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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 Mon, 13 Oct 2014 11:24:33 GMT

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

cntic updated YARN-2681:
------------------------
    Description: 
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) rules
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

> 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: 2.4.0
>         Environment: Linux
>            Reporter: cntic
>
> 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) rules
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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