[ 
https://issues.apache.org/jira/browse/HADOOP-13975?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15821453#comment-15821453
 ] 

Hadoop QA commented on HADOOP-13975:
------------------------------------

| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 
23s{color} | {color:blue} Docker mode activated. {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:red}-1{color} | {color:red} test4tests {color} | {color:red}  0m  
0s{color} | {color:red} The patch doesn't appear to include any new or modified 
tests. Please justify why no new tests are needed for this patch. Also please 
list what manual steps were performed to verify this patch. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 13m 
16s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
17s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
14s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
19s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
13s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
26s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
11s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
16s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
14s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
14s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  
0m 12s{color} | {color:orange} hadoop-tools/hadoop-distcp: The patch generated 
1 new + 103 unchanged - 1 fixed = 104 total (was 104) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
16s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
11s{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} findbugs {color} | {color:green}  0m 
29s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
10s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 10m 43s{color} 
| {color:red} hadoop-distcp in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
19s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 29m 31s{color} | 
{color:black} {color} |
\\
\\
|| Reason || Tests ||
| Failed junit tests | hadoop.tools.TestOptionsParser |
\\
\\
|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:a9ad5d6 |
| JIRA Issue | HADOOP-13975 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12847167/HADOOP-distcp-multithreaded-mapper-trunk.4.patch
 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  findbugs  checkstyle  |
| uname | Linux aafc293a1810 3.13.0-106-generic #153-Ubuntu SMP Tue Dec 6 
15:44:32 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh 
|
| git revision | trunk / 1f344e0 |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.0 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/11427/artifact/patchprocess/diff-checkstyle-hadoop-tools_hadoop-distcp.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/11427/artifact/patchprocess/patch-unit-hadoop-tools_hadoop-distcp.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/11427/testReport/ |
| modules | C: hadoop-tools/hadoop-distcp U: hadoop-tools/hadoop-distcp |
| Console output | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/11427/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> Allow DistCp to use MultiThreadedMapper
> ---------------------------------------
>
>                 Key: HADOOP-13975
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13975
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: tools/distcp
>    Affects Versions: 3.0.0-alpha1
>            Reporter: Zheng Shao
>            Assignee: Zheng Shao
>            Priority: Minor
>         Attachments: HADOOP-distcp-multithreaded-mapper-branch26.1.patch, 
> HADOOP-distcp-multithreaded-mapper-branch26.2.patch, 
> HADOOP-distcp-multithreaded-mapper-branch26.3.patch, 
> HADOOP-distcp-multithreaded-mapper-branch26.4.patch, 
> HADOOP-distcp-multithreaded-mapper-trunk.1.patch, 
> HADOOP-distcp-multithreaded-mapper-trunk.2.patch, 
> HADOOP-distcp-multithreaded-mapper-trunk.3.patch, 
> HADOOP-distcp-multithreaded-mapper-trunk.4.patch
>
>
> Although distcp allow users to control the parallelism via number of mappers, 
> sometimes it's desirable to run fewer mappers but more threads per mapper.  
> Since distcp is network bound (either by throughput or more frequently by 
> latency of creating connections, opening files, reading/writing files, and 
> closing files), this can make each mapper much more efficient.
> In that way, a lot of resources can be shared so we can save memory and 
> connections to NameNode.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org
For additional commands, e-mail: common-issues-h...@hadoop.apache.org

Reply via email to