jconsole

问题 I have written a program to print number from 1 to 200 using 2 threads. Now I want to monitor this program using JConsole. Basically I want to learn how to use JConsole for monitoring an application. I searched google but couldn't find something useful. How I can achieve this? When I started jconsole.exe in bin folder. It asks for hostname and port number. Here in my case, there is none, I guess. Can somebody guide. 回答1: You need to enable JMX by adding the following JVM arguments : -Dcom.sun

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

问题 I am currently using jconsole to monitor performance metrics of my Java application and would like to script this data acquisition . Is there a way to retrieve these VM metrics (heap memory usage, thread count, CPU usage etc.) to STDOUT ? The data in top -p PID -b -n 1 doesn't quite cut it. Thanks 回答1: jconsole just provides a wrapper around the JMX MBeans that are in the platform MBeanServer. You can write a program to connect to your VM using the Attach API which would then query the MBeans

问题 I'm trying to open a JMX connection to java application running on a remote machine. The application JVM is configured with the following options: com.sun.management.jmxremote com.sun.management.jmxremote.port=1088 com.sun.management.jmxremote.authenticate=false com.sun.management.jmxremote.ssl=false I'm able to connect using localhost:1088 using jconsole or jvisualvm. But I'm not able to connect using xxx.xxx.xxx.xxx:1088 from a remote machine. There is no firewall between the servers, or on

问题 I am writing very simple console application in Java. The problem is that I need to ouput cyrillic and estonian non-utf8 symbols to console, but in Windows I get bunch of strange symbols and in MacOsX I get only ???? instead of something more readable. How Can I achieve my aim? --UPDATE 1-- locale gave me: LANG= LC_COLLATE="C" LC_CTYPE="UTF-8" LC_MESSAGES="C" LC_MONETARY="C" LC_NUMERIC="C" LC_TIME="C" LC_ALL= Seems I am stuck with that UTF-8 thing %) Strange idea: Is there any way to get a

问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 7 years ago . I want to know how to make a very simple java button that works in console (i'm using crimson editor to do java in class) Im looking for something that when you click it it starts a game. 回答1: Well in Java you

问题 I had a look at existing questions on getting the thread id like java-thread-id-and-stack-trace . But I'm not able to figure out something that seemed simple. I want to make a JSP tool to stop a thread in Java. I know it's a bad idea in general but we need it as we can't use JConsole in our environment cause some hardening of JBoss. My questions are, take a sample jstack output: Event Batch Processing (Spring UAA/1.0.2)" daemon prio=10 tid=0x0000000041e27800 nid=0x363b waiting on condition

问题 activemq : apache-activemq-5.14.0 jconsole using jdk1.7 I have started the activemq which comes with the jetty server. Minor change to make the jmx enable is by making change in activemq.xml managementContext createConnector="true" --- default is false when i start i am seeing the message JMX consoles can connect to service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi So I start Jconsole use remote process and use service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi with no password : it says

问题 I am trying to start JConsole from the command line using its Main class. I extracted the contents of jconsole.jar and in the MANIFEST.MF i can see Main-Class: sun.tools.jconsole.JConsole So i am trying to run the following command: java sun.tools.jconsole.JConsole But i am getting an exception of: Error: Could not find or load main class sun.tools.jconsole.JConsole Can anyone spot what am i missing here? 回答1: Try to launch like this java -jar jconsole.jar sun.tools.jconsole.JConsole 来源：

问题 My MBeans are annotated using Spring annotations as follows: @ManagedAttribute(description = "returns the name") public String getName() { return name; } Now, whenever I open a JMX Console (be it VisualVM or JConsole), I can see the attributes of my beans in the Attributes tab, but I can also see the getName() method exposed in the Operations tab. Is there a way in which I can only see the attribute in the Attribute tab (i.e. hide it from the Operations tab)? 回答1: