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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-574) PrivateLocalizer does not support parallel resource download via ContainerLocalizer
Date Fri, 05 Jun 2015 18:39:01 GMT

    [ https://issues.apache.org/jira/browse/YARN-574?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14574988#comment-14574988
] 

Hadoop QA commented on YARN-574:
--------------------------------

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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  17m 17s | Pre-patch trunk compilation is healthy. |
| {color:green}+1{color} | @author |   0m  0s | The patch does not contain any @author tags.
|
| {color:red}-1{color} | tests included |   0m  0s | The patch doesn't appear to include any
new or modified tests.  Please justify why no new tests are needed for this patch. Also please
list what manual steps were performed to verify this patch. |
| {color:green}+1{color} | javac |   7m 37s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |   9m 37s | 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 |   1m 18s | The applied patch generated  2 new checkstyle
issues (total was 213, now 214). |
| {color:green}+1{color} | whitespace |   0m  0s | The patch has no lines that end in whitespace.
|
| {color:green}+1{color} | install |   1m 36s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 33s | The patch built with eclipse:eclipse.
|
| {color:green}+1{color} | findbugs |   2m 44s | The patch does not introduce any new Findbugs
(version 3.0.0) warnings. |
| {color:green}+1{color} | yarn tests |   0m 26s | Tests passed in hadoop-yarn-api. |
| {color:green}+1{color} | yarn tests |   6m  4s | Tests passed in hadoop-yarn-server-nodemanager.
|
| | |  47m 49s | |
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12737994/YARN-574.1.patch |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 7588585 |
| checkstyle |  https://builds.apache.org/job/PreCommit-YARN-Build/8199/artifact/patchprocess/diffcheckstylehadoop-yarn-api.txt
|
| hadoop-yarn-api test log | https://builds.apache.org/job/PreCommit-YARN-Build/8199/artifact/patchprocess/testrun_hadoop-yarn-api.txt
|
| hadoop-yarn-server-nodemanager test log | https://builds.apache.org/job/PreCommit-YARN-Build/8199/artifact/patchprocess/testrun_hadoop-yarn-server-nodemanager.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-YARN-Build/8199/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf905.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/8199/console |


This message was automatically generated.

> PrivateLocalizer does not support parallel resource download via ContainerLocalizer
> -----------------------------------------------------------------------------------
>
>                 Key: YARN-574
>                 URL: https://issues.apache.org/jira/browse/YARN-574
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>    Affects Versions: 2.6.0, 2.8.0, 2.7.1
>            Reporter: Omkar Vinit Joshi
>            Assignee: Omkar Vinit Joshi
>         Attachments: YARN-574.1.patch
>
>
> At present private resources will be downloaded in parallel only if multiple containers
request the same resource. However otherwise it will be serial. The protocol between PrivateLocalizer
and ContainerLocalizer supports multiple downloads however it is not used and only one resource
is sent for downloading at a time.
> I think we can increase / assure parallelism (even for single container requesting resource)
for private/application resources by making multiple downloads per ContainerLocalizer.
> Total Parallelism before
> = number of threads allotted for PublicLocalizer [public resource] + number of containers[private
and application resource]
> Total Parallelism after
> = number of threads allotted for PublicLocalizer [public resource] + number of containers
* max downloads per container [private and application resource]



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