After rebooting the Hadoop System, I can't access the web UI of Hadoop. the Error is: HTTP ERROR: 404 /jobtracker.jsp RequestURI=/jobtracker.jsp Powered by Jetty:// and HTTP ERROR: 404 /dfshealth.jsp RequestURI=/dfshealth.jsp Powered by Jetty:// I have checked the port 50030 and 50070,and confirmed that jobtracker process and all nodes are working well. I also can get the running information using commands like: bin/hadoop dfsadmin -report So, I don't know why this error happens. Thanks.
