[ 
https://issues.apache.org/jira/browse/HDFS-15025?focusedWorklogId=475152&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-475152
 ]

ASF GitHub Bot logged work on HDFS-15025:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 27/Aug/20 06:19
            Start Date: 27/Aug/20 06:19
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on pull request #2189:
URL: https://github.com/apache/hadoop/pull/2189#issuecomment-681615978


   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime | Comment |
   |:----:|----------:|--------:|:--------|
   | +0 :ok: |  reexec  |   0m 30s |  Docker mode activated.  |
   ||| _ Prechecks _ |
   | +1 :green_heart: |  dupname  |   0m  1s |  No case conflicting files 
found.  |
   | +0 :ok: |  buf  |   0m  0s |  buf was not available.  |
   | +0 :ok: |  markdownlint  |   0m  0s |  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 
16 new or modified test files.  |
   ||| _ trunk Compile Tests _ |
   | +0 :ok: |  mvndep  |   3m 21s |  Maven dependency ordering for branch  |
   | +1 :green_heart: |  mvninstall  |  25m 44s |  trunk passed  |
   | +1 :green_heart: |  compile  |  19m  9s |  trunk passed with JDK 
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | +1 :green_heart: |  compile  |  16m 45s |  trunk passed with JDK Private 
Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | +1 :green_heart: |  checkstyle  |   3m  0s |  trunk passed  |
   | +1 :green_heart: |  mvnsite  |   4m  3s |  trunk passed  |
   | +1 :green_heart: |  shadedclient  |  21m 36s |  branch has no errors when 
building and testing our client artifacts.  |
   | +1 :green_heart: |  javadoc  |   2m 32s |  trunk passed with JDK 
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | +1 :green_heart: |  javadoc  |   4m  4s |  trunk passed with JDK Private 
Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | +0 :ok: |  spotbugs  |   2m 35s |  Used deprecated FindBugs config; 
considering switching to SpotBugs.  |
   | +1 :green_heart: |  findbugs  |   7m 58s |  trunk passed  |
   ||| _ Patch Compile Tests _ |
   | +0 :ok: |  mvndep  |   0m 26s |  Maven dependency ordering for patch  |
   | +1 :green_heart: |  mvninstall  |   2m 44s |  the patch passed  |
   | +1 :green_heart: |  compile  |  18m 39s |  the patch passed with JDK 
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | -1 :x: |  cc  |  18m 38s |  
root-jdkUbuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1 with JDK 
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1 generated 12 new + 151 unchanged - 
12 fixed = 163 total (was 163)  |
   | +1 :green_heart: |  javac  |  18m 38s |  the patch passed  |
   | +1 :green_heart: |  compile  |  17m 50s |  the patch passed with JDK 
Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | -1 :x: |  cc  |  17m 50s |  
root-jdkPrivateBuild-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 with JDK Private 
Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 generated 10 new + 153 unchanged - 
10 fixed = 163 total (was 163)  |
   | +1 :green_heart: |  javac  |  17m 50s |  the patch passed  |
   | -0 :warning: |  checkstyle  |   2m 57s |  root: The patch generated 3 new 
+ 725 unchanged - 4 fixed = 728 total (was 729)  |
   | +1 :green_heart: |  mvnsite  |   4m  4s |  the patch passed  |
   | +1 :green_heart: |  whitespace  |   0m  0s |  The patch has no whitespace 
issues.  |
   | +1 :green_heart: |  xml  |   0m  1s |  The patch has no ill-formed XML 
file.  |
   | +1 :green_heart: |  shadedclient  |  14m 14s |  patch has no errors when 
building and testing our client artifacts.  |
   | +1 :green_heart: |  javadoc  |   2m 15s |  the patch passed with JDK 
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | +1 :green_heart: |  javadoc  |   3m 54s |  the patch passed with JDK 
Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | +1 :green_heart: |  findbugs  |   8m 39s |  the patch passed  |
   ||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |   9m 56s |  hadoop-common in the patch passed. 
 |
   | +1 :green_heart: |  unit  |   2m 18s |  hadoop-hdfs-client in the patch 
passed.  |
   | -1 :x: |  unit  | 101m 28s |  hadoop-hdfs in the patch passed.  |
   | +1 :green_heart: |  asflicense  |   0m 57s |  The patch does not generate 
ASF License warnings.  |
   |  |   | 297m  7s |   |
   
   
   | Reason | Tests |
   |-------:|:------|
   | Failed junit tests | hadoop.hdfs.TestFileChecksumCompositeCrc |
   |   | hadoop.fs.contract.hdfs.TestHDFSContractMultipartUploader |
   |   | hadoop.hdfs.server.sps.TestExternalStoragePolicySatisfier |
   |   | hadoop.hdfs.TestFileChecksum |
   |   | hadoop.hdfs.server.balancer.TestBalancer |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.40 ServerAPI=1.40 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2189/8/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/2189 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
mvnsite unit shadedclient findbugs checkstyle cc buflint bufcompat xml 
markdownlint |
   | uname | Linux 07820bd5ed78 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 
11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | dev-support/bin/hadoop.sh |
   | git revision | trunk / 5e52955112a |
   | 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 |
   | cc | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2189/8/artifact/out/diff-compile-cc-root-jdkUbuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1.txt
 |
   | cc | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2189/8/artifact/out/diff-compile-cc-root-jdkPrivateBuild-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01.txt
 |
   | checkstyle | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2189/8/artifact/out/diff-checkstyle-root.txt
 |
   | unit | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2189/8/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
 |
   |  Test Results | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2189/8/testReport/ |
   | Max. process+thread count | 4321 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common 
hadoop-hdfs-project/hadoop-hdfs-client hadoop-hdfs-project/hadoop-hdfs U: . |
   | Console output | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2189/8/console |
   | versions | git=2.17.1 maven=3.6.0 findbugs=4.0.6 |
   | 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: 475152)
    Time Spent: 20m  (was: 10m)

> Applying NVDIMM storage media to HDFS
> -------------------------------------
>
>                 Key: HDFS-15025
>                 URL: https://issues.apache.org/jira/browse/HDFS-15025
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: datanode, hdfs
>            Reporter: YaYun Wang
>            Assignee: YaYun Wang
>            Priority: Major
>         Attachments: Applying NVDIMM to HDFS.pdf, HDFS-15025.001.patch, 
> HDFS-15025.002.patch, HDFS-15025.003.patch, HDFS-15025.004.patch, 
> HDFS-15025.005.patch, HDFS-15025.006.patch, NVDIMM_patch(WIP).patch
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> The non-volatile memory NVDIMM is faster than SSD, it can be used 
> simultaneously with RAM, DISK, SSD. The data of HDFS stored directly on 
> NVDIMM can not only improves the response rate of HDFS, but also ensure the 
> reliability of the data.



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