linux 下tomcat端口号换了好几个，启动时日志里面还是显示端口被占用，而且进程kill也没用。这是为什么？

[qq_35816571]

Using CATALINA_BASE: /usr/java/tomcat/apache-tomcat-9.0.1
Using CATALINA_HOME: /usr/java/tomcat/apache-tomcat-9.0.1
Using CATALINA_TMPDIR: /usr/java/tomcat/apache-tomcat-9.0.1/temp
Using JRE_HOME: /usr/java/jdk/jdk1.8.0_151/jre
Using CLASSPATH: /usr/java/tomcat/apache-tomcat-9.0.1/bin/bootstrap.jar:/usr/java/tomcat/apache-tomcat-9.0.1/bin/tomcat-juli.jar
05-Nov-2017 09:46:18.858 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version: Apache Tomcat/9.0.1
05-Nov-2017 09:46:18.860 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server built: Sep 27 2017 17:31:52 UTC
05-Nov-2017 09:46:18.860 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server number: 9.0.1.0
05-Nov-2017 09:46:18.860 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name: Linux
05-Nov-2017 09:46:18.860 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Version: 4.4.74-92.35-default
05-Nov-2017 09:46:18.860 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Architecture: amd64
05-Nov-2017 09:46:18.860 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Java Home: /usr/java/jdk/jdk1.8.0_151/jre
05-Nov-2017 09:46:18.862 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Version: 1.8.0_151-b12
05-Nov-2017 09:46:18.862 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor: Oracle Corporation
05-Nov-2017 09:46:18.862 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE: /usr/java/tomcat/apache-tomcat-9.0.1
05-Nov-2017 09:46:18.862 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME: /usr/java/tomcat/apache-tomcat-9.0.1
05-Nov-2017 09:46:18.863 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=/usr/java/tomcat/apache-tomcat-9.0.1/conf/logging.properties
05-Nov-2017 09:46:18.863 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
05-Nov-2017 09:46:18.863 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djdk.tls.ephemeralDHKeySize=2048
05-Nov-2017 09:46:18.864 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources
05-Nov-2017 09:46:18.864 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=/usr/java/tomcat/apache-tomcat-9.0.1
05-Nov-2017 09:46:18.865 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=/usr/java/tomcat/apache-tomcat-9.0.1
05-Nov-2017 09:46:18.865 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=/usr/java/tomcat/apache-tomcat-9.0.1/temp
05-Nov-2017 09:46:18.865 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib]
05-Nov-2017 09:46:19.076 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-nio-9090"]
05-Nov-2017 09:46:19.104 SEVERE [main] org.apache.catalina.util.LifecycleBase.handleSubClassException Failed to initialize component [Connector[HTTP/1.1-9090]]
org.apache.catalina.LifecycleException: Protocol handler initialization failed
at org.apache.catalina.connector.Connector.initInternal(Connector.java:935)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
at org.apache.catalina.core.StandardService.initInternal(StandardService.java:530)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:852)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
at org.apache.catalina.startup.Catalina.load(Catalina.java:622)
at org.apache.catalina.startup.Catalina.load(Catalina.java:645)
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.load(Bootstrap.java:311)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:494)
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:433)
at sun.nio.ch.Net.bind(Net.java:425)
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
at org.apache.tomcat.util.net.NioEndpoint.initServerSocket(NioEndpoint.java:227)
at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:202)
at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:1039)
at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:540)
at org.apache.coyote.http11.AbstractHttp11Protocol.init(AbstractHttp11Protocol.java:70)
at org.apache.catalina.connector.Connector.initInternal(Connector.java:932)
... 13 more

05-Nov-2017 09:46:19.106 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["ajp-nio-8009"]
05-Nov-2017 09:46:19.108 SEVERE [main] org.apache.catalina.util.LifecycleBase.handleSubClassException Failed to initialize component [Connector[AJP/1.3-8009]]
org.apache.catalina.LifecycleException: Protocol handler initialization failed
at org.apache.catalina.connector.Connector.initInternal(Connector.java:935)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
at org.apache.catalina.core.StandardService.initInternal(StandardService.java:530)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:852)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
at org.apache.catalina.startup.Catalina.load(Catalina.java:622)
at org.apache.catalina.startup.Catalina.load(Catalina.java:645)
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.load(Bootstrap.java:311)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:494)
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:433)
at sun.nio.ch.Net.bind(Net.java:425)
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
at org.apache.tomcat.util.net.NioEndpoint.initServerSocket(NioEndpoint.java:227)
at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:202)
at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:1039)
at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:540)
at org.apache.catalina.connector.Connector.initInternal(Connector.java:932)
... 13 more

java.net.BindException: Address already in use (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.catalina.core.StandardServer.await(StandardServer.java:422)
at org.apache.catalina.startup.Catalina.await(Catalina.java:759)
at org.apache.catalina.startup.Catalina.start(Catalina.java:705)
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:355)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:495)

05-Nov-2017 09:46:20.164 INFO [main] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["http-nio-9090"]
05-Nov-2017 09:46:20.164 INFO [main] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["ajp-nio-8009"]
05-Nov-2017 09:46:20.164 INFO [main] org.apache.catalina.core.StandardService.stopInternal Stopping service [Catalina]
05-Nov-2017 09:46:20.203 INFO [main] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["http-nio-9090"]
05-Nov-2017 09:46:20.203 INFO [main] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["http-nio-9090"]
05-Nov-2017 09:46:20.203 INFO [main] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["ajp-nio-8009"]
05-Nov-2017 09:46:20.204 INFO [main] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["ajp-nio-8009"]