Tomcat错误-Port already in use

最新推荐文章于 2025-06-04 10:26:14 发布

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最新推荐文章于 2025-06-04 10:26:14 发布

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本文介绍了解决Tomcat启动时遇到的JMX端口9999已被占用的问题，通过调整CATALINA_OPTS配置，区分了不同场景下的JVM参数设置，确保了Tomcat及其管理工具能够正常运行。

错误现象：
root@tomcat2:[/usr]vim /data/tomcat2/bin/shutdown.sh
root@tomcat2:[/usr]/data/hstomcatinit.sh stop
Using CATALINA_BASE: /data/tomcat2
Using CATALINA_HOME: /data/tomcat2
Using CATALINA_TMPDIR: /data/tomcat2/temp
Using JRE_HOME: /usr/java/jdk1.6.0_41
Using CLASSPATH: /data/tomcat2/bin/bootstrap.jar:/data/tomcat2/bin/tomcat-juli.jar
错误: 代理抛出异常 : java.rmi.server.ExportException: Port already in use: 9999; nested exception is:
java.net.BindException: Address already in use
root@tomcat2:[/usr]

解决方法：
不能使用JAVA_OPTS，二者区别

JAVA_OPTS (Optional) Java runtime options used when any command

is executed.

Include here and not in CATALINA_OPTS all options, that

should be used by Tomcat and also by the stop process,

the version command etc.

Most options should go into CATALINA_OPTS.

CATALINA_OPTS (Optional) Java runtime options used when the “start”,

“run” or “debug” command is executed.

Include here and not in JAVA_OPTS all options, that should

only be used by Tomcat itself, not by the stop process,

the version command etc.

Examples are heap size, GC logging, JMX ports etc.

修改后
CATALINA_OPTS=”-server -Xms1100M -Xmx1100M -Xss194k -XX:NewSize=300M -XX:MaxNewSize=400M -XX:MaxPermSize=128M -XX:+HeapDumpOnOutOfMemoryError -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:HeapDumpPath= $CATALINA_BASE/log/heap.hprof -Dproject=gameserver -Djava.rmi.server.hostname=218.108.129.7 -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=9999 -Dcom.sun.management.jmxremote.authenticate=true -Dcom.sun.management.jmxremote.ssl=false -verbose:gc -XX:+PrintGCTimeStamps -XX:+PrintGCDetails -Xloggc:$ CATALINA_BASE/log/gc.log”