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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6870) Add configuration for MR job to finish when all reducers are complete (even with unfinished mappers)
Date Thu, 10 Aug 2017 13:10:00 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16121585#comment-16121585
] 

Hadoop QA commented on MAPREDUCE-6870:
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| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 19s{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 1 new or modified test files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m  7s{color} | {color:blue}
Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 13m 54s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 42s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 38s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 56s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 26s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 37s{color} |
{color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m  7s{color} | {color:blue}
Maven dependency ordering for patch {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}  1m 38s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  1m 38s{color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 36s{color}
| {color:green} hadoop-mapreduce-project/hadoop-mapreduce-client: The patch generated 0 new
+ 654 unchanged - 5 fixed = 654 total (was 659) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 49s{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} xml {color} | {color:green}  0m  1s{color} | {color:green}
The patch has no ill-formed XML file. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 35s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 32s{color} |
{color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  2m 39s{color} | {color:green}
hadoop-mapreduce-client-core in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  8m 52s{color} | {color:green}
hadoop-mapreduce-client-app in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 14s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 38m 24s{color} | {color:black}
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:14b5c93 |
| JIRA Issue | MAPREDUCE-6870 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12881202/MAPREDUCE-6870-007.patch
|
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  findbugs
 checkstyle  xml  |
| uname | Linux 73c1dc9f7ec6 3.13.0-117-generic #164-Ubuntu SMP Fri Apr 7 11:05:26 UTC 2017
x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 8d953c2 |
| Default Java | 1.8.0_131 |
| findbugs | v3.1.0-RC1 |
|  Test Results | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7054/testReport/
|
| modules | C: hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app U: hadoop-mapreduce-project/hadoop-mapreduce-client
|
| Console output | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7054/console |
| Powered by | Apache Yetus 0.5.0   http://yetus.apache.org |


This message was automatically generated.



> Add configuration for MR job to finish when all reducers are complete (even with unfinished
mappers)
> ----------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-6870
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6870
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>    Affects Versions: 2.6.1
>            Reporter: Zhe Zhang
>            Assignee: Peter Bacsko
>         Attachments: MAPREDUCE-6870-001.patch, MAPREDUCE-6870-002.patch, MAPREDUCE-6870-003.patch,
MAPREDUCE-6870-004.patch, MAPREDUCE-6870-005.patch, MAPREDUCE-6870-006.patch, MAPREDUCE-6870-007.patch
>
>
> Even with MAPREDUCE-5817, there could still be cases where mappers get scheduled before
all reducers are complete, but those mappers run for long time, even after all reducers are
complete. This could hurt the performance of large MR jobs.
> In some cases, mappers don't have any materialize-able outcome other than providing intermediate
data to reducers. In that case, the job owner should have the config option to finish the
job once all reducers are complete.



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