I got this error when I click "Track URL: ApplicationMaster" when I run a spark job in YARN cluster mode. I found this jira https://issues.apache.org/jira/browse/YARN-800, but I could not get this problem fixed. I'm running CDH 5.1.0 with Both HDFS and RM HA enabled. Does anybody has the similar issue? How do you fix this?HTTP ERROR 500
Problem accessing /proxy/application_1418016558670_0193/. Reason: Connection refused Caused by: java.net.ConnectException: Connection refused at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)