Servlet cluster problem

I am having trouble with a wls6.1 cluster. I am trying write a pdf out
          via a servlet. When I run the following code with the cluster turned
          off I have no problems. If I turn it on the servlet is returning no
          data. I am including the servlet and the stack trace in case someone
          can help. GenericFileObject.getTheFile returns a byte array.
          Jeff
          public void service(HttpServletRequest request, HttpServletResponse
          response) throws ServletException, IOException {
          DataOutputStream activityreportOut = new
          DataOutputStream(response.getOutputStream());
                    try {
                    HttpSession session=request.getSession(true);
                    response.setContentType("application/pdf");
               String fileid = request.getParameter("fileid");
          String type=request.getParameter("type");
                    byte[] buffer;
               ClientFacadeHome cfhome = (ClientFacadeHome)
               EJBHomeFactory.getInstance().getBeanHome(Constants.CLASS_CLIENT_FACADE,
          Constants.JNDI_CLIENT_FACADE);
               ClientFacade cf= cfhome.create();
                    GenericFileObject file =(GenericFileObject)
          cf.getFile(fileid,type);
               buffer =(byte[]) file.getThefile();
               activityreportOut.write(buffer);
          catch (Exception e){
               e.printStackTrace();
          activityreportOut.flush();
          java.io.IOException: Broken pipe
          at java.net.SocketOutputStream.socketWrite(Native Method)
          at java.net.SocketOutputStream.write(Unknown Source)
          at weblogic.servlet.internal.ChunkUtils.writeChunkTransfer(ChunkUtils.java:189)
          at weblogic.servlet.internal.ChunkUtils.writeChunks(ChunkUtils.java:165)
          at weblogic.servlet.internal.ChunkOutput.flush(ChunkOutput.java:248)
          at weblogic.servlet.internal.ChunkOutput.checkForFlush(ChunkOutput.java:306)
          at weblogic.servlet.internal.ChunkOutput.write(ChunkOutput.java:197)
          at weblogic.servlet.internal.ChunkOutputWrapper.write(ChunkOutputWrapper.java:121)
          at weblogic.servlet.internal.ServletOutputStreamImpl.write(ServletOutputStreamImpl.java:155)
          at java.io.DataOutputStream.write(Unknown Source)
          at java.io.FilterOutputStream.write(Unknown Source)
          at com.bi.micardis.security.clientaction.ActivityAndScriptServlet.service(ActivityAndScriptServlet.java:41)
          at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
          at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:265)
          at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
          at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2456)
          at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2039)
          at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
          at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)

          "Subir Das" <[email protected]> wrote:
          >So, Applet#1 will always talk to the servlet hosted by WLInstance#1 and
          >Applet#2
          >will always talk to the servlet hosted by WLInstance#2.
          This statement is not entirely true.
          Suppose WLInstance#1 were to be brought down (for whatever reason), Applet#1 will
          then talk to servlet hosted by WLInstance#2.
          Server pinning could be modified by different load balancing algorithms, configurable
          via containers (or hardware).
          So don't count on which servlet instance your applet is going to be served by.
          Instead consider to give a second look into the design of the servlet data structure
          (object):
          1.Read from data store, if it has been persisted.
          2.If the data is client related then consider sticking the data into session, which
          would then replicate to other WL instances.
          3.Stateless EJB in a cluster ? Don' know much about this(yet).
          My 2 cents..Good luck.
          Rama

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Hi!
I have two Ironport C160 in cluster mode, tonight one of them has stopped working, and I can not access this on, but it responds to ping.
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Well, "queuereset" is not a valid command, what you mean is "resetqueue", which I would strongly not recomment to use without having a very good reason.Because this command removes all messages from the workqueue, delivery queues, and quarantines. There are usually less destructive ways to fix a cluster problem.
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SPF is not supported SCVMM cluster problems, when repairing ?

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See:
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          Hi,
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          Related documentation: Using Weblogic server clusters, version 1.1, October 2000, pg 3-19.


Hi,
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          =========================
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          ================
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          The one you are describing can be done multiple ways, none of which I recommend unless you have some outstanding reason for needing this
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          Cluster (EJBs)
          Internet ---> firewall and/or hardware load-balancer ---> Web (Proxy) Servers ---> firewall ----> WLS Cluster (Servlets/JSPs) ---> firewall (or
          not) ---> WebLogic Cluster (EJBs)
          Hope this clarifies the issues,
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          Ernest Remanjon wrote:
          > Hi,
          >
          > WLS 5.1 have a firewall restriction : no firewall between the servlet cluster and the object cluster. Is this restristion stay in WLS 6.0 ?
          >
          > Thanks.
          >
          > Ernest Remanjon
          >
          > Related documentation: Using Weblogic server clusters, version 1.1, October 2000, pg 3-19.

Weblogic 6.0 Cluster Problem while reading requests

Hi,
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Hi,
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          I am using weblogic 6.0 with SP2. I do have cluster setup. Problem occurs when accessing particular servlet using proxy cluster.
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Hi guys,
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4/12/07 20:12:35 Compressor[242] Could not find image named 'MPEG1-Output'.
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4/12/07 20:17:55 Batch Monitor[190] * CDOClient::connect2: CException [NSException raised by 'NSPortTimeoutException', reason = '[NSPortCoder sendBeforeTime:sendReplyPort:] timed out (218488705.075513 218488675.075652) 1'], server [tcp://10.0.1.199:49167]
I tried Stopping and then Restart Sharing and I noticed the follwoing entries in my log :
4/12/07 20:23:26 compressord[210] can't refresh cache from file "/Library/Application Support/Apple Qmaster/qmasterservices.plist"
4/12/07 20:23:26 compressord[211] can't refresh cache from file "/Library/Application Support/Apple Qmaster/qmasterservices.plist"
4/12/07 20:23:26 compressord[213] can't refresh cache from file "/Library/Application Support/Apple Qmaster/qmasterservices.plist"
4/12/07 20:23:26 qmasterca[269] can't refresh cache from file "/Library/Application Support/Apple Qmaster/qmasterservices.plist"
4/12/07 20:23:26 qmasterqd[199] can't refresh cache from file "/Library/Application Support/Apple Qmaster/qmasterservices.plist"
4/12/07 20:23:27 QmasterStatusMenu[178] * CDOClient::connect2: CException [NSException raised by 'NSPortTimeoutException', reason = '[NSPortCoder sendBeforeTime:sendReplyPort:] timed out (218489009.603992 218489007.604126) 1'], server [tcp://10.0.1.199:49407]
4/12/07 20:23:27 Batch Monitor[190] * CDOClient::connect2: CException [NSException raised by 'NSPortTimeoutException', reason = '[NSPortCoder sendBeforeTime:sendReplyPort:] timed out (218489037.738080 218489007.738169) 1'], server [tcp://10.0.1.199:49407]
4/12/07 20:23:27 Batch Monitor[190] exception caught in -[ClusterStatus getNewStatusFromController:withOptions:withQueryList:]: NSException raised by 'NSPortTimeoutException', reason = '[NSPortCoder sendBeforeTime:sendReplyPort:] timed out (218489037.738080 218489007.738169) 1'
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In my Activity Monitor, I notice that CompressorTranscoder is not responing ( the 4 CompressorTranscoderX processes are fine ) and the ContentAgent proces isn't responding neither.
Does anyone have any clue on what I could check next or how I could fix my problems ?
Thanks a lot in advance,
Stefaan

Bah, this is crazy, today it doesn't work anymore. Yesterday my cluster was showing up in the Dropdown window, and I could submit a batch to it, and it got processed over my virtual cluster.
Today, after finishing the second part of my movie, I tried it again. I didn't change anything to my settings, my machine hasn't even rebooted (just recovered from sleep mode) and my cluster isn't showing up at all anymore. Even the Qmaster menu doesn't show it
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Thanks for answering
In my case I think I cannot use POI because I need Excel
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So here i am... don´t know what to do now and i entrust to you to give me some tips.
Here comes some code. This is the original code, the one that runned but it doesn´t run right now
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public ActionForward execute(     ActionMapping mapping,
                                                 ActionForm form,
                                                 HttpServletRequest request,
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          InitialContext context = new InitialContext();
          SensorManagerService sensor_service;
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Maybe someway the stream get corrupt? the info i´ve been trying to send and started throwing the exception may still be in the stream? I don´t know what to think right now.
Hope someone has any idea, thankyou.

I dont see the problem. However, I suggest you change this;
System.out.println("Error en la trasmision de datos"); t
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Hi,
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I think this is a simple encoding problem.
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You said your using a servlet so your servlet needs a similar block for its pattern
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Hi
I am a new member starting with Java Servlets:
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N

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Rgds
N

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int requestlength = req.getContentLength();
if(l==0){
if(requestlength > 0 ){
for(int i=0;i<requestlength;i++){
int c = in.read();
if(c==-1)break;
l++;
else if(l==2)
out.write(rankstring);
System.out.println("l value is" + l);
public void doGet(HttpServletRequest req, HttpServletResponse res) throws IOException,ServletException{
doPost(req,res);
how do i get around this problem?advice will be greatly appreciated
regards

i think you want to number of hits kind of value...
make that variable static
you should get the value that you want
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Servlet intercommunication problem

Hi,
I have a problem regarding servlet intercommunication.
What I m doing is : I have an HTML form in which user enters some data and submits it. Servlet_1 is called , it gets all the parameters and displays all data in the form of an html form again. Now, if the user clicks on "SAVE" button , only then Servlet_2 should get called and that data should be stored in database .
I m having problem while saving data.I just lose track of data entered by the user somewhere between the servlets.
How should I get the data enetered by the user previously, and in what form I should store it to access it later on through any servlet?
Please help.
Regards
Shweta

I suggest other than showing the data on the HTML returned by Servlet_1, you created hidden values of the data submitted into the displayed form. In this way, the data would be resent to Servlet_2 when Save is pressed.
Alternatively, you can use a Session to store the contents of the submitted information. (this will enable you to access it later on any servlet)

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