[ 
https://issues.apache.org/jira/browse/HDDS-1094?focusedWorklogId=301779&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-301779
 ]

ASF GitHub Bot logged work on HDDS-1094:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 27/Aug/19 08:29
            Start Date: 27/Aug/19 08:29
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on issue #1323: HDDS-1094. 
Performance test infrastructure : skip writing user data on Datanode. 
Contributed by Supratim Deka
URL: https://github.com/apache/hadoop/pull/1323#issuecomment-525198173
 
 
   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime | Comment |
   |:----:|----------:|--------:|:--------|
   | 0 | reexec | 35 | Docker mode activated. |
   ||| _ Prechecks _ |
   | +1 | dupname | 0 | No case conflicting files found. |
   | +1 | @author | 0 | The patch does not contain any @author tags. |
   | +1 | test4tests | 0 | The patch appears to include 1 new or modified test 
files. |
   ||| _ trunk Compile Tests _ |
   | 0 | mvndep | 69 | Maven dependency ordering for branch |
   | +1 | mvninstall | 658 | trunk passed |
   | +1 | compile | 382 | trunk passed |
   | +1 | checkstyle | 78 | trunk passed |
   | +1 | mvnsite | 0 | trunk passed |
   | +1 | shadedclient | 959 | branch has no errors when building and testing 
our client artifacts. |
   | +1 | javadoc | 180 | trunk passed |
   | 0 | spotbugs | 443 | Used deprecated FindBugs config; considering 
switching to SpotBugs. |
   | +1 | findbugs | 660 | trunk passed |
   | -0 | patch | 479 | Used diff version of patch file. Binary files and 
potentially other changes not applied. Please rebase and squash commits if 
necessary. |
   ||| _ Patch Compile Tests _ |
   | 0 | mvndep | 29 | Maven dependency ordering for patch |
   | +1 | mvninstall | 631 | the patch passed |
   | +1 | compile | 396 | the patch passed |
   | +1 | javac | 396 | the patch passed |
   | -0 | checkstyle | 40 | hadoop-hdds: The patch generated 2 new + 0 
unchanged - 0 fixed = 2 total (was 0) |
   | +1 | mvnsite | 0 | the patch passed |
   | +1 | whitespace | 0 | The patch has no whitespace issues. |
   | +1 | shadedclient | 754 | patch has no errors when building and testing 
our client artifacts. |
   | -1 | javadoc | 80 | hadoop-hdds generated 2 new + 16 unchanged - 0 fixed = 
18 total (was 16) |
   | -1 | findbugs | 382 | hadoop-ozone in the patch failed. |
   ||| _ Other Tests _ |
   | +1 | unit | 343 | hadoop-hdds in the patch passed. |
   | -1 | unit | 415 | hadoop-ozone in the patch failed. |
   | +1 | asflicense | 40 | The patch does not generate ASF License warnings. |
   | | | 6631 | |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | Client=19.03.1 Server=19.03.1 base: 
https://builds.apache.org/job/hadoop-multibranch/job/PR-1323/2/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/1323 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
mvnsite unit shadedclient findbugs checkstyle |
   | uname | Linux 1bda1577d9f1 4.15.0-54-generic #58-Ubuntu SMP Mon Jun 24 
10:55:24 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | personality/hadoop.sh |
   | git revision | trunk / 3329257 |
   | Default Java | 1.8.0_222 |
   | checkstyle | 
https://builds.apache.org/job/hadoop-multibranch/job/PR-1323/2/artifact/out/diff-checkstyle-hadoop-hdds.txt
 |
   | javadoc | 
https://builds.apache.org/job/hadoop-multibranch/job/PR-1323/2/artifact/out/diff-javadoc-javadoc-hadoop-hdds.txt
 |
   | findbugs | 
https://builds.apache.org/job/hadoop-multibranch/job/PR-1323/2/artifact/out/patch-findbugs-hadoop-ozone.txt
 |
   | unit | 
https://builds.apache.org/job/hadoop-multibranch/job/PR-1323/2/artifact/out/patch-unit-hadoop-ozone.txt
 |
   |  Test Results | 
https://builds.apache.org/job/hadoop-multibranch/job/PR-1323/2/testReport/ |
   | Max. process+thread count | 864 (vs. ulimit of 5500) |
   | modules | C: hadoop-hdds/common hadoop-hdds/container-service 
hadoop-ozone/tools U: . |
   | Console output | 
https://builds.apache.org/job/hadoop-multibranch/job/PR-1323/2/console |
   | versions | git=2.7.4 maven=3.3.9 findbugs=3.1.0-RC1 |
   | Powered by | Apache Yetus 0.10.0 http://yetus.apache.org |
   
   
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 301779)
    Time Spent: 1h 40m  (was: 1.5h)

> Performance test infrastructure : skip writing user data on Datanode
> --------------------------------------------------------------------
>
>                 Key: HDDS-1094
>                 URL: https://issues.apache.org/jira/browse/HDDS-1094
>             Project: Hadoop Distributed Data Store
>          Issue Type: Improvement
>          Components: Ozone Datanode
>            Reporter: Supratim Deka
>            Assignee: Supratim Deka
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 1h 40m
>  Remaining Estimate: 0h
>
> Goal:
> It can be useful to exercise the IO and control paths in Ozone for simulated 
> large datasets without having huge disk capacity at hand. For example, this 
> will allow us to get things like container reports and incremental container 
> reports, while not needing huge cluster capacity. The 
> [SimulatedFsDataset|https://github.com/apache/hadoop/blob/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/SimulatedFSDataset.java]
>  does something similar in HDFS. It has been an invaluable tool to simulate 
> large data stores.



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