[
https://issues.apache.org/jira/browse/SAMZA-619?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14715590#comment-14715590
]
Navina Ramesh commented on SAMZA-619:
-------------------------------------
You can test host-affinity by:
Configuring Yarn Grid with the following properties:
{code}
<property>
<name>yarn.resourcemanager.scheduler.class</name>
<value>org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler</value>
</property>
<property>
<name>yarn.scheduler.fair.continuous-scheduling-enabled</name>
<value>true</value>
</property>
<property>
<name>yarn.schedular.fair.locality-delay-node-ms</name>
<value>5000</value>
</property>
<property>
<name>yarn.schedular.fair.locality-delay-rack-ms</name>
<value>5000</value>
</property>
{code}
Configuring Sample Job with:
{code}
yarn.samza.host-affinity.enabled=true
{code}
> Modify Samza AppMaster to enable host-affinity
> ----------------------------------------------
>
> Key: SAMZA-619
> URL: https://issues.apache.org/jira/browse/SAMZA-619
> Project: Samza
> Issue Type: Task
> Reporter: Navina Ramesh
> Assignee: Navina Ramesh
> Attachments: SAMZA-619-0.patch
>
>
> In order to enable host-affinity in YARN, the Samza App Master must include
> the node list in the resource request.
> The node list can be obtained from the Job Coordinator that provides the
> container-to-host mapping (SAMZA-618)
> YARN must also be configured to use FairScheduler with continuous scheduling.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
