jconsole

Wildfly 10 Final indefinitely creating ActiveMQ-client-global-threads

由 ＊爱你＆永不变心＊ 提交于 2019-12-10 21:25:16
问题 I have a Wildfly AS setup for JMS, I;m monitoring it with Jconsole and have noticed that before I even create a session on my Consumer or Producer the thread count is steadily increasing, I was previously using Wildfly 9 final for the same purpose, it's thread usage was steady even during use, but it had a memory leak which prompted me to upgrade. In Jconsole I can see: Thread-2(ActiveMQ-client-global-threads-3258368) Thread-4(ActiveMQ-client-global-threads-3258368) Thread-5(ActiveMQ-client

Monitoring resource use in Jboss in JMeter performance test

由 流过昼夜 提交于 2019-12-10 18:15:22
问题 We are performing some JMeter tests on a JBoss 4.0.5 deployed web app. We want to integrate the resource usage on the application on the server (memory, threads, etc) with the JMeter response time results. We have found a tutorial for doing that with Tomcat: http://www.informit.com/guides/content.aspx?g=java&seqNum=273 and we want to know if it could be done with JBoss. One alternative is doing resource usage monitoring by hand, using jconsole or something similar, but we prefer something

How to make custom Java/JavaFX console?

由 浪尽此生 提交于 2019-12-07 15:24:46
问题 It's necessary to make a custom console. I have the following code: public class Console extends OutputStream{ private Console(ResourceBundle resourceBundle) throws IOException { FXMLLoader loader = new FXMLLoader(this.getClass().getResource("Console.fxml"), resourceBundle); controller = loader.getController(); Scene scene = new Scene((Parent) loader.load()); stage = new Stage(); stage.setScene(scene); show(); } @Override public void write(int b) throws IOException { controller.append(b); }

How do I use Jconsole to connect to EC2?

由 泪湿孤枕 提交于 2019-12-07 03:19:26
问题 I am running Jconsole on my macbook and trying to connect to a linux terminal on ec2 that does not have graphics(only command line access). I run my code like this: java -jar program.jar -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=9005 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.remote.ssl=false I read here that there was a problem with accessing via EC2(after I had problems connecting) and the solution seemed to be ' java.rmi.server.hostname

jconsole观察分析Java程序的运行，进行排错调优

由 假如想象 提交于 2019-12-06 16:07:33
jsconsole非授权远程连接 -Djava.rmi.server.hostname=172.16.10.218 -Dcom.sun.management.jmxremote.port=8999 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false linux运行定时任务程序 报错如下： Exception thrown by the agent : java.net.MalformedURLException: Local host name unknown: java.net.UnknownHostException: =mail.06taobao.com 解决：hostname =wangfw-smarttrip-dev-8.novalocal 没有对应一个ip地址，在/etc/hosts中添加127.0.0.1 =wangfw-smarttrip-dev-8.novalocal 授权连接可以看看这篇文章: http://www.linuxidc.com/Linux/2015-02/113420.htm 性能分析 下面说说如何分析，如何使用这六个标签 概述: Displays overview information about the Java

Jconsole cannot connect

由 喜夏-厌秋 提交于 2019-12-05 17:34:57
问题 I am using VNC to connect to a server. I am able to VNC into the server, and open Jconsole, but cannot get it to connect to my process whether I include the PID or try connecting using the GUI. The weird thing is all the processes show up in the GUI. See below. I get this when I try connecting: Followed by Is there something I need to do in order to get Jconsole working locally on a Linux server over VNC? 回答1: Fix found here: You need to pass to the VM: -Dcom.sun.management.jmxremote -Dcom

Strategies for the diagnosis of Java memory issues

由 回眸只為那壹抹淺笑 提交于 2019-12-05 01:11:14
问题 I've been tasked with debugging a Java (J2SE) application which after some period of activity begins to throw OutOfMemory exceptions. I am new to Java, but have programming experience. I'm interested in getting your opinions on what a good approach to diagnosing a problem like this might be? This far I've employed JConsole to get a picture of what's going on. I have a hunch that there are object which are not being released properly and therefor not being cleaned up during garbage collection.

jps process information unavailable - jconsole and jvisualvm not working

由 谁都会走 提交于 2019-12-04 17:04:14
问题 After a windows update, my jps, jconsole et jvisualvm are not working anymore. Jps gives me the process ids, but it tells me process information unavailable And I'm unable to connect to those processes with jvisualvm as I used to. I'm running the 1.6.0_22 jre. I already had the problem in the past, tries this trick, and it worked. But this time, bad luck, it does not help. Edit : I found a solution : in my temp folder, I did destroy the hsperfdata_<username> folder. Apparently there was an

Disabling Local JMX Connections on JVM

由 Deadly 提交于 2019-12-04 04:35:11
We are writing a java program which keeps a password in memory. Unfortunately, the user can easily use jconsole or jmap to create a heap dump file and open it to find the password. I think jconsole connects jvm using local sockets. I wanna know, is there any way to disable jmx even for local users? Is there any way to totally disable heap dumps? As the user have access to the memory segment, this is possible to access the password anyway. However, I wanna disable standards ways of doing that to make the action as expensive as possible. Finally, I found a solution for disabling jconsole

Is enabling JConsole remote monitoring affect system performance in production?

由 我是研究僧i 提交于 2019-12-04 03:54:03
Oracle/Sun says its fine as long as you don't run it locally on production box? http://download.oracle.com/javase/1.5.0/docs/guide/management/jconsole.html Note: Using jconsole to monitor a local application is useful for development and prototyping, but is not recommended for production environments, because jconsole itself consumes significant system resources. Remote monitoring is recommended to isolate the jconsole application from the platform being monitored. Have you ever enabled it in a production environment and experienced any performance impacts? Moe Matar Although it is highly not
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