![]() ![]() JavaDoc:, search for the class, she will do the trick. This will give an immense discussion I know, but anyways, there's a very good API that I already used in my projects and it's stable enough ( it's OSS so you still need to stress test every version you use before really trusting the API): You can do everything else, even fork and join child processes (those were an horrible way of multitasking when the world didn't know about threads or pthreads, what a hell! what's going in on with Java?! :). But because Java actually runs in a VM, for some absurd reason that I can't really figure out after more then 15 years working the JDK, is why it isn't possible to see things outside the JVM space, it's really ridiculous with you think about it. I know, this seems horrible, and non portable, and even poorly implemented, I agree. The following sample program in Java shows the use of Runtime class to get a list of all. Or, if you are running under Linux, you can query the /proc directory. In Java, you can use the Runtime class to execute any linux command. You can use and "pgrep" to get the process id (PID) with something like: pgrep -fl java | awk. If you want to monitor the thread count, simply use watch: watch ps -o thcount .Thus ps aliases nlwp to thcount, which means that. To list running processes in Linux using the pgrep command, you can simply execute the following command: This command will list all running processes along. ![]() If you want to display all the processes for the current shell, run the ps command with no options at all. Where nlwp stands for Number of Light Weight Processes (threads). Listing all the processes in the current shell. config/zookeeper.propertiesĢ8807 root .RunNiFi runĪn alternative on windows to list all processes is: WMIC path win32_process where "Caption='java.exe'" get ProcessId,Commandlineīut that is going to need some parsing to make it more legible. To get the number of threads for a given pid: ps -o nlwp .Results look something like: PID USER CMDġ1251 userb .quorum.QuorumPeerMain. This is a bit rough still but removes everything except: PID, User, java-class/jar, args. Using the ps|grep is what I ended up doing but the class path for some java apps can be extremely long which makes results illegible so I used sed to remove it. But even if it did it only shows processes under the current user which doesn't work in my case. Jps & jcmd wasn't showing me any results when I tried it using using openjdk-1.8 on redhat linux. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |