Updating the YARN ResourceManager configuration

If you have MapR, you must set the yarn.resourcemanager.hostname property in yarn-site.xml to the fully-qualified domain name (FQDN) of your YARN ResourceManager.

Note that this isn't required if you have CDH or HDP.

The property is set to 0.0.0.0 by default. To update it, run the following command on the machine hosting MCS:

/opt/mapr/server/configure.sh -C <cldb_host>[:<cldb_port>][,<cldb_host>[:<cldb_port>]...] 
-Z <zk_host>[:<zk_port>][,<zk_host>[:<zk_port>]...] [-RM <rm_host>] [-HS <hs_host>] [-L <logfile>]
[-N <cluster_name>]

Where:

<cldb_host> and <cldb_port> are the FQDNs and ports of your container location database (CLDB) nodes
<zk_host> and <zk_port> are the FQDNs and ports of your ZooKeeper nodes
<rm_host> is the FQDN of your ResourceManager
<hs_host> is the FQDN of your HistoryServer
<logfile> is the log file configure.sh will write to
<cluster_name> is the name of your MapR cluster

For more information on updating node configuration, see configure.sh in MapR's documentation.