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From "TezQA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TEZ-394) Better scheduling for uneven DAGs
Date Fri, 04 Jan 2019 21:49:00 GMT

    [ https://issues.apache.org/jira/browse/TEZ-394?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16734604#comment-16734604
] 

TezQA commented on TEZ-394:
---------------------------

| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  8m 23s{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} master Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  2m 21s{color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 14s{color} |
{color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 56s{color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 52s{color} |
{color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 26s{color} |
{color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 15s{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 25s{color}
| {color:orange} tez-api: The patch generated 38 new + 945 unchanged - 10 fixed = 983 total
(was 955) {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 44s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 19s{color} |
{color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  1m 43s{color} | {color:green}
tez-api in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 13s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 17m 27s{color} | {color:black}
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/tez:d4a62de |
| JIRA Issue | TEZ-394 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12953798/TEZ-394.004.patch
|
| Optional Tests |  dupname  asflicense  javac  javadoc  unit  findbugs  checkstyle  compile
 |
| uname | Linux a9aff31b4ad8 4.4.0-138-generic #164-Ubuntu SMP Tue Oct 2 17:16:02 UTC 2018
x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | master / a031817 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_191 |
| findbugs | v3.0.1 |
| checkstyle | https://builds.apache.org/job/PreCommit-TEZ-Build/72/artifact/out/diff-checkstyle-tez-api.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-TEZ-Build/72/testReport/ |
| Max. process+thread count | 250 (vs. ulimit of 10000) |
| modules | C: tez-api U: tez-api |
| Console output | https://builds.apache.org/job/PreCommit-TEZ-Build/72/console |
| Powered by | Apache Yetus 0.8.0   http://yetus.apache.org |


This message was automatically generated.



> Better scheduling for uneven DAGs
> ---------------------------------
>
>                 Key: TEZ-394
>                 URL: https://issues.apache.org/jira/browse/TEZ-394
>             Project: Apache Tez
>          Issue Type: Sub-task
>            Reporter: Rohini Palaniswamy
>            Assignee: Jason Lowe
>            Priority: Major
>         Attachments: TEZ-394.001.patch, TEZ-394.002.patch, TEZ-394.003.patch, TEZ-394.004.patch
>
>
>   Consider a series of joins or group by on dataset A with few datasets that takes 10
hours followed by a final join with a dataset X. The vertex that loads dataset X will be one
of the top vertexes and initialized early even though its output is not consumed till the
end after 10 hours. 
> 1) Could either use delayed start logic for better resource allocation
> 2) Else if they are started upfront, need to handle failure/recovery cases where the
nodes which executed the MapTask might have gone down when the final join happens. 



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