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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4280) CapacityScheduler reservations may not prevent indefinite postponement on a busy cluster
Date Sat, 23 Jul 2016 00:51:21 GMT

    [ https://issues.apache.org/jira/browse/YARN-4280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15390429#comment-15390429
] 

Hadoop QA commented on YARN-4280:
---------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 18m 30s {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:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m 0s {color}
| {color:green} The patch appears to include 2 new or modified test files. {color} |
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red} 0m 9s {color} | {color:red}
root in trunk failed. {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 38s {color} |
{color:green} trunk passed with JDK v1.8.0_101 {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red} 0m 9s {color} | {color:red}
hadoop-yarn-server-resourcemanager in trunk failed with JDK v1.7.0_101. {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 25s {color}
| {color:green} trunk passed {color} |
| {color:red}-1{color} | {color:red} mvnsite {color} | {color:red} 0m 12s {color} | {color:red}
hadoop-yarn-server-resourcemanager in trunk failed. {color} |
| {color:red}-1{color} | {color:red} mvneclipse {color} | {color:red} 0m 10s {color} | {color:red}
hadoop-yarn-server-resourcemanager in trunk failed. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 0m 10s {color} | {color:red}
hadoop-yarn-server-resourcemanager in trunk failed. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 22s {color} |
{color:green} trunk passed with JDK v1.8.0_101 {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red} 0m 10s {color} | {color:red}
hadoop-yarn-server-resourcemanager in trunk failed with JDK v1.7.0_101. {color} |
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red} 0m 10s {color} | {color:red}
hadoop-yarn-server-resourcemanager in the patch failed. {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 37s {color} |
{color:green} the patch passed with JDK v1.8.0_101 {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red} 0m 37s {color} | {color:red}
hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-jdk1.8.0_101
with JDK v1.8.0_101 generated 1 new + 3 unchanged - 0 fixed = 4 total (was 3) {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red} 0m 10s {color} | {color:red}
hadoop-yarn-server-resourcemanager in the patch failed with JDK v1.7.0_101. {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red} 0m 10s {color} | {color:red}
hadoop-yarn-server-resourcemanager in the patch failed with JDK v1.7.0_101. {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 24s {color} | {color:red}
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager: The
patch generated 1 new + 306 unchanged - 2 fixed = 307 total (was 308) {color} |
| {color:red}-1{color} | {color:red} mvnsite {color} | {color:red} 0m 12s {color} | {color:red}
hadoop-yarn-server-resourcemanager in the patch failed. {color} |
| {color:red}-1{color} | {color:red} mvneclipse {color} | {color:red} 0m 11s {color} | {color:red}
hadoop-yarn-server-resourcemanager in the patch failed. {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m 0s {color}
| {color:green} The patch has no whitespace issues. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 0m 9s {color} | {color:red}
hadoop-yarn-server-resourcemanager in the patch failed. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 3m 38s {color} |
{color:green} the patch passed with JDK v1.8.0_101 {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red} 4m 36s {color} | {color:red}
hadoop-yarn-server-resourcemanager in the patch failed with JDK v1.7.0_101. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 41m 13s {color} | {color:green}
hadoop-yarn-server-resourcemanager in the patch passed with JDK v1.8.0_101. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 0m 10s {color} | {color:red}
hadoop-yarn-server-resourcemanager in the patch failed with JDK v1.7.0_101. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 24s {color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 74m 9s {color} | {color:black}
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:5af2af1 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12819746/YARN-4280.008_.patch
|
| JIRA Issue | YARN-4280 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  findbugs
 checkstyle  |
| uname | Linux 9892c8647b59 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep 3 21:56:12
UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / c6e3a00 |
| Default Java | 1.7.0_101 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_101 /usr/lib/jvm/java-7-openjdk-amd64:1.7.0_101
|
| mvninstall | https://builds.apache.org/job/PreCommit-YARN-Build/12470/artifact/patchprocess/branch-mvninstall-root.txt
|
| compile | https://builds.apache.org/job/PreCommit-YARN-Build/12470/artifact/patchprocess/branch-compile-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-jdk1.7.0_101.txt
|
| mvnsite | https://builds.apache.org/job/PreCommit-YARN-Build/12470/artifact/patchprocess/branch-mvnsite-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt
|
| mvneclipse | https://builds.apache.org/job/PreCommit-YARN-Build/12470/artifact/patchprocess/branch-mvneclipse-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt
|
| findbugs | https://builds.apache.org/job/PreCommit-YARN-Build/12470/artifact/patchprocess/branch-findbugs-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt
|
| javadoc | https://builds.apache.org/job/PreCommit-YARN-Build/12470/artifact/patchprocess/branch-javadoc-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-jdk1.7.0_101.txt
|
| mvninstall | https://builds.apache.org/job/PreCommit-YARN-Build/12470/artifact/patchprocess/patch-mvninstall-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt
|
| javac | https://builds.apache.org/job/PreCommit-YARN-Build/12470/artifact/patchprocess/diff-compile-javac-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-jdk1.8.0_101.txt
|
| compile | https://builds.apache.org/job/PreCommit-YARN-Build/12470/artifact/patchprocess/patch-compile-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-jdk1.7.0_101.txt
|
| javac | https://builds.apache.org/job/PreCommit-YARN-Build/12470/artifact/patchprocess/patch-compile-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-jdk1.7.0_101.txt
|
| checkstyle | https://builds.apache.org/job/PreCommit-YARN-Build/12470/artifact/patchprocess/diff-checkstyle-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt
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| mvnsite | https://builds.apache.org/job/PreCommit-YARN-Build/12470/artifact/patchprocess/patch-mvnsite-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt
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| mvneclipse | https://builds.apache.org/job/PreCommit-YARN-Build/12470/artifact/patchprocess/patch-mvneclipse-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt
|
| findbugs | https://builds.apache.org/job/PreCommit-YARN-Build/12470/artifact/patchprocess/patch-findbugs-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt
|
| javadoc | https://builds.apache.org/job/PreCommit-YARN-Build/12470/artifact/patchprocess/patch-javadoc-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-jdk1.7.0_101.txt
|
| unit | https://builds.apache.org/job/PreCommit-YARN-Build/12470/artifact/patchprocess/patch-unit-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-jdk1.7.0_101.txt
|
| JDK v1.7.0_101  Test Results | https://builds.apache.org/job/PreCommit-YARN-Build/12470/testReport/
|
| modules | C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
U: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager |
| Console output | https://builds.apache.org/job/PreCommit-YARN-Build/12470/console |
| Powered by | Apache Yetus 0.3.0   http://yetus.apache.org |


This message was automatically generated.



> CapacityScheduler reservations may not prevent indefinite postponement on a busy cluster
> ----------------------------------------------------------------------------------------
>
>                 Key: YARN-4280
>                 URL: https://issues.apache.org/jira/browse/YARN-4280
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacity scheduler
>    Affects Versions: 2.6.1, 2.8.0, 2.7.1
>            Reporter: Kuhu Shukla
>            Assignee: Kuhu Shukla
>         Attachments: YARN-4280-branch-2.8.001.patch, YARN-4280.001.patch, YARN-4280.002.patch,
YARN-4280.003.patch, YARN-4280.004.patch, YARN-4280.005.patch, YARN-4280.006.patch, YARN-4280.007.patch,
YARN-4280.008.patch, YARN-4280.008_.patch
>
>
> Consider the following scenario:
> There are 2 queues A(25% of the total capacity) and B(75%), both can run at total cluster
capacity. There are 2 applications, appX that runs on Queue A, always asking for 1G containers(non-AM)
and appY runs on Queue B asking for 2 GB containers.
> The user limit is high enough for the application to reach 100% of the cluster resource.

> appX is running at total cluster capacity, full with 1G containers releasing only one
container at a time. appY comes in with a request of 2GB container but only 1 GB is free.
Ideally, since appY is in the underserved queue, it has higher priority and should reserve
for its 2 GB request. Since this request puts the alloc+reserve above total capacity of the
cluster, reservation is not made. appX comes in with a 1GB request and since 1GB is still
available, the request is allocated. 
> This can continue indefinitely causing priority inversion.



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