process-management

On Windows I can do: HANDLE hCurrentProcess = GetCurrentProcess(); SetPriorityClass(hCurrentProcess, ABOVE_NORMAL_PRIORITY_CLASS); How can I do the same thing on *nix? Try: #include <sys/time.h> #include <sys/resource.h> int main(){ setpriority(PRIO_PROCESS, 0, -20); } Note that you must be running as superuser for this to work. (for more info, type 'man setpriority' at a prompt.) If doing something like this under unix your want to (as root) chmod you task and set the s bit. Then you can change who you are running as, what your priority is, your thread scheduling, etc. at run time. It is

When Mac OS X goes to sleep, due to closing a laptop or selecting "Sleep" from the Apple menu, how does it suspend an executing process? I suppose non-windowed processes are simply suspended at an arbitrary point of execution. Is that also true for Cocoa apps, or does the OS wait until control returns to the run loop dispatcher, and goes to sleep in a "known" location? Does any modern OS do that, or is it usually safe enough to simply suspend an app no matter what it is doing? I'm curious, because allowing sleep to occur at any moment means, from the app's perspective, the system clock could

I want to kill the particular Java process in Windows, like in Linux ( ps -aux to get processid and then kill processid to kill the process). You can use the jps utility that is included in the JRE to find the process id of a Java process. The output will show you the name of the executable JAR file or the name of the main class. Then use the Windows task manager to terminate the process. If you want to do it on the command line, use TASKKILL /PID %PID% You can also find the PID of a java program with the task manager. You enable the PID and Command Line columns View -> Select Columns and are

When launching a process from Java, both stderr and stdout can block on output if I don't read from the pipes. Currently I have a thread that pro-actively reads from one and the main thread blocks on the other. Is there an easy way to join the two streams or otherwise cause the subprocess to continue while not losing the data in stderr? Set the redirectErrorStream property on ProcessBuilder to send stderr output to stdout: ProcessBuilder builder = new ProcessBuilder(command); builder.redirectErrorStream(true); You should then create a thread to deal with the process stream, something like the

Previously I have had success implementing PM2, but not currently. My node app does run just fine if I start it manually, but nothing I do gets it to run via PM2, even though PM2 appears to be starting it up. Here's what I mean: If I run pm2 start server/index.js, the response in the terminal reads: $ pm2 start server/index.js [PM2] Spawning PM2 daemon with pm2_home=c:\pm2_system\.pm2 [PM2] PM2 Successfully daemonized [PM2] Starting D:\Program Files\nodeApps\service-management-api\server\index.js in fork_mode (1 instance) [PM2] Done.* Then the terminal prints out a table with App info. It

I've used pm2 for my Node.js script and I love it. Now I have a python script which collect streaming data on EC2. Sometimes the script bombs out and I would like a process manager to restart itself like pm2. Is there something the same as pm2 for python? I've been searching around and couldn't find anything. Here's my error File "/usr/local/lib/python2.7/dist-packages/tweepy/streaming.py", line 430, in filter self._start(async) File "/usr/local/lib/python2.7/dist-packages/tweepy/streaming.py", line 346, in _start self._run() File "/usr/local/lib/python2.7/dist-packages/tweepy/streaming.py",

So I'm in the process of getting GIT sold at work. First thing I need is to convince everyone that GIT is better at what they're already used to doing. We currently use Perforce. Anybody else go through a similar sale? Any good links/advice? One of the big wins is that we can work with it disconnected from the network. Another win IMO is the way adds/checkouts are handled. More points are welcome! Also we have about 10-20 devs total. The Perl 5 interpreter source code is currently going through the throes of converting from Perforce to git. Maybe Sam Vilain’s git-p4raw importer is of interest.

I launch a child process in Java as follows: final String[] cmd = {"<childProcessName>"}; Process process = Runtime.getRuntime().exec(cmd); It now runs in the background. All good and fine. If my program now crashes (it is still in dev :-)) the child process still seems to hang around. How can I make it automatically end when the parent Java process dies? If it helps, I'm using Mac OS X 10.5 VonC As you said, addShutdownHook is the way to go. BUT: There's no real guarantee that your shutdown hooks are executed if the program terminates. Someone could kill the Java process and in that case your