Tomcat Issue with HPUX

HI All
I and running tomcat on HPUX machine. The problem is that on HP machine the maximum thread per process allowed is 65 ( default), so i configured max thread count in server.xml to 60. I used JMeter to check the behavior when there is enough load on tomcat. What i have observed is that even though i configured its maxthread count not to exceed 60 it is reaching 65 and as soon as it goes beyond 65 tomcat throws OutOfMemoryError. After this the thread are killed ( probably by the OS) and then the thread count comes back to around 27 but tomcat does not process any new request any more. What i was expecting is that once the threads are killed and thread count comes back to 27 it should again start processing new request.
One option is that to increase the max thread per process limit of HP to high value, but administrators are not very convinced with this idea
Any pointers on this issue.
Thanks and Regards
Pankaj Tiwari

Read the documentation:
"maxThreads This attribute specifies the maximum number of request-processing threads to be created by this connector"
That means that there also are other threads, e.g. the gc thread, tomcat internal threads and so on. Reduce you number from 60 to something lower.
How would tomcat be able to handle new requests if it was a tomcat internal thread that got killed?
Kaj
Ps. Please ask tomcat specific questions in a tomcat forum.

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Hi,
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John
http://john-goodwin.blogspot.com/

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\r\n at
org.apache.jk.common.SocketConnection.runIt(Channe lSocket.java:866)\r\n at
org.apache.tomcat.util.threads.ThreadPool$ControlR unnable.run(ThreadPool.jav
a:684)\r\n at java.lang.Thread.run(Thread.java:534)\r\n
Upon looking on the logger screen of the server the following is displayed
when VPN Services is selected in iManager: Task 514 ....
java.lang.incompatibleclasschangeerror
I reapplied the VPN schema extensions also uninstalled and installed the
VPN.NPM from BroderManager v3.9 SP1 plus restarted Tomcat - same error
occurs. Nothing shows up in the forums or the Novell site regarding this
error.
Does anyone know what might cause this and how it can be rectified. Until we
correct this we cannot configure VPN Services at all.
Cheers,
Dale.
Kind Regards,
Dale Bentley
Network Help

Craig,
Thanks for the feedback ... much appreciated.
Yes the standalone version works fine and we can configure VPN. However that server version we would like to run still throws that error - not sure what I can do to fix that one.
Regards,
Dale.
Kind Regards,
Dale Bentley
Network Help
>>> Craig Johnson<[email protected]> 29/08/2008 4:03 pm >>>
In article <[email protected]>, Dale wrote:
> Does anyone know what might cause this and how it can be rectified. Until we
> correct this we cannot configure VPN Services at all.
>
I hate those sorts of errors.... Gonzalo told me java errors are easy to
figure out, but not for me. I usually find the clue in the first line or two,
while the rest of the error message is just a reaction to the first problem.
That said, what I THINK is happening is that you are either missing a needed
java bit, or are using an incorrect version. (When you track down the fix,
they usually end up being simple, like copying a file to some location, or a
subdirectory of files).
I would try downloading and setting up iManager 2.7 mobile on a PC, and
installing the BM 3.9sp1 iMan 2.7 plugins. Bypass any tomcat issues on the
server that way. If it still fails, then there may be some NDS issue, but
let's start with a different iManager installation.
Craig Johnson
Novell Support Connection SysOp
*** For a current patch list, tips, handy files and books on
BorderManager, go to http://www.craigjconsulting.com ***

Flex file upload issue with large image files

     Hello, I have created a sample flex application to upload an image and also created java servlet to upload and save image and deployed in local tomcat server. I am testing the application in LAN. I am able to upload small as well as large image file(1Mb) from some PCs but in some other PCs I am getting IOError while uploading large image files however it is working fine for small images. Image uploading is hanging after 10%-20% and throwing IOError. *Surprizgly it is working Ok with XP systems and causeing issues with Windows7 systems*.
Plz give me any idea to get a solution.
In Tomcat server side it is giving following error:
request: org.apache.catalina.connector.RequestFacade@c19694
org.apache.commons.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. Stream ended unexpectedly
        at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:371)
        at org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.ja va:126)
        at flex.servlets.UploadImage.doPost(UploadImage.java:47)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j ava:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
        at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:877)
        at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProto col.java:594)
        at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1675)
        at java.lang.Thread.run(Thread.java:722)
Caused by: org.apache.commons.fileupload.MultipartStream$MalformedStreamException: Stream ended unexpectedly
        at org.apache.commons.fileupload.MultipartStream$ItemInputStream.makeAvailable(MultipartStre am.java:982)
        at org.apache.commons.fileupload.MultipartStream$ItemInputStream.read(MultipartStream.java:8 86)
        at java.io.InputStream.read(InputStream.java:101)
        at org.apache.commons.fileupload.util.Streams.copy(Streams.java:96)
        at org.apache.commons.fileupload.util.Streams.copy(Streams.java:66)
        at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:366)
UploadImage.java:
package flex.servlets;
import java.io.*;
import java.sql.*;
import java.util.*;
import java.text.*;
import java.util.regex.*;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.*;
import sun.reflect.ReflectionFactory.GetReflectionFactoryAction;
import javax.servlet.*;
import javax.servlet.http.*;
public class UploadImage extends HttpServlet{
         * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse
         *      response)
        protected void doGet(HttpServletRequest request,
                        HttpServletResponse response) throws ServletException, IOException {
                // TODO Auto-generated method stub
                doPost(request, response);
        public void doPost(HttpServletRequest request,
                        HttpServletResponse response)
        throws ServletException, IOException {
                PrintWriter out = response.getWriter();
                boolean isMultipart = ServletFileUpload.isMultipartContent(
                                request);
                System.out.println("request: "+request);
                if (!isMultipart) {
                        System.out.println("File Not Uploaded");
                } else {
                        FileItemFactory factory = new DiskFileItemFactory();
                        ServletFileUpload upload = new ServletFileUpload(factory);
                        List items = null;
                        try {
                                items = upload.parseRequest(request);
                                System.out.println("items: "+items);
                        } catch (FileUploadException e) {
                                e.printStackTrace();
                        Iterator itr = items.iterator();
                        while (itr.hasNext()) {
                                FileItem item = (FileItem) itr.next();
                                if (item.isFormField()){
                                        String name = item.getFieldName();
                                        System.out.println("name: "+name);
                                        String value = item.getString();
                                        System.out.println("value: "+value);
                                } else {
                                        try {
                                                String itemName = item.getName();
                                                Random generator = new Random();
                                                int r = Math.abs(generator.nextInt());
                                                String reg = "[.*]";
                                                String replacingtext = "";
                                                System.out.println("Text before replacing is:-" +
                                                                itemName);
                                                Pattern pattern = Pattern.compile(reg);
                                                Matcher matcher = pattern.matcher(itemName);
                                                StringBuffer buffer = new StringBuffer();
                                                while (matcher.find()) {
                                                        matcher.appendReplacement(buffer, replacingtext);
                                                int IndexOf = itemName.indexOf(".");
                                                String domainName = itemName.substring(IndexOf);
                                                System.out.println("domainName: "+domainName);
                                                String finalimage = buffer.toString()+"_"+r+domainName;
                                                System.out.println("Final Image==="+finalimage);
                                                File savedFile = new File(getServletContext().getRealPath("assets/images/")+"/LowesFloorPlan.png");
                                                //File savedFile = new File("D:/apache-tomcat-6.0.35/webapps/ROOT/example/"+"\\test.jpeg");
                                                item.write(savedFile);
                                                out.println("<html>");
                                                out.println("<body>");
                                                out.println("<table><tr><td>");
                                                out.println("");
                                                out.println("</td></tr></table>");
                                                try {
                                                        out.println("image inserted successfully");
                                                        out.println("</body>");
                                                        out.println("</html>");
                                                } catch (Exception e) {
                                                        System.out.println(e.getMessage());
                                                } finally {
                                        } catch (Exception e) {
                                                e.printStackTrace();

It is only coming in Windows 7 systems and the root of this problem is SSL certificate.
Workaround for this:
Open application in IE and click on certificate error link at address bar . Click install certificate and you are done..
happy programming.
Thanks
DevSachin

Enquiry about EM's timezone (working with HPUX EAT-8)

Dear all,
II have encountered an issue of EM's timezone error.
One of my customers is using our EM (12.1.0.2) installed on Linux 5. It is used to monitor a HPUX target. The HPUX’s time zone has been set to “EAT-8”. I understand that the time zone of DB, OS and EM must be matched with the target. So I have set the time zone of DB and OS to “GMT-8” which should match with “EAT-8”. However when I do the software library update in EM, there is error of “Time zone region not found”.. I have double checked the time of DB and OS, and they matched perfectly. If i ignored this error, when I deploy the EM host agent, there is also warning about the timezone.
May I know if anyone knows how to set the timezone when EM working with HPUX EAT-8?
Thanks.
Best Regards,
Bess Chung

To view a list of the time zones you can use, access the supportedtzs.lst file present in the<AGENT_HOME>/sysman/admin directory of the central agent.
For agent deployment refer to the timezone pre-req from this url
http://docs.oracle.com/cd/E24628_01/install.121/e22624/install_agent.htm#CACJEFJI

Tomcat Issue with HPUX

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