How-to-enable-Yarn-RM-HA-in-Knox

[#1]

<provider> 
<role>ha</role> 
<name>HaProvider</name> 
<enabled>true</enabled> 
<param> 
<name>RESOURCEMANAGER</name> 
<value>maxFailoverAttempts=3;failoverSleep=1000;enabled=true</value> 
</param> 
</provider> 

<service> 
<role>RESOURCEMANAGER</role> 
<url><Resource manager 1 url:8088>/ws</url> 
<url><Resource manager 2 url:8088/ws</url> 
</service>