Node labels can be used to restrict YARN applications so that the applications run only on cluster nodes that have a specified node label. Node Labels are supported on Windows. To enable node label support, make the following changes. See the Linux Node Labels documentation for more information. If you do not plan to use node labels, none of these changes are needed.
Open the command prompt using the
hadoopaccount:runas /user:hadoop cmd
Create a top-level YARN application directory in HDFS:
%HADOOP_HOME%\bin\hdfs dfs -mkdir -p /system/yarn/node-labels
Make sure permissions are set for write access from the
hadoopaccount (rwx for all the directories in the path).Change the owner of the file to
hadoop:%HADOOP_HOME%\bin\hdfs dfs -chown -R hadoop:users /system/yarn %HADOOP_HOME%\bin\hdfs dfs -chmod -R 700 /system/yarn
Add the following property values to
yarn-site.xml:Table 4.2. Required properties
Property
Value
yarn.node-labels.manager-class
org.apache.hadoop.yarn.server.resourcemanager. nodelabels.RMNodeLabelsManager
yarn.node-labels.fs-store.root-dir
/system/yarn/node-labels
yarn.node-labels.fs-store.retry-policy-spec
2000,500
To verify that the installation process succeeded, run smoke tests as described in Validating the Installation.
