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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 Tue, 21 Oct 2014 10:23:34 GMT

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

cntic updated YARN-2681:
------------------------
    Affects Version/s:     (was: 2.4.0)
                       2.5.1

> 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: capacityscheduler, nodemanager, resourcemanager
>    Affects Versions: 2.5.1
>         Environment: Linux
>            Reporter: cntic
>         Attachments: 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



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