mbeans

Retrieve current server's provider URL at runtime on weblogic (non-deprecated way)

由 丶灬走出姿态 提交于 2019-12-13 07:11:34
问题 I have an Singleton Service deployed to a Weblogic cluster, i'd like to know the provider url (listen address and port) of the server on which the singleton service is deployed from the singleton itself (server side, not logs). I found this (old) article from Oracle, and wrote this method to construct the provider url. private static String getCurrentServerUrl() throws NamingException { weblogic.management.MBeanHome home = (weblogic.management.MBeanHome) new Environment().getInitialContext()

Container level Custom JXM MBean in Tomcat 7+

由 一个人想着一个人 提交于 2019-12-12 04:55:51
问题 I need to create a container level JMX MBean for tomcat servers to allow enterprise level monitoring of a few custom features. The examples I am finding online are focused on webapp level MBeans. I found a few examples for Tomcat 5, but it looks like a lot has changed since then. How can I register an MBean for an entire Tomcat instance? 回答1: Tomcat already have MBeans for monitoring stuff. You need to enable it via CATALINA_OPTS, just add: -Dcom.sun.management.jmxremote -Dcom.sun.management

Monitor Tomcats internal threadpool without using JMX in a Spring Boot App

由 空扰寡人 提交于 2019-12-11 16:38:58
问题 I have a simple Spring Boot web application set up for handling incoming http requests. Using the Java VisualVm I am able to see MBeans such as Tomcat's internal Threadpool. See the following screenshot: Screenshot of the Java VisualVM's MBean viewer I have successfully used JMX to monitor attributes such as "currentThreadCount" and "currentThreadsBusy". I set up Prometheus to access the monitored attributes as well. This works well. However, now I wanted to know if it is possible to access

Is it necessary to unregister an MBean from the Platform MBean Server?

由 落爺英雄遲暮 提交于 2019-12-10 13:09:12
问题 I've begun playing with MBeans for exposing some information about an app. Pretty much the totality of HOWTOs / Tutorials / Blog posts / Samples online teach you how to implement an MBean and register it with an MBean Server, but never mention (or only cursorily) unregistering the MBean from the server. I'm concerned about an MBean that needs to have a reference to a fairly heavyweight object in order to provide status information about that object. Does the Platform MBean Server maintain a

Java MXBean custom types

由 雨燕双飞 提交于 2019-12-09 13:42:03
问题 I am trying to create an MXBean with a custom attribute, but I get javax.management.NotCompliantMBeanException IJmsDestinationMBean.getAttributes has parameter or return type that cannot be translated into an open type I have read that MXBean attributes have to be OpenType compatible. How would I make my attribute work this way? All the classes below are in the same package. class JmsDestinationMBean implements IJmsDestinationMBean{ protected JmsDestinationAttributes attributes = new

Behavior MBeanServerForwarder

由 无人久伴 提交于 2019-12-08 10:44:58
问题 I have asked a question here but I did not get an answer. Howerver, I continue my search and I found something which could please my need : " MBeanServerForwarder ". I read the official JavaDoc but it is still not clear for me. So, does MBeanServerForwarder work as a proxy for a MBeanServer? ie: Can I use it to intercept MBeans registry, make modification in the ObjectName and forward it to the MBeanServer? Thanks in advance. 回答1: Yes, but it's not really necessary. You only need to implement

Insert MBean interceptor

由 五迷三道 提交于 2019-12-08 04:28:17
问题 I am working in a java project which implements MBeans and my need is to intercept MBean and change/add their properties before registry. Example : domainName:name=myMBean --> domainName:name=myMBean1,type=myType I found this link which presents how to apply an interceptor other then default interceptor but I have no idea to how do that in code. Thanks in advance. 回答1: Once you register the bean obviously it is too late. The easiest thing to do is to change how the registration is done. If

how to modify ThreadPoolTaskExecutor at runtime through jmx

由 风格不统一 提交于 2019-12-06 09:19:19
问题 I'm having trouble modifying my MBean properties through JConsole. I have a Threading bean which invoked with: public static void main(String[] args) throws Exception { // JMX new SimpleJmxAgent(); // spring executor context ApplicationContext ctx = new FileSystemXmlApplicationContext( "src/resources/ThreadContent.xml"); startThreads(ctx); } private static void startThreads(ApplicationContext ctx) { TaskExecutor tE = (TaskExecutor) ctx.getBean("TaskExecutor"); System.out.println("Starting

Detecting newly registered MBeans

由 扶醉桌前 提交于 2019-12-06 01:35:35
问题 I'm using the platform MBeans server in Java 1.6, running in an OSGi container. Using the MBeans for statistic counters and events mainly. The implementation of them are in one bundle, but they're instantiated in several other bundles. Every MBean autoregisters itself with the platform MBean server. The problem is that when I attach via JMX and query for MBeans, I only get the ones that are currently registered, and they wont be registered until they've been instantiated (either because

Managed Mbeans from ManagementFactory in JDK1.6 - NotCompliantMBeanException:

由 别来无恙 提交于 2019-12-05 23:14:54
I was using ManagementFactory to get ManagedMbeans in JDK1.5 and JBOSS 4.X. Now wanted to move my same code to JDK 1.6. The Mbean part breaks throwing the exception Caused by: javax.management.NotCompliantMBeanException: Class does not expose a management interface: java.lang.Object Caused by: java.lang.Exception: Unable to register platform (JVM) MBeans with JBoss MBeanServer Here's 2 approaches: Make JBossAS use the platform MBeanServer . Create your own proxies that implement the MXBean interfaces (and have the *MBean compliant name in the interface) and delegate the calls to the actual
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