jvm monitoring tools open source

1, Jdb (the Java debuger)JDB is used to debug core files and running Java processes in real-time, with rich commands to help you debug, and its functionality is very similar to the DBX in Sun Studio, but JDB is specifically designed for Java applications.Now it should be said that the daily development of the jdb is seldom used, because now the IDE has been packaged for us, such as the use of Eclipse Invoke program is very convenient, as long as in very specific circumstances may use this comman

The JDK itself provides many convenient JVM performance tuning monitoring tools, in addition to the integrated VISUALVM and Jconsole, there are JPS, Jstack, Jmap, Jhat, Jstat and other small tools, this blog hope to play a useful, Let's start to understand the common tools f

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Overview When the system bugs need to locate the problem, knowledge, experience is the key foundation, the data is the basis, the tool is the use of knowledge processing data means. The data mentioned here include: Run log, exception stack, GC log, thread snapshot (threaddump/javacore file), heap dump Snapshot (heapdump/hprof file), etc. Using the appropriate virtual machine monitoring and analysis tools c

In addition to the integrated VISUALVM and Jconsole, the JVM also has small tools such as JPS, Jstack, Jmap, Jhat, Jstat, etc.Problems that may be encountered in development OutOfMemoryError, Low memory Memory leaks Thread deadlock Lock contention (lock contention) The Java process consumes too much CPU These problems may be overlooked by many people in their daily development

to the information currently crawled to further analysisSecond, JVISUALVMThe JDK comes with a JVISUALVM tool, which is used to monitor the CPU, memory, thread, and so on of the Java Runtime program. and monitor Java programs in a graphical way with remote monitoring capabilities.Pre-preparation1, upload tomcat to the virtual machine, WebApps under the existence of Prefteach package2, monitoring the

In addition to the integrated VISUALVM and Jconsole, the JDK itself provides performance tuning monitoring tools such as JPS, Jstack, Jmap, Jhat, and Jstat.In Java development, we sometimes encounter the following problems:OutOfMemoryError, Low memoryMemory leaksThread deadlockLock contention (lock contention)The Java process consumes too much CPU......These problems may be overlooked by many people in thei

JVM Introduction to Monitoring ToolsVISUALVM is a visual tool that integrates multiple JDK command-line tools to provide you with powerful analytical capabilities. All of this is free! The command-line tools It includes are jps,jstat,jmap,jinfo,jstack,jconsole, which are consistent with the standard version of the JDK.