D4Science Infrastructure

I see the exception below on catalina.log when the tomcat is started but nothing is running on port 9000 and the /etc/hosts file seems to be ok. Could anyone here help me, please?

2018-04-17 15:09:02,697 [main] INFO  org.apache.coyote.http11.Http11Protocol- Starting ProtocolHandler ["http-bio-127.0.0.1-9000"]
2018-04-17 15:09:02,699 [main] ERROR org.apache.coyote.http11.Http11Protocol- Failed to start end point associated with ProtocolHandler ["http-bio-127.0.0.1-9000"]
java.net.BindException: Cannot assign requested address (Bind failed) /127.0.0.1:9000
    at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:410)
    at org.apache.tomcat.util.net.AbstractEndpoint.start(AbstractEndpoint.java:647)
    at org.apache.coyote.AbstractProtocol.start(AbstractProtocol.java:449)
    at org.apache.catalina.connector.Connector.startInternal(Connector.java:1007)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:459)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:731)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:689)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:321)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:455)
Caused by: java.net.BindException: Cannot assign requested address (Bind failed)
    at java.net.PlainSocketImpl.socketBind(Native Method)
    at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:387)
    at java.net.ServerSocket.bind(ServerSocket.java:375)
    at java.net.ServerSocket.<init>(ServerSocket.java:237)
    at org.apache.tomcat.util.net.DefaultServerSocketFactory.createSocket(DefaultServerSocketFactory.java:55)
    at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:400)
    ... 15 more
2018-04-17 15:09:02,701 [main] ERROR org.apache.catalina.core.StandardService- Failed to start connector [Connector[HTTP/1.1-9000]]
org.apache.catalina.LifecycleException: Failed to start component [Connector[HTTP/1.1-9000]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:459)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:731)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:689)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:321)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:455)
Caused by: org.apache.catalina.LifecycleException: service.getName(): "Catalina";  Protocol handler start failed
    at org.apache.catalina.connector.Connector.startInternal(Connector.java:1014)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 11 more
Caused by: java.net.BindException: Cannot assign requested address (Bind failed) /127.0.0.1:9000
    at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:410)
    at org.apache.tomcat.util.net.AbstractEndpoint.start(AbstractEndpoint.java:647)
    at org.apache.coyote.AbstractProtocol.start(AbstractProtocol.java:449)
    at org.apache.catalina.connector.Connector.startInternal(Connector.java:1007)
    ... 12 more
Caused by: java.net.BindException: Cannot assign requested address (Bind failed)
    at java.net.PlainSocketImpl.socketBind(Native Method)
    at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:387)
    at java.net.ServerSocket.bind(ServerSocket.java:375)
    at java.net.ServerSocket.<init>(ServerSocket.java:237)
    at org.apache.tomcat.util.net.DefaultServerSocketFactory.createSocket(DefaultServerSocketFactory.java:55)
    at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:400)
    ... 15 more
2018-04-17 15:09:02,702 [main] INFO  org.apache.catalina.startup.Catalina- Server startup in 13218 ms