The reason is that zookeeper did not start
Internal Server Errororg.apache.thrift7.transport.TTransportException:java.net.ConnectException:Connection Refused (Connection refused) at Org.apache.thrift7.transport.TSocket.open (Tsocket.java:183) at Org.apache.thrift7.transport.TFramedTransport.open (Tframedtransport.java:Bayi) at Backtype.storm.thrift$nimbus_client_and_conn.invoke (THRIFT.CLJ: the) at Backtype.storm.ui.core$all_topologies_summary.invoke (CORE.CLJ:515) at Backtype.storm.ui.core$fn__6094.invoke (CORE.CLJ:851) at Compojure.core$make_route$fn__4275.invoke (CORE.CLJ: the) at Compojure.core$if_route$fn__4263.invoke (CORE.CLJ: the) at Compojure.core$if_method$fn__4256.invoke (CORE.CLJ: -) at Compojure.core$routing$fn__4281.invoke (CORE.CLJ:106) at Clojure.core$some.invoke (CORE.CLJ:2443) at Compojure.core$routing.doinvoke (CORE.CLJ:106) at Clojure.lang.RestFn.applyTo (Restfn.java:139) at Clojure.core$apply.invoke (CORE.CLJ:619) at Compojure.core$routes$fn__4285.invoke (CORE.CLJ:111) at Ring.middleware.reload$wrap_reload$fn__4310.invoke (RELOAD.CLJ: -) at Backtype.storm.ui.core$catch_errors$fn__6135.invoke (CORE.CLJ:909) at Ring.middleware.keyword_params$wrap_keyword_params$fn__4952.invoke (KEYWORD_PARAMS.CLJ: -) at Ring.middleware.nested_params$wrap_nested_params$fn__4991.invoke (NESTED_PARAMS.CLJ: $) at Ring.middleware.params$wrap _params$fn__4924.invoke (params. CLJ: -) at Ring.middleware.multipart_params$wrap_multipart_params$fn__5019.invoke (MULTIPART_PARAMS.CLJ:103) at Ring.middleware.flash$wrap_flash$fn__5200.invoke (FLASH.CLJ: -) at Ring.middleware.session$wrap_session$fn__5189.invoke (SESSION.CLJ: +) at Ring.middleware.cookies$wrap_cookies$fn__5120.invoke (COOKIES.CLJ: the) at Ring.adapter.jetty$proxy_handler$fn__5400.invoke (JETTY.CLJ: -) at ring.adapter.jetty.proxy$org.mortbay.jetty.handler.abstracthandler$0. Handle (Unknown Source) at Org.mortbay.jetty.handler.HandlerWrapper.handle (Handlerwrapper.java: the) at Org.mortbay.jetty.Server.handle (Server.java:326) at Org.mortbay.jetty.HttpConnection.handleRequest (Httpconnection.java:542) at Org.mortbay.jetty.httpconnection$requesthandler.headercomplete (Httpconnection.java:928) at Org.mortbay.jetty.HttpParser.parseNext (Httpparser.java:549) at org.mortbay.jetty.HttpParser.parseAvailable (Httpparser.java:212) at Org.mortbay.jetty.HttpConnection.handle (Httpconnection.java:404) at Org.mortbay.jetty.bio.socketconnector$connection.run (Socketconnector.java:228) at Org.mortbay.thread.queuedthreadpool$poolthread.run (Queuedthreadpool.java:582) caused By:java.net.ConnectException:Connection refused (Connection refused) at Java.net.PlainSocketImpl.socketC Onnect (Native Method) at Java.net.AbstractPlainSocketImpl.doConnect (Abstractplainsocketimpl.java: -) at Java.net.AbstractPlainSocketImpl.connectToAddress (Abstractplainsocketimpl.java:206) at Java.net.AbstractPlainSocketImpl.connect (Abstractplainsocketimpl.java:188) at Java.net.SocksSocketImpl.connect (Sockssocketimpl.java:392) at Java.net.Socket.connect (Socket.java:589) at Org.apache.thrift7.transport.TSocket.open (Tsocket.java:178) ... -More
Browser access error After starting storm, org.apache.thrift7.transport.TTransportException:java.net.ConnectException:Connection Refused (Connection refused)