THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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All clients that are connected to Resource Manager continue to work as long as the FQDN (for example, rmapprm.marathon.mesos) is used to connect to the Resource Manager. |
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Configuring Myriad for HA involves adding HA configuration properties to the $YARN_HOME/etc/hadoop/yarn-site.xml file and the $YARN_HOME/etc/hadoop/myriad-config-default.yml file.
To the $YARN_HOME/etc/hadoop/yarn-site.xml file file, add the following properties:
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<!-- HA configuration properties -->
<property>
<name>yarn.resourcemanager.store.class</name>
<value>org.apache.hadoop.yarn.server.resourcemanager.recovery.MyriadFileSystemRMStateStore</value>
</property>
<property>
<name>yarn.resourcemanager.fs.state-store.uri</name>
<!-- Path on HDFS, MapRFS etc -->
<value>/var/mapr/cluster/yarn/rm/system</value>
</property>
<property>
<name>yarn.resourcemanager.recovery.enabled</name>
<value>true</value>
</property>
<!-- If using MapR distro
<property>
<name>yarn.resourcemanager.ha.custom-ha-enabled</name>
<value>false</value>
</property> --> |
Launching Resource Manager
Launch the Resource Manager using Marathon. When launching, specify the yarn.resourcemanager.hostname property. The hostname is the ID field specified when launching a Marathon application.
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env && export YARN_RESOURCEMANAGER_OPTS=-Dyarn.resourcemanager.hostname=rmapp.marathon.mesos && yarn resourcemanager |
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To the $YARN_HOME/etc/hadoop/myriad-config-default.yml file, modify the following values:
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frameworkFailoverTimeout: <non-zero value>
haEnabled: true |
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The Myriad Mesos |