cntic updated YARN-2681:
    Attachment: HADOOP-2681.02.patch

> 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: cntic
>              Labels: BB2015-05-TBR
>             Fix For: 2.7.0
>         Attachments: HADOOP-2681.02.patch, HADOOP-2681.patch, 
> HADOOP-2681.patch, HdfsTrafficControl_UML.png, Traffic Control Design.png
> 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

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