jconsole

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) 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. Nowadays you can use jvisualvm tool to connect to your remote JVM through JMX and

We are having problem connecting to our Java applications running in Amazon's EC2 cluster. We definitely have allowed both the "JMX port" (which is usually the RMI registry port) and the server port (which does most of the work) to the security-group for the instances in question. Jconsole connects but seems to hang and never show any information. We are running our java with something like the following: java -server -jar foo.jar other parameters here > java.log 2>&1 We have tried: Telnets to the ports connect but no information is displayed. We can run jconsole on the instance itself using

My specific question has to do with JMX as used in JDK 1.6: if I am running a Java process using JRE 1.6 with com.sun.management.jmxremote in the command line, does Java pick a default port for remote JMX connections? Backstory: I am currently trying to develop a procedure to give to a customer that will enable them to connect to one of our processes via JMX from a remote machine. The goal is to facillitate their remote debugging of a situation occurring on a real-time display console. Because of their service level agreement, they are strongly motivated to capture as much data as possible and

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 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. Or you can expose the platform MBeanServer over RMI and query the MBeans that way. See the java.lang

I should connect to a java program on localhost jvm using JMX. In other words I want to develop a JMX client to config a java program on localhost. Don't recommend using JConsole! JConsole is not suitable because it is general JMX client and have negative effect on main program performance. Samples on oracle site use RMIConnector and host:port params but I don't know: where should set jmx port? JConsole have an option to connect to java processes by PID. But I don't find any method in JMX api that have PID as input param. We use something like the following to programatically connect to our

I am trying to connect to a remote tomcat JMX instance using jConsole. But can't connect successfully. Any Idea? I included the following option in remote tomcat catalina.sh : JAVA_OPTS="$JAVA_OPTS -Dcom.sun.management.jmxremote \ -Dcom.sun.management.jmxremote.port=9004 \ -Dcom.sun.management.jmxremote.ssl=false \ -Dcom.sun.management.jmxremote.authenticate=false" waxwing I had a similar, if not the same, problem. I could connect to the JMX server if I started jconsole locally on the machine. It appears the RMI server was not listening on the correct ip. So, as was suggested in this related