R12 DMZ login page hangs after some time

Node 1: Database 10.2.0.3
Node 2: internal Application
Node 3: External Application - currently not exposed to the internet, we are testing opening the URL internally.
Followed DOC I: 380490.1 - in order to achieve the External node.
The Database and Application are working fine. The instance works perfectly fine.
However, when we open the External URL, it hangs on the re-direct page. it does not give any error.
Once we bounce the External services, the URL does show up for 2-3 attempts.
Even though the URL hangs, we are able to ssh, run traceroute, sqlplus, perform adadmin tasks etc - from the External node. we do not have any issues performing the activities mentioned.
Solutions tried:
We increased the OHS timeout parameter - in the XML file and ran autoConfig.
We increased the keepalive parameter in the httpd.conf and mod_oc4j.
Please let us know what else we can try.
Doubt: Our Internal Application and Database server are 32 GB RAM each. However, the External Node, is 3 GB.
Could this be a possible issue.
Internal application and Database are seperated by a single frewall from each other. Wherein, the External Application is seperated from these servers with 3 firewalls.
The 3rd firewall is used to URL filtering. Could this be a possible issue.
Error in Apache Error Log:
[Wed Nov 11 16:48:39 2009] [warn] [client *.*.*.*.*] oc4j_socket_recvfull timed out
[Wed Nov 11 16:48:39 2009] [error] [client *.*.*.*.*] [ecid: 1257943417:*.*.*.*:27189:0:487,0] mod_oc4j: request to OC4J ERPWeb.*.ae:21500 failed: recv failed (errno=4)
We increased - Timeout 1500 - Default 300 (apps/tech_st/10.1.3/Apache/Apache/conf)
Bounced Services.
adapcctl.sh stop adoacorectl.sh stop adformsctl.sh stop adoafmctl.sh stop adopmnctl.sh stop
Started in the reverse order.
rm -fr $INST_TOP/ora/10.1.3/j2ee/oacore/persistence/*
rm -fr $INST_TOP/ora/10.1.3/j2ee/oafm/persistence/*
rm -fr $INST_TOP/ora/10.1.3/j2ee/forms/persistence/*
XML file - we made the following changes: <ohstimeout oa_var="s_ohstimeout">1200</ohstimeout>
changed from 300 to 1200
s_long_runing_jvm = false - true by default.
AutoConfig
cat $IAS_ORACLE_HOME/Apache/Apache/conf/mod_oc4j.conf
# Oracle iAS mod_oc4j configuration file: mod_oc4j.conf #
LoadModule oc4j_module libexec/mod_oc4j.so
<IfModule mod_oc4j.c>
</IfModule>
Checked - $INST_TOP/ora/10.1.3/j2ee/oacore/config/oc4j.properties
LONG_RUNNING_JVM=false (should be false after autoconfig)
Compiled jsps
$FND_TOP/patch/115/bin - perl ojspCompile.pl –-compile –-flush -p 2
cat /oracle/dmzappl/inst/apps/ERPPROD_erpweb01/logs/ora/10.1.3/j2ee/oacore/oacore_default_group_1/application.log
09/11/11 17:26:57.72 html: chain failed
javax.servlet.ServletException: java.lang.RuntimeException: Cannot get Connection to the Database
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.http.EvermindPageContext.handlePageThrowable (EvermindPageContext.java:780)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.http.EvermindPageContext.handlePageException (EvermindPageContext.java:727)
at AppsLocalLogin.jspService(_AppsLocalLogin.java:304)
at com.orionserver[Oracle Containers for J2EE 10g (10.1.3.0.0) ].http.OrionHttpJspPage.service(OrionHttpJspPage.java:59)
at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:335)
at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:478)
at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:401)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.http.ResourceFilterChain.doFilter (ResourceFilterChain.java:64)
at oracle.apps.jtf.base.session.ReleaseResFilter.doFilter(ReleaseResFilter.java:26)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.http.EvermindFilterChain.doFilter (EvermindFilterChain.java:15)
at oracle.apps.fnd.security.AppsServletFilter.doFilter(AppsServletFilter.java:318)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.http.ServletRequestDispatcher.invoke (ServletRequestDispatcher.java:610)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.http.ServletRequestDispatcher.forwardInternal (ServletRequestDispatcher.java:359)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.http.HttpRequestHandler.doProcessRequest (HttpRequestHandler.java:870)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.http.HttpRequestHandler.processRequest (HttpRequestHandler.java
We got a doscument which said:
Submit 'Compile Security' concurrent request - with parameter "yes" - However, we have not run this request.
cat /oracle/dmzappl/inst/apps/ERPPROD_erpweb01/logs/ora/10.1.3/opmn/oacorestd.err
09/11/11 17:21:52 Caused by: oracle.apps.jtf.base.resources.FrameworkException: Failure in CacheLoader: oracle.apps.jtf.base.resources.FrameworkException
09/11/11 17:21:52 at oracle.apps.jtf.cache.IASCacheProvider.get(IASCacheProvider.java:830)
09/11/11 17:21:52 at oracle.apps.jtf.cache.CacheManager.getInternal(CacheManager.java:4802)
09/11/11 17:21:52 at oracle.apps.jtf.cache.CacheManager.get(CacheManager.java:4624)
09/11/11 17:21:52 at oracle.apps.fnd.cache.AppsCache.get(AppsCache.java:216)
09/11/11 17:21:52 ... 23 more
09/11/11 17:21:52 Caused by: oracle.apps.jtf.base.resources.FrameworkException
09/11/11 17:21:52 at oracle.apps.fnd.cache.GenericCacheLoader.load(GenericCacheLoader.java:222)
09/11/11 17:21:52 at oracle.apps.fnd.cache.GenericCacheLoader.load(GenericCacheLoader.java:189)
09/11/11 17:21:52 at oracle.apps.fnd.cache.GenericCacheLoader.load(GenericCacheLoader.java:166)
09/11/11 17:21:52 at oracle.apps.fnd.cache.GenericCacheLoader.load(GenericCacheLoader.java:141)
09/11/11 17:21:52 at oracle.apps.jtf.cache.GenericCacheLoader.load(GenericCacheLoader.java:87)
09/11/11 17:21:52 at oracle.ias.cache.CacheLoader.callLoad(Unknown Source)
09/11/11 17:21:52 at oracle.ias.cache.CacheHandle.findObject(Unknown Source)
09/11/11 17:21:52 at oracle.ias.cache.CacheHandle.locateObject(Unknown Source)
09/11/11 17:21:52 at oracle.ias.cache.CacheAccess.get(Unknown Source)
09/11/11 17:21:52 at oracle.apps.jtf.cache.IASCacheProvider.get(IASCacheProvider.java:771)
09/11/11 17:21:52 ... 26 more
09/11/11 17:21:52 Caused by: oracle.apps.jtf.base.resources.FrameworkException: Io exception: Connection timed out
09/11/11 17:21:52 at oracle.apps.jtf.base.resources.FrameworkException.convertException(FrameworkException.java:607)
09/11/11 17:21:52 at oracle.apps.jtf.base.resources.FrameworkException.addException(FrameworkException.java:585)
09/11/11 17:21:52 at oracle.apps
We ran Concurrent manger job "Synchronize Workflow Local Tables" as sysadmin.
cd $INST_TOP/ora/10.1.3/opmn/conf
$ grep Xmx opmn.xml
<data id="java-options" value="-server -verbose:gc -*Xmx512M -Xms128M* -XX:MaxPermSize=160M -XX:NewRatio=2 - XX:+PrintGCTimeStamps -XX:+UseTLAB -XX:+UseParallelGC -XX:ParallelGCThreads=2 -Dcom.sun.management.jmxremote - Djava.security.policy=$ORACLE_HOME/j2ee/oacore/config/java2.policy -Djava.awt.headless=true -Dhttp.webdir.enable=false - Doracle.security.jazn.config=/oracle/dmzappl/inst/apps/ERPPROD_erpweb01/ora/10.1.3/j2ee/oacore/config/jazn.xml"/>
<data id="java-options" value="-server -verbose:gc -Xmx512M -Xms128M -XX:MaxPermSize=160M -XX:NewRatio=2 - XX:+PrintGCTimeStamps -XX:+UseTLAB -XX:+UseParallelGC -XX:ParallelGCThreads=2 - Djava.security.policy=$ORACLE_HOME/j2ee/oacore/config/java2.policy -Djava.awt.headless=true -Dhttp.webdir.enable=false"/>
<data id="java-options" value="-server -verbose:gc -Xmx256M -Xms64M -XX:MaxPermSize=128M -XX:NewRatio=2 - XX:+PrintGCTimeStamps -XX:+UseTLAB -XX:+UseParallelGC -XX:ParallelGCThreads=2 - Djava.security.policy=$ORACLE_HOME/j2ee/oacore/config/java2.policy -Djava.awt.headless=true -Dhttp.webdir.enable=false - Doracle.security.jazn.config=/oracle/dmzappl/inst/apps/ERPPROD_erpweb01/ora/10.1.3/j2ee/forms/config/jazn.xml"/>
<data id="java-options" value="-server -verbose:gc -Xmx256M -Xms64M -XX:MaxPermSize=128M -XX:NewRatio=2 - XX:+PrintGCTimeStamps -XX:+UseTLAB -XX:+UseParallelGC -XX:ParallelGCThreads=2 - Djava.security.policy=$ORACLE_HOME/j2ee/oacore/config/java2.policy -Djava.awt.headless=true -Dhttp.webdir.enable=false"/>
<data id="java-options" value="-server -verbose:gc -Xmx256M -Xms64M -XX:MaxPermSize=128M -XX:NewRatio=2 - XX:+PrintGCTimeStamps -XX:+UseTLAB -XX:+UseParallelGC -XX:ParallelGCThreads=2 - Djava.security.policy=$ORACLE_HOME/j2ee/oacore/config/java2.policy -Djava.awt.headless=true -Dhttp.webdir.enable=false - Doracle.security.jazn.config=/oracle/dmzappl/inst/apps/ERPPROD_erpweb
Would changing: -Xmx512M -Xms128M to -Xmx1024M -Xms256M help ?.
Please help.
Navas

Hi,
The application was working fine when the network admin opened all the ports on Firewalls.
Now he is asking for the specific list of ports to be opned from DMZ Server -> Database, DMZ Server -> Internal Application node and Internal Application node -> Database so that he can close the remaining ports. Is there any document in metalink which lists this ports ?
Regards
Safaras

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many many thanks in advance
null

When the application deployed by BC4J/JSP not responding, does the sample JSP application still works? i.e. does any other application respond? Does 1 user respond? Is the database source (JDBC), running Oracle 8.1.7? What is the platform running the database (e.g. local NT database)?

Firefox consumes a lot of CPU resources after some time

Hi,
I've upgraded from Firefox 3.5.16 to Firefox 5.0 on Linux i386 with 512 MB RAM. Everything is working fine until after "some time" (don't know the exact time period) the CPU load increases to 100%, my average system load explodes and the system is swapping memory wildly. This suddenly happens, even if Firefox is in the background while I'm working on different things. So it does not belong to any memory-hungry stuff like Flash pages or JavaScript sites.
I don't think the problem is caused by my extensions (adblock, noscript, multifox, tabloc) or plugins (mplayer/Flash) either.
I think it is the Javascript Garbage Collector. I could tweak its cycle time in about:config, but this would just be work around the problem.
Note that I usually have many open (app) tabs that extensively use Javascript and AJAX.
I really like the new Firefox features, but I haven't expected that "5.0" stands for 5.0 average system load. Sorry couldn't resist that remark ;D
bcctr

I updated to Firefox Aurora this morning. Problems seem to be solved. Thank you!

SA 540 drops wan connectivity after some time interval

hello guys,
I have problem. after a certain period of time (ranging from 2 minutes to several hours) the unit keeps dropping the WAN connection, making the unit unaccessible from the WAN side. The strange thing is, that when the connection is dropped, the unit is perfectly accessible from the LAN side, the WAN LED is still on, status info shows the WAN link up, and packet trace shows broadcasted traffic on the WAN interface, so only the directed communication to and from the ISPs gateway (configured to fix IP) seems to be blocked for some reason. When this happens, then plugging the WAN cable to the Optional WAN port enables traffic again, but it is also dropped after some time, and then only power cycling the unit restores WAN connectivity.
please suggest me as soon as possiblethat how to fix this problem?
Awaiting for valuable reply.....

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you turn on the computer, and again when you log in.
Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to start up and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal startup may also be somewhat slow.
The login screen appears even if you usually login automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Test while in safe mode. Same problem?
After testing, restart as usual (not in safe mode) and verify that you still have the problem. Post the results of the test.

Why does my jdev hang for some time

Hi,
I want to know the reason why my jdev 10.1.3.4.0 hang for some time in some scenario's?
like:
whenever i start standalone oc4j server, after using the application in server' url, if i go to jdev it will hang for a min or so.
normal usage also it will hang for some thrice a day or so??
can any one tell..
Thanks,

Hello John,
Thank you for providing all the information about what is going on with the SuperDrive issue you are experiencing.
I recommend resetting the System Management Controller (SMC) on your iMac:
Resetting the SMC for Mac Pro, Intel-based iMac, Intel-based Mac mini, or Intel-based Xserve
Shut down the computer.
Unplug the computer's power cord.
Wait fifteen seconds.
Attach the computer's power cord.
Wait five seconds, then press the power button to turn on the computer.
You can find the full article here:
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/HT3964
If you are still having trouble with playing audio, I recommend the following article:
Apple Computers: Troubleshooting the slot-loading SuperDrive
http://support.apple.com/kb/HT2801
Thank you for posting in the Apple Support Communities.
Best,
Sheila M.

Socket connection dies after some time being idle w/o firing event

Hi,
I use this code to connecto my server from my Client
          if (socket == null){
               try{
                    if (pwd.length > 0)
                         System.out.println("opening connection...to "+host+" at port "+port);
                         socket = new Socket(host, port);
                         toServer = new ObjectOutputStream(socket.getOutputStream());
                         fromServer = new ObjectInputStream(socket.getInputStream());
                         System.out.println("Connection established!");
                         fireClientEvent(new ClientEvent(this, ClientEvent.CONNECTION_ESTABLISHED, ""));
                         this.connected = true;
                         Hashtable<String, String> table = new Hashtable<String, String>();
                         table.put("action", "login");
                         table.put("key", convertToString(pwd));
                         sendObject(table);
               }catch(IOException e){
                    try{
                         if (socket != null)
                              socket.close();
                         System.out.println("Error while connecting... Server does not exist!");
                         this.connected = false;
                         fireClientEvent(new ClientEvent(this, ClientEvent.SERVER_DOES_NOT_EXIST, getHost()+":"+getPort()));
                    }catch(IOException x){
                         System.out.println("I/O ERROR @ CLIENT CONNECT!");
                         removeAllListeners();
                         x.printStackTrace();
          }And this is how my server responds to client requests:
     public void run()
          ServerSocket server = null;
          Socket socket           = null;
          Hashtable<String, String> ClientInfo = new Hashtable<String, String>();
          try{
               server = new ServerSocket(getPort());
               //listen for connections
               while (!stopServer)
                    try{
                         System.out.println("Starting Server at port: "+getPort());
                         socket = server.accept();
                         ClientInfo.put("remoteip", socket.getInetAddress().toString());
                         fireServerEvent(new ServerEvent(ClientInfo, ServerEvent.CONNECTION_REQUESTED, null));
                         ThreadedSocket tsocket = getThreadedSocket(socket);
                         tsocket.addSocketListener(this);
                         tsocket.setMaxSolvingTime(maxSolvingTime);
                         Sockets.add(tsocket);
                         executor.execute(tsocket);
                         fireServerEvent(new ServerEvent(ClientInfo, ServerEvent.CONNECTION_ESTABLISHED, null));
                    }catch (IOException ioe){
                         fireServerEvent(new ServerEvent(ClientInfo, ServerEvent.UNEXPECTED_CONNECTION_ERROR, null));
                         exceptionThrown(ioe);
          }catch(Exception x){
               exceptionThrown(x);
          }finally{
               try{
                    server.close();
                    socket.close();
               }catch (Exception e){
                    exceptionThrown(e);
     }It seems that after some time (aprox. 10-15 minutes) being idle, my client gets disconnected withougt firing any event so the Server thinks the client is still connected but it does not get any messages because the client has closed the connection (I think)
Am I doing/thinking something wrong?

Thanks It seems that I am doing something completely wrong.
I created this object:
package main;
import java.util.Hashtable;
import java.util.Vector;
public class SocketPinger implements Runnable {
    private Vector<ThreadedSocket> sockets = null;
    Hashtable<String, Object> action = new Hashtable<String, Object>();
    public SocketPinger()
        action.put("action", "scheduled_ping");
    public SocketPinger(Vector<ThreadedSocket> socks)
        this.sockets = socks;
        action.put("action", "scheduled_ping");
    public void run()
         process();
    public void process()
         if (sockets != null)
              for (ThreadedSocket socket : this.sockets)
                   try
                        socket.sendObject(action);
                   }catch(Exception e){
                        sockets.remove(socket);
    public void setSockets(Vector<ThreadedSocket> socks)
         this.sockets = socks;
}which I call with this command:
     public class ThreadScheduler
         private SocketPinger pinger;
         private final ScheduledExecutorService scheduler = Executors.newSingleThreadScheduledExecutor();
         public void activate()
             pinger = new SocketPinger(Sockets);
             scheduler.scheduleWithFixedDelay (pinger, 5, 10, TimeUnit.SECONDS);
         public void deactivate() {
             scheduler.shutdown();
     }This makes the Scheduler object wake up every 10 secs and ping all the clients. This works and since then everything seemed to work fine. Today I noticed that when I shut down the client abnormaly (System.exit(0);) the server doesn't understand it. The sendObject() method works fine.
This is my ThreadedSocket with the sendObject() method:
public class ThreadedSocket extends Thread
     protected Socket socket;
     protected ObjectOutputStream toClient;
     protected ObjectInputStream fromClient;
     protected ConnectionPool Pool;
     protected DBManager db;
     public ThreadedSocket(Socket sock, int priority, ConnectionPool pool) throws IOException
          socket = sock;
          this.Pool = pool;
          toClient = new ObjectOutputStream(socket.getOutputStream());
          fromClient = new ObjectInputStream(socket.getInputStream());
          setPriority(priority);
          db = new DBManager(Pool);
     public void sendMessage(String message)
          try{
               toClient.writeUnshared(message);
               toClient.flush();
          }catch(Exception e){
     public void sendObject(Hashtable<String, Object> table)
          try{
               toClient.writeUnshared(table);
               toClient.flush();
               toClient.reset();
          }catch(Exception e){
     }and this is how I initialize the ThreadedSocket on my Server object
     public void run()
          ServerSocket server = null;
          Socket socket           = null;
          Hashtable<String, String> ClientInfo = new Hashtable<String, String>();
          try{
               server = new ServerSocket(getPort());
               //listen for connections
               while (!stopServer)
                    try{
                         System.out.println("Starting Server at port: "+getPort());
                         socket = server.accept();
                         ClientInfo.put("remoteip", socket.getInetAddress().toString());
                         fireServerEvent(new ServerEvent(ClientInfo, ServerEvent.CONNECTION_REQUESTED, null));
                         ThreadedSocket tsocket = getThreadedSocket(socket);
                         tsocket.addSocketListener(this);
                         tsocket.setMaxSolvingTime(maxSolvingTime);
                         Sockets.add(tsocket);
                         executor.execute(tsocket);
                         fireServerEvent(new ServerEvent(ClientInfo, ServerEvent.CONNECTION_ESTABLISHED, null));
                    }catch (IOException ioe){
                         fireServerEvent(new ServerEvent(ClientInfo, ServerEvent.UNEXPECTED_CONNECTION_ERROR, null));
                         exceptionThrown(ioe);
          }catch(Exception x){
               exceptionThrown(x);
          }finally{
               try{
                    server.close();
                    socket.close();
                    if (scheduler != null)
                         scheduler.deactivate();
               }catch (Exception e){
                    exceptionThrown(e);
          So I have to make this question unanswered, because it is actually partially answered. Although the server can wake up and ping the clients, I still find it difficult to see if the client really exists after some abnormal termination (i.e. computer dies, or sth similar).

Multitouch Gestures Stop working after some time in Mountain Lion

I have a problem with Multitouch Gestures on Macbook Pro, using Mountain Lion. After some time 3 thinger swipe to left/right stops working. The only thing that helps to solve this problem is making a restart. Are there any other ways to get rid of this problem?

Me too. My iMac and MBP same here. Having graphics glitches when playing games neither in Mac or Bootcamp with Windows. Sometimes screen even slashed into half and freezed. Wake up from sleep also have graphics issues, like I need to use the crusor to oaint out the grey login screen, if not, it will stay white. Slowly moving the crusor will paint back the grey background.

R12 DMZ login page hangs after some time

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