hadoop-yarn-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Sidharta Seethana (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3853) Add docker container runtime support to LinuxContainterExecutor
Date Thu, 09 Jul 2015 21:59:05 GMT

    [ https://issues.apache.org/jira/browse/YARN-3853?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14621353#comment-14621353
] 

Sidharta Seethana commented on YARN-3853:
-----------------------------------------

Updated the description to provide an overview of control flow.

> Add docker container runtime support to LinuxContainterExecutor
> ---------------------------------------------------------------
>
>                 Key: YARN-3853
>                 URL: https://issues.apache.org/jira/browse/YARN-3853
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: yarn
>            Reporter: Sidharta Seethana
>            Assignee: Sidharta Seethana
>         Attachments: YARN-3853.001.patch
>
>
> Create a new DockerContainerRuntime that implements support for docker containers via
container-executor. LinuxContainerExecutor should default to current behavior when launching
containers but switch to docker when requested. 
> Overview
> ===
> The current mechanism of launching/signaling containers is moved to its own (default)
container runtime. In order to use docker container runtime a couple of environment variables
have to be set. This will have to be revisited when we have a first class client side API
to specify different container types and associated parameters. Using ‘pi’ as an example
and using a custom docker image, this is how you could use the docker container runtime (LinuxContainerExecutor
must be in use and the docker daemon needs to be running) :
> {code}
> export YARN_EXAMPLES_JAR=./share/hadoop/mapreduce/hadoop-mapreduce-examples-*.jar
> bin/yarn jar $YARN_EXAMPLES_JAR pi -Dmapreduce.map.env="YARN_CONTAINER_RUNTIME_TYPE=docker,YARN_CONTAINER_RUNTIME_DOCKER_IMAGE=ashahab/hadoop-trunk"
-Dyarn.app.mapreduce.am.env="YARN_CONTAINER_RUNTIME_TYPE=docker,YARN_CONTAINER_RUNTIME_DOCKER_IMAGE=ashahab/hadoop-trunk"
 -Dmapreduce.reduce.env="YARN_CONTAINER_RUNTIME_TYPE=docker,YARN_CONTAINER_RUNTIME_DOCKER_IMAGE=ashahab/hadoop-trunk"
4 1000
> {code}
>  
> LinuxContainerExecutor can delegate to either runtime on a per container basis. If the
docker container type is selected, LinuxContainerExecutor delegates to the DockerContainerRuntime
which in turn uses docker support in the container-executor binary to launch/manage docker
containers ( see YARN-3852 ) . 



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message