Hi I am trying to get the ApplicationMaster info using the <http://<proxy http address:port>/proxy/{appid}/ws/v1/mapreduce/info> link as described on the < http://hadoop.apache.org/common/docs/r2.0.0-alpha/hadoop-yarn/hadoop-yarn-site/MapredAppMasterRest.html> page.
I am able to access and retrieve JSON response for other modules (ResourceManager, NodeManager and HistoryServer). However, I am getting 'Page not found' when I try to use my ResourceManager Http address to access the ApplicationMaster info. I am using < http://localhost:8088/proxy/{appid}/ws/v1/mapreduce/info> to retrieve JSON response. The instructions say "The application master should be accessed via the proxy. This proxy is configurable to run either on the resource manager or on a separate host." My yarn-default.xml contains: <property> <description>The address for the web proxy as HOST:PORT, if this is not given then the proxy will run as part of the RM</description> <name>yarn.web-proxy.address</name> <value/> </property> and I did not set a value explicitly in yarn-site.xml. Any idea how I can get this working? Thanks in advance. Regards, Prajakta