Java Thread is terminating

[Hara Prasad Pradhan]

Hi,

Below code is running in background in unix server to archive the logs . Two shell scripts are called within the program to do so:

public class LogArchive extends Thread{
public static Logger logger = Logger.getLogger("LogArchiveLog");
        public void run()
        {
          try
            {
                  String workingDir = System.getProperty("user.dir");
                  while(true)
                  {
                        Runtime.getRuntime().exec(workingDir+"/archiving_receivinglogs.sh");
                        Runtime.getRuntime().exec(workingDir+"/Purging_Logs.sh");
                        Thread.sleep(900000);
                  }
            }
          catch (InterruptedException e) {
                        logger.info("Error during running of LogArchive java Class");
                        logger.log(Level.INFO, "", e);
                        e.printStackTrace();
            }
      catch (IOException e) {
                        logger.info("Error during running of LogArchive java Class");
                        logger.log(Level.INFO, "", e);
                        e.printStackTrace();
            }
    }
        public static void main(String[] args){
                try
                  {
                        FileHandler handler = new FileHandler("logarchive.log",1000000,1,true);
                        logger.addHandler(handler);
                        SimpleFormatter formatter = new SimpleFormatter();
                        handler.setFormatter(formatter);
                        logger.info("Error generated during the java program run are dispalyed below:");
                        LogArchive lg = new LogArchive();
                        lg.start();
                  }
                 catch(Exception e)
                 {
                        logger.info("Error during running of LogArchive java Class");
                        logger.log(Level.INFO, "", e);

                 }
        }
}

Above code is is executing properly, but terminates after 3-4 hrs. Kindly help me out..

[Dave Tolls]

And what happens when it terminates?
Any errors?

[Hara Prasad Pradhan]

It terminates without showing any error in log file logarchive.log.
As I am running this in unix environment, is it related to any resource utilisation issue or any OS level problem??
I dont think its a heap memory issue...

[Campbell Ritchie]

Welcome to the Ranch

I added code tags to your post. Always use the tags: doesn't it look better now

[Richard Tookey]

Your code

                       Runtime.getRuntime().exec(workingDir+"/archiving_receivinglogs.sh");  
                        Runtime.getRuntime().exec(workingDir+"/Purging_Logs.sh");  
                        Thread.sleep(900000);  

is very badly flawed since it throws away all the diagnostic information available from the process return codee, stdout and stderr.

You need to read all the sections of http://www.javaworld.com/article/2071275/core-java/when-runtime-exec---won-t.html and implement ALL the recommendations. You might then be in a position to diagnose the problem yourself.

P.S. The sleep() should not be necessary if you wait for the processes to terminate.