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From "cntic (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-2681) Support bandwidth enforcement for containers while reading from HDFS
Date Wed, 01 Jul 2015 18:04:05 GMT

     [ https://issues.apache.org/jira/browse/YARN-2681?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

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

Merged with the latest trunk

> 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.patch, HADOOP-2681.patch, HDFS-2681.02.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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