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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3945) maxApplicationsPerUser is wrongly calculated
Date Wed, 29 Jul 2015 12:22:05 GMT

    [ https://issues.apache.org/jira/browse/YARN-3945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14645959#comment-14645959
] 

Hadoop QA commented on YARN-3945:
---------------------------------

\\
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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  0s | 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 2 new
or modified test files. |
| {color:green}+1{color} | javac |   7m 43s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |   9m 38s | There were no new javadoc warning messages.
|
| {color:green}+1{color} | release audit |   0m 22s | The applied patch does not increase
the total number of release audit warnings. |
| {color:red}-1{color} | checkstyle |   0m 48s | The applied patch generated  1 new checkstyle
issues (total was 92, now 91). |
| {color:red}-1{color} | whitespace |   0m  0s | The patch has 2  line(s) that end in whitespace.
Use git apply --whitespace=fix. |
| {color:green}+1{color} | install |   1m 20s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 32s | The patch built with eclipse:eclipse.
|
| {color:green}+1{color} | findbugs |   1m 26s | The patch does not introduce any new Findbugs
(version 3.0.0) warnings. |
| {color:green}+1{color} | yarn tests |  52m 13s | Tests passed in hadoop-yarn-server-resourcemanager.
|
| | |  90m  5s | |
\\
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12747768/YARN-3945.20150729-1.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 6374ee0 |
| checkstyle |  https://builds.apache.org/job/PreCommit-YARN-Build/8704/artifact/patchprocess/diffcheckstylehadoop-yarn-server-resourcemanager.txt
|
| whitespace | https://builds.apache.org/job/PreCommit-YARN-Build/8704/artifact/patchprocess/whitespace.txt
|
| hadoop-yarn-server-resourcemanager test log | https://builds.apache.org/job/PreCommit-YARN-Build/8704/artifact/patchprocess/testrun_hadoop-yarn-server-resourcemanager.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-YARN-Build/8704/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf902.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/8704/console |


This message was automatically generated.

> maxApplicationsPerUser is wrongly calculated
> --------------------------------------------
>
>                 Key: YARN-3945
>                 URL: https://issues.apache.org/jira/browse/YARN-3945
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacityscheduler
>    Affects Versions: 2.7.1
>            Reporter: Naganarasimha G R
>            Assignee: Naganarasimha G R
>         Attachments: YARN-3945.20150728-1.patch, YARN-3945.20150729-1.patch
>
>
> maxApplicationsPerUser is currently calculated based on the formula
> {{maxApplicationsPerUser = (int)(maxApplications * (userLimit / 100.0f) * userLimitFactor)}}
but description of userlimit is 
> {quote}
> Each queue enforces a limit on the percentage of resources allocated to a user at any
given time, if there is demand for resources. The user limit can vary between a minimum and
maximum value.{color:red} The the former (the minimum value) is set to this property value
{color} and the latter (the maximum value) depends on the number of users who have submitted
applications. For e.g., suppose the value of this property is 25. If two users have submitted
applications to a queue, no single user can use more than 50% of the queue resources. If a
third user submits an application, no single user can use more than 33% of the queue resources.
With 4 or more users, no user can use more than 25% of the queues resources. A value of 100
implies no user limits are imposed. The default is 100. Value is specified as a integer.
> {quote}
> configuration related to minimum limit should not be made used in a formula to calculate
max applications for a user



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