
| hadoop-aws in the patch passed. |
| -1 :x: | asflicense | 0m 35s |
[/results-asflicense.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3736/3/artifact/out/results-asflicense.txt)
| The patch generated 1 ASF License warnings. |
| | | 107m 16s | | |
| Reason | Tests |
|-------:|:------|
| SpotBugs | module:hadoop-tools/hadoop-aws |
| | Inconsistent synchronization of
org.apache.hadoop.fs.common.BufferData.buffer; locked 71% of time
Unsynchronized access at BufferData.java:71% of time Unsynchronized access at
BufferData.java:[line 241] |
| | Inconsistent synchronization of
org.apache.hadoop.fs.s3a.S3AFileSystem.futurePool; locked 50% of time
Unsynchronized access at S3AFileSystem.java:50% of time Unsynchronized access
at S3AFileSystem.java:[line 762] |
| Failed junit tests |
hadoop.fs.s3a.s3guard.TestObjectChangeDetectionAttributes |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.41 ServerAPI=1.41 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3736/3/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/3736 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient codespell xml spotbugs checkstyle markdownlint |
| uname | Linux cbb582e5910f 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 / c49686309bfff42ed128166d9ab8279c23c8f0d0 |
| 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-3736/3/testReport/ |
| Max. process+thread count | 714 (vs. ulimit of 5500) |
| modules | C: hadoop-tools/hadoop-aws U: hadoop-tools/hadoop-aws |
| Console output |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3736/3/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: 687777)
Time Spent: 40m (was: 0.5h)
> improve S3 read speed using prefetching & caching
> -------------------------------------------------
>
> Key: HADOOP-18028
> URL: https://issues.apache.org/jira/browse/HADOOP-18028
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs/s3
> Reporter: Bhalchandra Pandit
> Priority: Major
> Labels: pull-request-available
> Time Spent: 40m
> Remaining Estimate: 0h
>
> I work for Pinterest. I developed a technique for vastly improving read
> throughput when reading from the S3 file system. It not only helps the
> sequential read case (like reading a SequenceFile) but also significantly
> improves read throughput of a random access case (like reading Parquet). This
> technique has been very useful in significantly improving efficiency of the
> data processing jobs at Pinterest.
>
> I would like to contribute that feature to Apache Hadoop. More details on
> this technique are available in this blog I wrote recently:
> [https://medium.com/pinterest-engineering/improving-efficiency-and-reducing-runtime-using-s3-read-optimization-b31da4b60fa0]
>
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