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https://issues.apache.org/jira/browse/AMBARI-4943?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13919786#comment-13919786
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Srimanth Gunturi commented on AMBARI-4943:
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{{tez.am.resource.memory.mb}} is the same as
{{yarn.app.mapreduce.am.resource.mb}}.
{{tez.am.java.opts}} has -Xmx the same way as
{{yarn.app.mapreduce.am.command-opts}} - which is {{0.8 *
yarn.app.mapreduce.am.resource.mb}}
> Verify Tez configurations are according to recommended settings
> ---------------------------------------------------------------
>
> Key: AMBARI-4943
> URL: https://issues.apache.org/jira/browse/AMBARI-4943
> Project: Ambari
> Issue Type: Task
> Components: client
> Affects Versions: 1.5.0
> Reporter: Srimanth Gunturi
> Assignee: Srimanth Gunturi
> Fix For: 1.5.0
>
>
> Following TODOs might need to be looked at for smart config choices.
> {code}
> <property>
> <name>tez.lib.uris</name>
> <value>file:///usr/lib/tez/,file:///usr/lib/tez/lib/</value>
> <!-- TODO:Remove this
> value>${fs.default.name}/apps/tez/,${fs.default.name}/apps/tez/lib</value-->
> <description>The location of the Tez libraries which will be localized
> for DAGs</description>
> </property>
> {code}
> {code}
> <property>
> <name>tez.am.resource.memory.mb</name>
> <value>1536</value>
> <!-- TODO: Value needs to be set based on YARN configuration - similar to
> the way the MR AM size is set, 1.5 times the MR AM size -->
> <description>The amount of memory to be used by the
> AppMaster</description>
> </property>
> {code}
> {code}
> <property>
> <name>tez.am.java.opts</name>
> <value>-server -Xmx1024m -Djava.net.preferIPv4Stack=true -XX:+UseNUMA
> -XX:+UseParallelGC</value>
> <!-- TODO: Xmx value needs to be set based on tez.am.resource.memory.mb -
> typically at least 512MB less. Also this could have some additional hardware
> specific settings if Ambari supports it -->
> <description>Java options for the Tez AppMaster process</description>
> </property>
> {code}
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