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From "ASF GitHub Bot (Jira)" <j...@apache.org>
Subject [jira] [Work logged] (HADOOP-17306) RawLocalFileSystem's lastModifiedTime() looses milli seconds in JDK < 10.b09
Date Thu, 15 Oct 2020 15:22:00 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-17306?focusedWorklogId=501128&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-501128
]

ASF GitHub Bot logged work on HADOOP-17306:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 15/Oct/20 15:21
            Start Date: 15/Oct/20 15:21
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on pull request #2387:
URL: https://github.com/apache/hadoop/pull/2387#issuecomment-709399060


   :confetti_ball: **+1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
   | +0 :ok: |  reexec  |   1m  5s |  |  Docker mode activated.  |
   |||| _ Prechecks _ |
   | +1 :green_heart: |  dupname  |   0m  0s |  |  No case conflicting files found.  |
   | +1 :green_heart: |  @author  |   0m  0s |  |  The patch does not contain any @author
tags.  |
   | +1 :green_heart: |   |   0m  0s | [test4tests](test4tests) |  The patch appears to include
1 new or modified test files.  |
   |||| _ trunk Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |  34m 26s |  |  trunk passed  |
   | +1 :green_heart: |  compile  |  21m 11s |  |  trunk passed with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1
 |
   | +1 :green_heart: |  compile  |  17m 37s |  |  trunk passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01
 |
   | +1 :green_heart: |  checkstyle  |   0m 45s |  |  trunk passed  |
   | +1 :green_heart: |  mvnsite  |   1m 23s |  |  trunk passed  |
   | +1 :green_heart: |  shadedclient  |  18m 27s |  |  branch has no errors when building
and testing our client artifacts.  |
   | +1 :green_heart: |  javadoc  |   0m 29s |  |  trunk passed with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1
 |
   | +1 :green_heart: |  javadoc  |   1m 25s |  |  trunk passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01
 |
   | +0 :ok: |  spotbugs  |   2m 19s |  |  Used deprecated FindBugs config; considering switching
to SpotBugs.  |
   | +1 :green_heart: |  findbugs  |   2m 16s |  |  trunk passed  |
   |||| _ Patch Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |   0m 52s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  21m 13s |  |  the patch passed with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1
 |
   | +1 :green_heart: |  javac  |  21m 13s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  18m 42s |  |  the patch passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01
 |
   | +1 :green_heart: |  javac  |  18m 42s |  |  the patch passed  |
   | -0 :warning: |  checkstyle  |   0m 47s | [/diff-checkstyle-hadoop-common-project_hadoop-common.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2387/3/artifact/out/diff-checkstyle-hadoop-common-project_hadoop-common.txt)
|  hadoop-common-project/hadoop-common: The patch generated 1 new + 27 unchanged - 0 fixed
= 28 total (was 27)  |
   | +1 :green_heart: |  mvnsite  |   1m 24s |  |  the patch passed  |
   | +1 :green_heart: |  whitespace  |   0m  0s |  |  The patch has no whitespace issues.
 |
   | +1 :green_heart: |  shadedclient  |  15m 49s |  |  patch has no errors when building
and testing our client artifacts.  |
   | +1 :green_heart: |  javadoc  |   0m 27s |  |  the patch passed with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1
 |
   | +1 :green_heart: |  javadoc  |   1m 27s |  |  the patch passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01
 |
   | +1 :green_heart: |  findbugs  |   2m 26s |  |  the patch passed  |
   |||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |   9m 50s |  |  hadoop-common in the patch passed.  |
   | +1 :green_heart: |  asflicense  |   0m 44s |  |  The patch does not generate ASF License
warnings.  |
   |  |   | 174m 29s |  |  |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.40 ServerAPI=1.40 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2387/3/artifact/out/Dockerfile
|
   | GITHUB PR | https://github.com/apache/hadoop/pull/2387 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient
findbugs checkstyle |
   | uname | Linux c9bb7e373194 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 / e45407128d4 |
   | Default Java | Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 |
   | Multi-JDK versions | /usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1
/usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 |
   |  Test Results | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2387/3/testReport/
|
   | Max. process+thread count | 1354 (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-2387/3/console
|
   | versions | git=2.17.1 maven=3.6.0 findbugs=4.1.3 |
   | Powered by | Apache Yetus 0.13.0-SNAPSHOT https://yetus.apache.org |
   
   
   This message was automatically generated.
   
   


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 501128)
    Time Spent: 40m  (was: 0.5h)

> RawLocalFileSystem's lastModifiedTime() looses milli seconds in JDK < 10.b09
> ----------------------------------------------------------------------------
>
>                 Key: HADOOP-17306
>                 URL: https://issues.apache.org/jira/browse/HADOOP-17306
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs
>            Reporter: Vinayakumar B
>            Assignee: Vinayakumar B
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> RawLocalFileSystem's FileStatus uses {{File.lastModified()}} api from JDK.
> This api looses milliseconds due to JDK bug.
> [https://bugs.java.com/bugdatabase/view_bug.do?bug_id=8177809]
> This bug fixed in JDK 10 b09 onwards and still exists in JDK 8 which is still being used
in many productions.
> Apparently, {{Files.getLastModifiedTime()}} from java's nio package returns correct time.
> Use {{Files.getLastModifiedTime()}} instead of {{File.lastModified}} as workaround. 



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