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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2681) Support bandwidth enforcement for containers while reading from HDFS
Date Sat, 17 Nov 2018 03:33:01 GMT

    [ https://issues.apache.org/jira/browse/YARN-2681?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16690355#comment-16690355
] 

Hadoop QA commented on YARN-2681:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m  0s{color} | {color:blue}
Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red}  0m  6s{color} | {color:red}
YARN-2681 does not apply to trunk. Rebase required? Wrong Branch? See https://wiki.apache.org/hadoop/HowToContribute
for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | YARN-2681 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12745824/YARN-2681.005.patch
|
| Console output | https://builds.apache.org/job/PreCommit-YARN-Build/22581/console |
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This message was automatically generated.



> Support bandwidth enforcement for containers while reading from HDFS
> --------------------------------------------------------------------
>
>                 Key: YARN-2681
>                 URL: https://issues.apache.org/jira/browse/YARN-2681
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: nodemanager
>    Affects Versions: 2.5.1
>         Environment: Linux
>            Reporter: Nam H. Do
>            Priority: Major
>         Attachments: Traffic Control Design.png, YARN-2681.001.patch, YARN-2681.002.patch,
YARN-2681.003.patch, YARN-2681.004.patch, YARN-2681.005.patch, YARN-2681.patch
>
>
> To read/write data from HDFS on data node, applications establise TCP/IP connections
with the datanode. The HDFS read can be controled by setting Linux Traffic Control  (TC) subsystem
on the data node to make filters on appropriate connections.
> The current cgroups net_cls concept can not be applied on the node where the container
is launched, netheir on data node since:
> -   TC hanldes outgoing bandwidth only, so it can be set on container node (HDFS read
= incoming data for the container)
> -   Since HDFS data node is handled by only one process,  it is not possible to use net_cls
to separate connections from different containers to the datanode.
> Tasks:
> 1) Extend Resource model to define bandwidth enforcement rate
> 2) Monitor TCP/IP connection estabilised by container handling process and its child
processes
> 3) Set Linux Traffic Control rules on data node base on address:port pairs in order to
enforce bandwidth of outgoing data
> Concept: http://www.hit.bme.hu/~do/papers/EnforcementDesign.pdf
> Implementation: 
> http://www.hit.bme.hu/~dohoai/documents/HdfsTrafficControl.pdf
> http://www.hit.bme.hu/~dohoai/documents/HdfsTrafficControl_UML_diagram.png



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