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From "ASF GitHub Bot (Jira)" <j...@apache.org>
Subject [jira] [Work logged] (HADOOP-17125) Using snappy-java in SnappyCodec
Date Wed, 16 Sep 2020 12:56:00 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-17125?focusedWorklogId=485126&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-485126
]

ASF GitHub Bot logged work on HADOOP-17125:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 16/Sep/20 12:55
            Start Date: 16/Sep/20 12:55
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus removed a comment on pull request #2297:
URL: https://github.com/apache/hadoop/pull/2297#issuecomment-692976368


   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime | Comment |
   |:----:|----------:|--------:|:--------|
   | +0 :ok: |  reexec  |   0m 32s |  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: |  test4tests  |   0m  0s |  The patch appears to include 5 new or modified
test files.  |
   ||| _ trunk Compile Tests _ |
   | +0 :ok: |  mvndep  |   3m 22s |  Maven dependency ordering for branch  |
   | +1 :green_heart: |  mvninstall  |  26m  9s |  trunk passed  |
   | +1 :green_heart: |  compile  |  19m 26s |  trunk passed with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1
 |
   | +1 :green_heart: |  compile  |  16m 58s |  trunk passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01
 |
   | +1 :green_heart: |  checkstyle  |   2m 44s |  trunk passed  |
   | +1 :green_heart: |  mvnsite  |   2m 44s |  trunk passed  |
   | +1 :green_heart: |  shadedclient  |  20m 27s |  branch has no errors when building and
testing our client artifacts.  |
   | +1 :green_heart: |  javadoc  |   1m 38s |  trunk passed with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1
 |
   | +1 :green_heart: |  javadoc  |   2m 34s |  trunk passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01
 |
   | +0 :ok: |  spotbugs  |   0m 29s |  Used deprecated FindBugs config; considering switching
to SpotBugs.  |
   | +0 :ok: |  findbugs  |   0m 34s |  branch/hadoop-project no findbugs output file (findbugsXml.xml)
 |
   | +0 :ok: |  findbugs  |   0m 29s |  branch/hadoop-project-dist no findbugs output file
(findbugsXml.xml)  |
   ||| _ Patch Compile Tests _ |
   | +0 :ok: |  mvndep  |   0m 33s |  Maven dependency ordering for patch  |
   | +1 :green_heart: |  mvninstall  |   1m 24s |  the patch passed  |
   | +1 :green_heart: |  compile  |  20m 15s |  the patch passed with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1
 |
   | -1 :x: |  cc  |  20m 15s |  root-jdkUbuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1 with
JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1 generated 36 new + 127 unchanged - 36 fixed
= 163 total (was 163)  |
   | +1 :green_heart: |  golang  |  20m 15s |  the patch passed  |
   | +1 :green_heart: |  javac  |  20m 15s |  the patch passed  |
   | +1 :green_heart: |  compile  |  19m 48s |  the patch passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01
 |
   | -1 :x: |  cc  |  19m 48s |  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 36 new + 127 unchanged
- 36 fixed = 163 total (was 163)  |
   | +1 :green_heart: |  golang  |  19m 48s |  the patch passed  |
   | +1 :green_heart: |  javac  |  19m 48s |  the patch passed  |
   | -0 :warning: |  checkstyle  |   3m  3s |  root: The patch generated 1 new + 151 unchanged
- 5 fixed = 152 total (was 156)  |
   | +1 :green_heart: |  mvnsite  |   2m 29s |  the patch passed  |
   | +1 :green_heart: |  whitespace  |   0m  0s |  The patch has no whitespace issues.  |
   | +1 :green_heart: |  xml  |   0m  4s |  The patch has no ill-formed XML file.  |
   | +1 :green_heart: |  shadedclient  |  16m 27s |  patch has no errors when building and
testing our client artifacts.  |
   | +1 :green_heart: |  javadoc  |   1m 27s |  the patch passed with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1
 |
   | +1 :green_heart: |  javadoc  |   2m 33s |  the patch passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01
 |
   | +0 :ok: |  findbugs  |   0m 27s |  hadoop-project has no data from findbugs  |
   | +0 :ok: |  findbugs  |   0m 24s |  hadoop-project-dist has no data from findbugs  |
   ||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |   0m 24s |  hadoop-project in the patch passed.  |
   | +1 :green_heart: |  unit  |   0m 26s |  hadoop-project-dist in the patch passed.  |
   | +1 :green_heart: |  unit  |  10m 18s |  hadoop-common in the patch passed.  |
   | +1 :green_heart: |  asflicense  |   0m 53s |  The patch does not generate ASF License
warnings.  |
   |  |   | 182m 50s |   |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.40 ServerAPI=1.40 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2297/8/artifact/out/Dockerfile
|
   | GITHUB PR | https://github.com/apache/hadoop/pull/2297 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient
xml cc findbugs checkstyle golang |
   | uname | Linux 0f5a7ed97d95 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 / 5c5b2ed7c7f |
   | 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-2297/8/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-2297/8/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-2297/8/artifact/out/diff-checkstyle-root.txt
|
   |  Test Results | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2297/8/testReport/
|
   | Max. process+thread count | 1589 (vs. ulimit of 5500) |
   | modules | C: hadoop-project hadoop-project-dist hadoop-common-project/hadoop-common U:
. |
   | Console output | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2297/8/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: 485126)
    Time Spent: 10h  (was: 9h 50m)

> Using snappy-java in SnappyCodec
> --------------------------------
>
>                 Key: HADOOP-17125
>                 URL: https://issues.apache.org/jira/browse/HADOOP-17125
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: common
>    Affects Versions: 3.3.0
>            Reporter: DB Tsai
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10h
>  Remaining Estimate: 0h
>
> In Hadoop, we use native libs for snappy codec which has several disadvantages:
>  * It requires native *libhadoop* and *libsnappy* to be installed in system *LD_LIBRARY_PATH*,
and they have to be installed separately on each node of the clusters, container images, or
local test environments which adds huge complexities from deployment point of view. In some
environments, it requires compiling the natives from sources which is non-trivial. Also, this
approach is platform dependent; the binary may not work in different platform, so it requires
recompilation.
>  * It requires extra configuration of *java.library.path* to load the natives, and it
results higher application deployment and maintenance cost for users.
> Projects such as *Spark* and *Parquet* use [snappy-java|[https://github.com/xerial/snappy-java]]
which is JNI-based implementation. It contains native binaries for Linux, Mac, and IBM in
jar file, and it can automatically load the native binaries into JVM from jar without any
setup. If a native implementation can not be found for a platform, it can fallback to pure-java
implementation of snappy based on [aircompressor|[https://github.com/airlift/aircompressor/tree/master/src/main/java/io/airlift/compress/snappy]].



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