i recently made the switch from hadoop 0.20.x to hadoop 2.3.0 (yes, big leap). i was wondering if there is a way to view my jobs now via a web UI? i used to be able to do this by accessing the following URL
http://hadoop-cluster:50030/jobtracker.jsp however, there is no more job tracker monitoring page here. furthermore, i am confused about MapReduce as an application running on top of YARN. so the documentation says MapReduce is just an application running on YARN. if that is true, how come i do not see MapReduce as an application on the ResourceManager web UI? http://hadoop-cluster:8088/cluster/apps is this because MapReduce is NOT a long-running app? meaning, a MapReduce job will only show up as an app in YARN when it is running? (please bear with me, i'm still adjusting to this new design). any help/pointer is appreciated.
