Java.exe CPU %

Hi,
We are running Resin Servlet runner on our web server. Our web site mostly serves out .XML documents using XSLT. The problem we periodically have is java.exe consumes 100% of the CPU until the web server stop responding. Restarting the servlet runner usually takes care of it, but sometimes on restart, java.exe will immediately starting chewing up memory to about 150 meg. We run with -Xms128m -Xmx256m memory parameters.
How can I tell what is eating up the CPU and memory? Any suggestions would be helpful.

with the minimum heap size set at 128 megs... As soon as you start java it will take about 150 megs... That fact that it's eating up CPU time is more diffcult.... Either it's really processing something that has to be done.. or you have some bad code spinning somewhere... or it's just not written right to begin with.

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  • Hi i wrote a java program for scanning a system for java.exe 's

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    i wrote a program which scans the system for java.exe 's and then it captures them in a linked list and then i
    iterate through it for "\\Java\\jdk1.5.0_08\\bin\\java.exe and my aim is to return true in case the linked list contains the string "\\Java\\jdk1.5.0_08\\bin\\java.exe" and stop scanning the system.
    If the linked list does not contain "Java\\jdk1.5.0_08\\bin\\java.exe" it should return false.
    But my problem is the program is continuing to scan the system even if the linked list has "\\Java\\jdk1.5.0_08\\bin\\java.exe"
    Any sort of help is appreciated.
    The code is as follows:
    package com.installanywhere.exper;
    import com.zerog.ia.api.pub.CustomCodeRule;
    import com.installanywhere.exper.SearchTool;
    * @author
    public class eFileTool extends CustomCodeRule {
         /* (non-Javadoc)
         * @see com.zerog.ia.api.pub.CustomCodeRule#evaluateRule()
         @Override
         public boolean evaluateRule() {
              // TODO Auto-generated method stub
              SearchTool searchtool=new SearchTool();
              boolean valueTocheckfor=false;
              valueTocheckfor=searchtool.find();
              String someothervalue=Boolean.toString(valueTocheckfor);
              if(someothervalue.equalsIgnoreCase("true")){
                   return true;
                   //System.exit()
              else if(someothervalue.equalsIgnoreCase("false")){
                   try {
                        Thread.sleep(5000);
                   } catch (InterruptedException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
              System.out.println(valueTocheckfor+"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx");
              return valueTocheckfor;
    The code of search tool is
    package com.installanywhere.exper;
    import java.io.*;
    import java.util.*;
    public class SearchTool
         * @param args
    static     boolean valuesToReturn=false;
    static     boolean anothervalueToRefer=false;
         public static void main(String[] args) {
              // TODO Auto-generated method stub
              SearchTool           t = new SearchTool();
              System.out.println("xxxxxxxxxxxxxxxxxxxx");
              boolean someArgument=t.find();
              System.out.println(someArgument+"iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii"+"");
                   public boolean find()
                        System.out.println("2222222222222222222");
                   boolean someThing=searchcomp("java.exe");
                   System.out.println(someThing+"inside the othere one");
                   return someThing;
              public boolean searchcomp(String file)
                   System.out.println("3333333333333333333333");
                   File[] drives=File.listRoots();
                   boolean valueIdentified=false;
                   for (int ctr=0;ctr<(drives.length-1);ctr++)
                        valueIdentified=search(drives[ctr],file);
                        System.out.println("4444444444444444444");
                   System.out.println(valueIdentified+"something i need to accomplish");
                   return valueIdentified;
                   public boolean search(File dir,String file)
                   File[] directories=dir.listFiles();
              System.out.println("55555555555555555555555");
                   if (directories == null)
                        System.out.println("666666666666666666666666");
                   return false;
                   for(int ctr=0;ctr<directories.length;ctr++)
                        if(directories[ctr].isDirectory())
                             System.out.println("77777777777777777777777777");
                             valuesToReturn=search(directories[ctr],file);
                             System.out.println(valuesToReturn+"india is great");
                        else
                             if(directories[ctr].getName().equals(file))
                                  String path = directories[ctr].getAbsolutePath().toString();
                                  System.out.println(path);
                                  List someList=new LinkedList();
                                  anothervalueToRefer=allPaths(path);     
                                  System.out.println(anothervalueToRefer+"god damn it");
                                       //System.out.println(anothervalueToRefer+"let me seeeeeeeeeeeeeeeeeee");                                        
                                  return anothervalueToRefer;
                   return valuesToReturn;
                   public boolean allPaths(String allPath)
                        List l=new LinkedList();
                        String somepath=allPath;
                        l.add(somepath);
                        //return l;
    /*if(l.contains("C:\\Program Files\\Java\\jdk1.5.0_08\\bin\\java.exe")){
                             System.out.println("yepeeeeeeeeeeeeee");
                             //System.exit(0);
    else{
         System.out.println(" the face");
                        ListIterator li = l.listIterator();
                        System.out.println("inside the method of all paths");
                        if(li.hasNext())
                             if(li.next().toString().contains("\\Java\\jdk1.5.0_08\\bin\\java.exe"))
                             System.err.println(somepath+"this is the path i wanted to resolve correctly");                         
                             return true;
                             else{
                                  System.out.println("trueeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee");
                                       return false;
                        else {
                                  return false;
         }

    A good place to ask advice about web development is at the MozillaZine "Web Development/Standards Evangelism" forum.
    *http://forums.mozillazine.org/viewforum.php?f=25
    The helpers at that forum are more knowledgeable about web development issues.<br>
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