jmx

Why does my Spring Boot App always shutdown immediately after starting?

匿名 (未验证) 提交于 2019-12-03 02:45:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: This is my first Spring Boot code. Unfortunately, it always shuts down. I was expecting it to run continuously so that my web client can get some data from the browser. package hello; import org.springframework.boot.*; import org.springframework.boot.autoconfigure.*; import org.springframework.stereotype.*; import org.springframework.web.bind.annotation.*; @Controller @EnableAutoConfiguration public class SampleController { @RequestMapping("/") @ResponseBody String home() { return "Hello World!"; } public static void main(String[] args)

Web based JMX console for Tomcat?

匿名 (未验证) 提交于 2019-12-03 02:45:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: Are there any web based JMX consoles available for Tomcat that basically provide the same functionality as Tomcat's JMX Proxy Servlet but in a more user friendly manner? I understand that I could simply use jconsole over RMI but this solution is not always applicable because of firewall issues. It also requires extra server-side configuration and in some organizations changing server-side configurations might not be that straight-forward. So what I would like to have is a simple war-file that I can just drop into my container without any

How do I create a thread dump via JMX?

匿名 (未验证) 提交于 2019-12-03 02:01:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I have a Tomcat running as a Windows Service, and those are known not to work well with jstack. jconsole is working well, on the other hand, and I can see stacks of individual threads (I'm connecting to "localhost:port" to access it). How can I use jconsole or a similar tool to dump all the thread stacks into a file? (similar to jstack) 回答1: You can use the ThreadMXBean management interface. This FullThreadDump class demonstrates the capability to get a full thread dump and also detect deadlock remotely using JMX. 回答2: Nowadays you can use

Accessing Apache ActiveMQ via JMX throws Exception

匿名 (未验证) 提交于 2019-12-03 01:49:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I'm using a fresh ActiveMQ 5.8.0 installation, where I have a message in a queue called 'testing'. I also replaced the ACTIVEMQ_SUNJMX line in bin/activemq to enable JMX: ACTIVEMQ_SUNJMX_START="-Dcom.sun.management.jmxremote.port=1099 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false" Then I query JMX via the following code: try { JMXConnector connector = JMXConnectorFactory.connect(new JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi")); connector.connect(); MBeanServerConnection

Why Java opens 3 ports when JMX is configured?

匿名 (未验证) 提交于 2019-12-03 01:12:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I run my Java program with JDK7 on Centos6. I enable JMX using the following options: JAVA_OPTS="${JAVA_OPTS} -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=9123 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.local.only=true" When I check what ports are opened I discover 2 additional random ports: netstat -plunt | grep java tcp 0 0 :::9123 :::* LISTEN 13295/java tcp 0 0 :::59927 :::* LISTEN 13295/java tcp 0 0 :::59928 :::* LISTEN 13295/java Please

JMX Defined [closed]

天大地大妈咪最大 提交于 2019-12-03 01:06:15
问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 7 years ago . I am looking for: What JMX is. Where I can find some good JMX Tutorials. What JMX can provide to me as a Java EE programmer. Anything

jmeter maven - running jmx file gives Error: Could not find or load main class org.apache.jmeter.NewDriver

匿名 (未验证) 提交于 2019-12-03 01:05:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: Setup a maven project for jmeter. Added the jmx file in src/test/java. When trying to run the jmx file, getting the following error in the console. Error: Could not find or load main class org.apache.jmeter.NewDriver Here is my pom.xml <? xml version = "1.0" encoding = "UTF-8" ?> <project xmlns = "http://maven.apache.org/POM/4.0.0" xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation = "http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" > <modelVersion> 4.0.0 </modelVersion>

spring boot 启动报错 Unregistering JMX-exposed beans on shutdown

匿名 (未验证) 提交于 2019-12-03 00:40:02
错误提示 SpingBoot:Unregistering JMX-exposed beans on shutdown 原因一:没有在pom.xml中添加 <dependency> </dependency> 如果添加了还是不能启动就看看原因二 原因二:因网络问题导致jar包没有下载成功,或不完全。 解决办法:到m2repository\org\apache\tomcat\embed\下删除tomcat-embed-core文件夹,重新下载。 文章来源: spring boot 启动报错 Unregistering JMX-exposed beans on shutdown

jmc使用说明

匿名 (未验证) 提交于 2019-12-03 00:38:01
实验JDK版本:jdk1.8.0_73 JMC:5.5(最新已经6.0了支持jdk9) JMC:Java Mission Control 伴随着5月份oracle的一份开源声明―- JMC Open Sourced JMC又一次备受关注。 JMC是源自JRockit JVM的一套监控和管理工具,Oracle在发布JAVA 7u4(Java 7 Update 40)时将其包含在JDK中,用户不再需要单独下载。 使用 JMC可以监视和管理 Java 应用程序,不会导致相关工具类的大幅度性能开销,它使用为 Java 虚拟机 (JVM) 的普通自适应动态优化收集的数据。 主要部分 JVM浏览器:显示了正在运行的 Java 应用程序及其 JVM,每个JVM实例称为一个JVM连接。JVM浏览器允许用户列出并连接到本地和远程运行的 Java 应用。它能够使用 Java 发现协议(JDP)自动地发现本地和远程运行的 Java 进程。 JMX 控制台:能够通过 JMX 接口管理并监控 JDK ,实时收集并显示其特征。它提供了实时集合、堆使用情况、CPU 负载以及其他通过 MBeans 暴露的和在 MBean 服务器中注册的信息,并可通过托管 Bean (MBean) 更改一些运行时属性。还可以创建在特定事件上触发的规则 (例如,如果应用程序的 CPU 占用率达到了 90%,则发送电子邮件)。 JFR

jmc使用说明

匿名 (未验证) 提交于 2019-12-03 00:37:01
实验JDK版本:jdk1.8.0_73 JMC:5.5(最新已经6.0了支持jdk9) JMC:Java Mission Control 伴随着5月份oracle的一份开源声明―- JMC Open Sourced JMC又一次备受关注。 JMC是源自JRockit JVM的一套监控和管理工具,Oracle在发布JAVA 7u4(Java 7 Update 40)时将其包含在JDK中,用户不再需要单独下载。 使用 JMC可以监视和管理 Java 应用程序,不会导致相关工具类的大幅度性能开销,它使用为 Java 虚拟机 (JVM) 的普通自适应动态优化收集的数据。 主要部分 JVM浏览器:显示了正在运行的 Java 应用程序及其 JVM,每个JVM实例称为一个JVM连接。JVM浏览器允许用户列出并连接到本地和远程运行的 Java 应用。它能够使用 Java 发现协议(JDP)自动地发现本地和远程运行的 Java 进程。 JMX 控制台:能够通过 JMX 接口管理并监控 JDK ,实时收集并显示其特征。它提供了实时集合、堆使用情况、CPU 负载以及其他通过 MBeans 暴露的和在 MBean 服务器中注册的信息,并可通过托管 Bean (MBean) 更改一些运行时属性。还可以创建在特定事件上触发的规则 (例如,如果应用程序的 CPU 占用率达到了 90%,则发送电子邮件)。 JFR