I am exploring the Java Mission Control 8.3 version. In the tutorial to which I am referring, they are using an older version of Java Mission Control 7.X. In the tutorial, they show a “Code Flow” tab that contains a “Hot Methods” section. I am unable to find the “Code Flow” tab or the “HotCode”. In Java Mission Control 8,
Tag: jmc
Java Flight Recorder – Continuous rolling recording
Question How to get a rolling recording into disk, with a maximum age? Context When something goes bad in my server, I want to be able to dump the profiling information of the hours prior and analyse it, to know what went wrong. As I don’t know when things will go bad, the JDK should be continuously saving the events
Java Flight Recorder – find file descriptor leak
M Java application probably has a file descriptor leak, since I’m getting a Too many open files exception. I’m running my application with JFR, and when I inspect File I/O I barely see any I/O count. Is it possible to use JFR for finding code which open files but not closes them? Answer No, JFR can’t track file handles. You