jmx

运行超时的 是因为在server端运行命令执行脚本，是server给agent下达的指定，但是server端到agent的10050端口没开，所以或一致堵死在那，知道执行超时， 解决：开通server端到agent的10050端口。 运行报错，提示错误的语法 正常jmx脚本跑在py2.6的机器上，报错的那两台机器是2.4的版本 可能是因为解释器版本的不同导致的语法解析错误，对于2.4的版本重新更改脚本。 来源： https://www.cnblogs.com/0916m/p/11688912.html

JMX JMX的全称为Java Management Extensions. 顾名思义，是管理Java的一种扩展。这种机制可以方便的管理、监控正在运行中的Java程序。常用于管理线程，内存，日志Level，服务重启，系统环境等 基本术语 MBean： 是Managed Bean的简称，可以翻译为“管理构件”。在JMX中MBean代表一个被管理的资源实例，通过MBean中暴露的方法和属性，外界可以获取被管理的资源的状态和操纵MBean的行为。事实上，MBean就是一个Java Object，同JavaBean模型一样，外界使用自醒和反射来获取Object的值和调用Object的方法，只是MBean更为复杂和高级一些。MBean通过公共方法以及遵从特定的设计模式封装了属性和操作，以便暴露给管理应用程序。例如，一个只读属性在管理构件中只有Get方法，既有Get又有Set方法表示是一个可读写的属性。一共有四种类型的MBean: Standard MBean, Dynamic MBean, Open MBean, Model MBean。 MBeanServer： MBean生存在一个MBeanServer中。MBeanServer管理这些MBean，并且代理外界对它们的访问。并且MBeanServer提供了一种注册机制，是的外界可以通过名字来得到相应的MBean实例。 JMX Agent：

I'm on a vista machine. I've started tomcat 5.5.27 with these options: CATALINA_OPTS="-Dcom.sun.management.jmxremote.port=9003 \ -Dcom.sun.management.jmxremote.ssl=false \ -Dcom.sun.management.jmxremote.authenticate=false" When I connect via jconsole and added the following service url service:jmx:rmi:///jndi/rmi://localhost:9003/jmxrmi it would not connect. Any ideas ? On Ubuntu 10.04, using OpenJDK 6 and Tomcat 6.0.29, I was unable to activate JMX for a local jconsole session, no matter how many com.sun.management.jmxremote.* options I passed to java with CATALINA_OPTS. The problem was the

Kafka 0.8.1.1 (kafka_2.8.0-0.8.1.1.tgz) I am using jmxtrans to do JMX monitoring of a Kafka instance (which is running in docker). Unfortunately, kafka metrics are not being returned. I have tried a few things to debug this and know that kafka is running correctly (I can produce/consume messages successfully) have concluded that jmxtrans does return JMX metrics (for example, java.lang:type=Memory, attribute=HeapMemoryUsage returns correct data) so the general kafka and JMX capability seems to be working. Also, I can access the metrics when I use jconsole -- the metrics seem to be captured with

Given: A JMS message queue. A timer service which puts messages to that queue periodically (from a database). A JEE6 message-driven bean which reads from the queue. The timer service and the message-driven bean are part of different deployment units. Problem: The message-driven bean cannot be undeployed, without breaking the workflow state, as long as messages are work in process. Because of that, we stop the timer service first and wait until all messages are finished. Is there a way to automate that behavior? Or is it possible to prevent undeployment if the timer service is still running? We

I am trying to get the instance of a service class bound in jboss-service.xml using MBean. JBoss-Service.xml has defined a BasicThreadPool which we want to use it in our code. This is what it is in JBOSS-Service.xml . <mbean code="org.jboss.util.threadpool.BasicThreadPool" name="jboss.system:service=ThreadPool"> <attribute name="Name">JBoss System Threads</attribute> <attribute name="ThreadGroupName">System Threads</attribute> <attribute name="KeepAliveTime">60000</attribute> <attribute name="MaximumPoolSize">10</attribute> <attribute name="MaximumQueueSize">1000</attribute> <!-- The behavior