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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3656) LowCost: A Cost-Based Placement Agent for YARN Reservations
Date Sat, 25 Jul 2015 00:32:05 GMT

    [ https://issues.apache.org/jira/browse/YARN-3656?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14641289#comment-14641289
] 

Hadoop QA commented on YARN-3656:
---------------------------------

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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  16m 32s | Pre-patch trunk compilation is healthy. |
| {color:green}+1{color} | @author |   0m  0s | The patch does not contain any @author tags.
|
| {color:green}+1{color} | tests included |   0m  0s | The patch appears to include 13 new
or modified test files. |
| {color:green}+1{color} | javac |   7m 50s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |   9m 59s | There were no new javadoc warning messages.
|
| {color:green}+1{color} | release audit |   0m 23s | The applied patch does not increase
the total number of release audit warnings. |
| {color:red}-1{color} | checkstyle |   0m 47s | The applied patch generated  15 new checkstyle
issues (total was 115, now 121). |
| {color:green}+1{color} | whitespace |   0m  9s | The patch has no lines that end in whitespace.
|
| {color:green}+1{color} | install |   1m 19s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 32s | The patch built with eclipse:eclipse.
|
| {color:green}+1{color} | findbugs |   1m 25s | The patch does not introduce any new Findbugs
(version 3.0.0) warnings. |
| {color:red}-1{color} | yarn tests |  52m 11s | Tests failed in hadoop-yarn-server-resourcemanager.
|
| | |  91m 12s | |
\\
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|| Reason || Tests ||
| Failed unit tests | hadoop.yarn.server.resourcemanager.scheduler.fair.TestAllocationFileLoaderService
|
|   | hadoop.yarn.server.resourcemanager.reservation.TestCapacityReservationSystem |
|   | hadoop.yarn.server.resourcemanager.reservation.TestFairReservationSystem |
\\
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12747121/YARN-3656-v1.3.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / ff9c13e |
| checkstyle |  https://builds.apache.org/job/PreCommit-YARN-Build/8660/artifact/patchprocess/diffcheckstylehadoop-yarn-server-resourcemanager.txt
|
| hadoop-yarn-server-resourcemanager test log | https://builds.apache.org/job/PreCommit-YARN-Build/8660/artifact/patchprocess/testrun_hadoop-yarn-server-resourcemanager.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-YARN-Build/8660/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf904.gq1.ygridcore.net 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 |
| Console output | https://builds.apache.org/job/PreCommit-YARN-Build/8660/console |


This message was automatically generated.

> LowCost: A Cost-Based Placement Agent for YARN Reservations
> -----------------------------------------------------------
>
>                 Key: YARN-3656
>                 URL: https://issues.apache.org/jira/browse/YARN-3656
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: capacityscheduler, resourcemanager
>    Affects Versions: 2.6.0
>            Reporter: Ishai Menache
>            Assignee: Jonathan Yaniv
>              Labels: capacity-scheduler, resourcemanager
>         Attachments: LowCostRayonExternal.pdf, YARN-3656-v1.1.patch, YARN-3656-v1.2.patch,
YARN-3656-v1.3.patch, YARN-3656-v1.patch, lowcostrayonexternal_v2.pdf
>
>
> YARN-1051 enables SLA support by allowing users to reserve cluster capacity ahead of
time. YARN-1710 introduced a greedy agent for placing user reservations. The greedy agent
makes fast placement decisions but at the cost of ignoring the cluster committed resources,
which might result in blocking the cluster resources for certain periods of time, and in turn
rejecting some arriving jobs.
> We propose LowCost – a new cost-based planning algorithm. LowCost “spreads” the
demand of the job throughout the allowed time-window according to a global, load-based cost
function. 



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