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From "genericqa (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-15558) Implementation of Clay Codes plugin (Coupled Layer MSR codes)
Date Tue, 03 Jul 2018 12:44:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-15558?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16531309#comment-16531309
] 

genericqa commented on HADOOP-15558:
------------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 20s{color} | {color:blue}
Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green}  0m  0s{color} |
{color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green}  0m  0s{color}
| {color:green} The patch appears to include 6 new or modified test files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 26m 12s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 28m 39s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 21s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 12s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 12m 26s{color}
| {color:green} branch has no errors when building and testing our client artifacts. {color}
|
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 33s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m  0s{color} |
{color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 47s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 27m 45s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 27m 45s{color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 22s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m  9s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m  0s{color}
| {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 10m 41s{color}
| {color:green} patch has no errors when building and testing our client artifacts. {color}
|
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  1m 44s{color} | {color:red}
hadoop-common-project/hadoop-common generated 1 new + 0 unchanged - 0 fixed = 1 total (was
0) {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 59s{color} |
{color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}  8m  4s{color} | {color:red}
hadoop-common in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 40s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}124m 11s{color} | {color:black}
{color} |
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|| Reason || Tests ||
| FindBugs | module:hadoop-common-project/hadoop-common |
|  |  Useless object stored in variable inputPositions of method org.apache.hadoop.io.erasurecode.coder.ClayCodeErasureDecodingStep.doDecodeSingle(ByteBuffer[][],
ByteBuffer[][], int, int, boolean)  At ClayCodeErasureDecodingStep.java:inputPositions of
method org.apache.hadoop.io.erasurecode.coder.ClayCodeErasureDecodingStep.doDecodeSingle(ByteBuffer[][],
ByteBuffer[][], int, int, boolean)  At ClayCodeErasureDecodingStep.java:[line 147] |
| Failed junit tests | hadoop.io.erasurecode.codec.TestClayCodeErasureCodec |
|   | hadoop.io.erasurecode.TestECSchema |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:abb62dd |
| JIRA Issue | HADOOP-15558 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12930099/HADOOP-15558.001.patch
|
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  shadedclient
 findbugs  checkstyle  |
| uname | Linux 0a4091e2a087 3.13.0-143-generic #192-Ubuntu SMP Tue Feb 27 10:45:36 UTC 2018
x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 344f324 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_171 |
| findbugs | v3.1.0-RC1 |
| findbugs | https://builds.apache.org/job/PreCommit-HADOOP-Build/14851/artifact/out/new-findbugs-hadoop-common-project_hadoop-common.html
|
| unit | https://builds.apache.org/job/PreCommit-HADOOP-Build/14851/artifact/out/patch-unit-hadoop-common-project_hadoop-common.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-HADOOP-Build/14851/testReport/ |
| Max. process+thread count | 1353 (vs. ulimit of 10000) |
| modules | C: hadoop-common-project/hadoop-common U: hadoop-common-project/hadoop-common
|
| Console output | https://builds.apache.org/job/PreCommit-HADOOP-Build/14851/console |
| Powered by | Apache Yetus 0.8.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> Implementation of Clay Codes plugin (Coupled Layer MSR codes) 
> --------------------------------------------------------------
>
>                 Key: HADOOP-15558
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15558
>             Project: Hadoop Common
>          Issue Type: New Feature
>            Reporter: Chaitanya Mukka
>            Assignee: Chaitanya Mukka
>            Priority: Major
>         Attachments: ClayCodeCodecDesign-20180630.pdf, HADOOP-15558.001.patch
>
>
> [Clay Codes|https://www.usenix.org/conference/fast18/presentation/vajha] are new erasure
codes developed as a research project at Codes and Signal Design Lab, IISc Bangalore. A particular
Clay code, with storage overhead 1.25x, has been shown to reduce repair network traffic, disk
read and repair times by factors of 2.9, 3.4 and 3 respectively compared to the RS codes with
the same parameters. 
> This Jira aims to introduce Clay Codes to HDFS-EC as one of the pluggable erasure codec.



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