Failed to start Hadoop

[#1]

I'm working on Cloudera Quickstart VM 5.13 and I'm trying to start hadoop; But i'm getting these errors: 

Failed to start Hadoop proxyserver. Return value: 1 [FAILED]

Failed to start Hadoop secondarynamenode. Return value: 1 [FAILED]

In the log file for the secondarynamenode i have this exception:

HttpServer.start() threw a non Bind IOException
java.net.BindException: Port in use: 0.0.0.0:50090
at org.apache.hadoop.http.HttpServer2.openListeners(HttpServer2.java:959)
at org.apache.hadoop.http.HttpServer2.start(HttpServer2.java:895)
at org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.startInfoServer(SecondaryNameNode.java:488)
at org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.main(SecondaryNameNode.java:691)
Caused by: java.net.BindException: Address already in use
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Net.java:444)
at sun.nio.ch.Net.bind(Net.java:436)
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:214)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
at org.mortbay.jetty.nio.SelectChannelConnector.open(SelectChannelConnector.java:216)
at org.apache.hadoop.http.HttpServer2.openListeners(HttpServer2.java:954)
... 3 more
Failed to start secondary namenode
java.net.BindException: Port in use: 0.0.0.0:50090
at org.apache.hadoop.http.HttpServer2.openListeners(HttpServer2.java:959)
at org.apache.hadoop.http.HttpServer2.start(HttpServer2.java:895)
at org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.startInfoServer(SecondaryNameNode.java:488)
at org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.main(SecondaryNameNode.java:691)
Caused by: java.net.BindException: Address already in use
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Net.java:444)
at sun.nio.ch.Net.bind(Net.java:436)
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:214)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
at org.mortbay.jetty.nio.SelectChannelConnector.open(SelectChannelConnector.java:216)
at org.apache.hadoop.http.HttpServer2.openListeners(HttpServer2.java:954)
... 3 more
Exiting with status 1

And this for the proxyserver:

Service org.apache.hadoop.yarn.server.webproxy.WebAppProxy failed in state INITED; cause: org.apache.hadoop.yarn.exceptions.YarnRuntimeException: yarn.web-proxy.address is not set so the proxy will not run.
org.apache.hadoop.yarn.exceptions.YarnRuntimeException: yarn.web-proxy.address is not set so the proxy will not run.
at org.apache.hadoop.yarn.server.webproxy.WebAppProxy.serviceInit(WebAppProxy.java:76)
at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
at org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:107)
at org.apache.hadoop.yarn.server.webproxy.WebAppProxyServer.serviceInit(WebAppProxyServer.java:73)
at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
at org.apache.hadoop.yarn.server.webproxy.WebAppProxyServer.startServer(WebAppProxyServer.java:132)
at org.apache.hadoop.yarn.server.webproxy.WebAppProxyServer.main(WebAppProxyServer.java:115)
Service org.apache.hadoop.yarn.server.webproxy.WebAppProxyServer failed in state INITED; cause: org.apache.hadoop.yarn.exceptions.YarnRuntimeException: yarn.web-proxy.address is not set so the proxy will not run.
org.apache.hadoop.yarn.exceptions.YarnRuntimeException: yarn.web-proxy.address is not set so the proxy will not run.
at org.apache.hadoop.yarn.server.webproxy.WebAppProxy.serviceInit(WebAppProxy.java:76)
at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
at org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:107)
at org.apache.hadoop.yarn.server.webproxy.WebAppProxyServer.serviceInit(WebAppProxyServer.java:73)
at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
at org.apache.hadoop.yarn.server.webproxy.WebAppProxyServer.startServer(WebAppProxyServer.java:132)
at org.apache.hadoop.yarn.server.webproxy.WebAppProxyServer.main(WebAppProxyServer.java:115)
Stopping WebAppProxyServer metrics system...
WebAppProxyServer metrics system stopped.
WebAppProxyServer metrics system shutdown complete.
Exiting with status -1

[#2]

We are seeing port bind exception in the error stack trace which basically means the secondary NN service is unable to register itself on that port. Port 50090 is the internal port defined by this property "dfs.secondary.http.address or dfs.namenode. secondary. http-address".

So please run "netstat -anp | grep 50090" and see which process is using the port in question. Stop that process and try starting Secondary NN service or else we need to change the default port in the abovementioned property to some other non-used port.