Performance issue - application running on front

Hi, I have a Strange performance issue:
- when I launch my app from flash builder without touching anything, it is slow,
- when I launch it from flash builder and immediately open another window and keep it in front of it, it is really fast
it is a windowed application, full screen, displaying multiple objects moving around
had anyone already had the issue?
thanks,
YAnn

For monitoring Azure using SCOM 2012R2, you can refer below link
http://blogs.technet.com/b/dcaro/archive/2012/05/02/how-to-monitor-your-windows-azure-application-with-system-center-2012.aspx
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Hi. We have an application in Java. We run it using 1.5.0_9 on Win2003 and have no problems when running it on single Intel CPU PCs and Servers. However, whenever we are finding that some higher spec servers are running the application significantly slower... around 30%. It seems that it's either a problem with the Enterprise version of Win2k3 or perhaps with AMD Opteron CPUs.
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Edited by: gingerdazza on Jul 2, 2008 1:21 AM

I'm able to recreate the problem where a section of a screen goes black using with the following config.
JDK 1.7.0_06
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SSAS Strange Performance Issues (Long running with NO read or write activity) - UAT Test Environment

Hi All,
Im looking for some pointers, my team and I have drawn a blank as to what is going on here.
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Hi aown61,
According to your description, you get long time processing after executing processing several times. Right?
In this scenario, it's quite strange that a processing take long time. I suggest you using SQL Profiler to monitor the event during processing. It can track engine process events, such as the start of a batch or a transaction, you can replay the events captured
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Performance Issue : Application and oracle database in different sub-net

Hi,
We have an 24/7 application that uses oracle 11g R2 as the back end database. The application sits on a separate box and the oracle database sits on a separate box.
Unless we keep both the machines in the same sub-net, the throughput of the application becomes very slow and kind of un-usable in performance setups.
In fully loaded conditions, the application will be inserting around 12K records per minute into the database. In such scenario, restarting the application takes longer time (more than 2 hours) when the oracle server is on a different network as compared to the application. In real world, the oracle will be in a separate dedicated network and the DBAs resist to have an application in the same sub-net.
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871609 wrote:
Hi,
We have an 24/7 application that uses oracle 11g R2 as the back end database. The application sits on a separate box and the oracle database sits on a separate box.
Unless we keep both the machines in the same sub-net, the throughput of the application becomes very slow and kind of un-usable in performance setups.
In fully loaded conditions, the application will be inserting around 12K records per minute into the database. In such scenario, restarting the application takes longer time (more than 2 hours) when the oracle server is on a different network as compared to the application. In real world, the oracle will be in a separate dedicated network and the DBAs resist to have an application in the same sub-net.
Is there a way we can keep the application and the oracle database server in a different network (but present in same location) and achieve same throughput/performance when both servers are on same subnet.
Thanks,
KrishnaHave the DBAs explained why they resist having the apps and db servers in the same subnet? Every place I've ever worked configured it exactly that way ... db and apps servers on different machines in the same subnet.

Accrual Reconciliation Load Run report performance issue.

we have significant performance issues when running accrual reconciliation load run report. we had to cancel after have it run for a day. any idea on how to resolve it?

We experienced similar issue. As the runtime of this report depends on the input parameters. Remember, your first run of this report going to take significant amount of time and the subsequent runs will be much shorter.
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Accrual Reconciliation Load Run Has Slow Performance [ID 1490578.1]
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Process flow/map performance issues

We have some issues with our OWB-based application and we're looking to find out if there are different ways we could be using the tool, or features/options we've missed.
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Our DBAs are experimenting with 'shared server' settings at a database level which may help to some degree but won't be the whole story.
2) Another option is simply to run less maps eg. load the staging area as now, collate stats on which staging tables contain new data, and then apply some logic such that subsequent maps only execute if the relevant staging table(s) contain(s) some new data, otherwise bypass that map.
We tried experimenting with the 'Pre Mapping Process' operator, but essentially that just generates another function call from the map package, so we still have the overhead of opening a database session for each map to run the package. Minimal gain.
We thought about adding a function call in the process flow before each map and then branching to either execute/bypass the map as approriate, but the function call still requires opening/closing of a database session each time so, once again, minimal gain.
What we really want is some way for a map or process flow to check without logging onto the database repeatedly.
Any ideas on the above, or other potential solutions anyone could suggest, would be greatly appreciated.

Hi,
Please see if these documents help.
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Note: 781311.1 - Create Accounting Process Taking A Long Time To Complete After Appying Critical Patches
Note: 557869.1 - EBS: R12 Oracle Financials Critical Patches
Regards,
Hussein

SQL Services 2012 Reporting Services Performance Issue - PowerView

Power view Reports are loading very slow while opening in SharePoint 2013, it is taking more than 15 secs. It is development environment, maximum 10 users , no traffic at all but still not sure why it is taking such long time.
We have 2 servers in SharePoint farm one is for SharePoint and other is for SQL. I have gone through the logs in reporting database, attached the same below. Can you please help me what we can say from the sheet attached ,whether it is slow or fast. Or where
we are having issue.
SQL server version is SQL 2012 SP2.
SharePoint 2013 is RTM.
Gone through the below blogs but no luck.
http://blogs.msdn.com/b/psssql/archive/2013/07/29/tracking-down-power-view-performance-problems.aspx
https://social.msdn.microsoft.com/Forums/sqlserver/en-US/4ed01ff4-139a-4eb3-9e2e-df12a9c316ff/ssrs-2008-r2-and-sharepoint-2010-performance-problems
Thanks.
Thanks, Ram Ch

Hi Ram Ch,
According to your description, your have performance issue when running your Power View report. Right?
In this scenario, based on your screenshot, it takes long time on data retrieval. How is the performance when executing the query in SQL Server Management Studio? Since you mention there's no traffic at all and 15 seconds will not cause query
time out, we suggest you optimize the query for retrieving data. Please refer to links below:
Troubleshooting Reports: Report Performance
Please share some detail information about the data query if possible. Thanks.
Best Regards,
Simon Hou

Socket based application - Performance Issues - Suggestions Needed

Hi All,
We have an application which basically has been developed using core java. Here is a high level information about the application:
a) It opens a serversocket which allows clients to connect to it.
b) For every new client connection, a separate thread is created and this thread deals with requests from clients, processing the data and replying back to clients.
c) Each socket is polled continuously and sockettimeout is 2 seconds. If there is a timeout, we handle the situation and socket is again read. So basically sockets is read every 2 seconds. If number of timeouts reaches a configurable value, we close the connection and thread is dropped as well.
d) In production, three instances of this application are running with the help of a cisco load balancer. It is there for last 5 years.
However there has always been some minor performance isssues and we have sorted them out using different types of garbage collectors, by introducing hardware load balancers, upgrading the code for new Java versions. It is currently running on 1.4.2.
However there has always been some performance issues and today while googling over internet I came across following on the bea website which says that core java sockets are not as efficients as native API. BEA has implemented its own APIs for weblogic. My queries are:
a) Are there any better Java Socket/network API (for solairs, I know Java is plateform independenet but there could be lib which also using native libs) which are much more efficient than Core Java.
b) We are getting the InputStream/OutputStream and creating objects of DataInputStream/DataOutputStream to read the data 'Byte-By-Byte'. Each byte can have different information thats why it is required. Are there any better way of getting info than what we are currently doing.
c) As I mentioned, we are continously polling the socket for read operation with a timeout value of 2 seconds. What is the better among the following from performance point of view: (1) Frequent read operation with a lesser timeout value or (2) Less Frequent read operations with larger timeout value. (3) Any better idea??
Please suggest few things or pointers which I could do to improve the performance of the applcations. Many thanks.
Thanks,Akhil
From BEA website:-
"Although the pure-Java implementation of socket reader threads is a reliable and portable method of peer-to-peer communication, it does not provide the best performance for heavy-duty socket usage in a WebLogic Server cluster. With pure-Java socket readers, threads must actively poll all opened sockets to determine if they contain data to read. In other words, socket reader threads are always "busy" polling sockets, even if the sockets have no data to read. This unnecessary overhead can reduce performance."

My recommendations:
- Always use a BufferedInputStream and BufferedOutputStream around the socket streams
- Increase the socket send and receive buffers to at least 32k if you are on a Windows platform where the default is a ridiculous 8k, which hasn't been enough for about 15 years.
- Your 2-second timeout is far too short. Increase it to at least 10 seconds.
- Your strategy of counting up to N short timeouts of S seconds each is completely pointless. Change it to one single timeout of N*S seconds. There is nothing to be gained by the complication you have introduced to this.

Issue on running a java application on tomcat 6.0.43 with error filter mappings

Hi ,
I am new to Java.
I am facing an issue on running J2EE application in Tomcat Server 6.0.43, I am getting the below error for which 404 page is displayed.
Jan 27, 2015 4:21:57 PM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre6\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\QuickTime\QTSystem\;C:\Program Files\CapgeminiScripts\Support Tools\;C:\Program Files (x86)\Common Files\Lenovo;C:\Program Files\TortoiseSVN\bin;C:\Program Files\Java\jre6\bin;;.
Jan 27, 2015 4:21:57 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:gui' did not find a matching property.
Jan 27, 2015 4:21:57 PM org.apache.coyote.http11.Http11Protocol init
INFO: Initializing Coyote HTTP/1.1 on http-8080
Jan 27, 2015 4:21:57 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 420 ms
Jan 27, 2015 4:21:57 PM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Jan 27, 2015 4:21:57 PM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/6.0.43
Jan 27, 2015 4:21:57 PM org.apache.catalina.loader.WebappClassLoader validateJarFile
INFO: validateJarFile(D:\Users\sparipoo\workspace_KTW\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\gui\WEB-INF\lib\servlet-api.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
Jan 27, 2015 4:21:57 PM org.apache.tomcat.util.digester.Digester endElement
SEVERE: End event threw exception
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.tomcat.util.IntrospectionUtils.callMethod1(IntrospectionUtils.java:928)
at org.apache.tomcat.util.digester.SetNextRule.end(SetNextRule.java:192)
at org.apache.tomcat.util.digester.Rule.end(Rule.java:228)
at org.apache.tomcat.util.digester.Digester.endElement(Digester.java:1158)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1675)
at org.apache.catalina.startup.ContextConfig.applicationWebConfig(ContextConfig.java:365)
at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:1045)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:265)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4616)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1060)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:822)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1060)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
at org.apache.catalina.core.StandardService.start(StandardService.java:525)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:759)
at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: java.lang.IllegalArgumentException: Invalid <url-pattern> /exportHandler/*.jsp in filter mapping
at org.apache.catalina.core.StandardContext.addFilterMap(StandardContext.java:2531)
... 37 more
Jan 27, 2015 4:21:57 PM org.apache.catalina.startup.ContextConfig applicationWebConfig
SEVERE: Parse error in application web.xml file at jndi:/localhost/gui/WEB-INF/web.xml
java.lang.IllegalArgumentException: Invalid <url-pattern> /exportHandler/*.jsp in filter mapping
at org.apache.tomcat.util.digester.Digester.createSAXException(Digester.java:2839)
at org.apache.tomcat.util.digester.Digester.createSAXException(Digester.java:2865)
at org.apache.tomcat.util.digester.Digester.endElement(Digester.java:1161)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1675)
at org.apache.catalina.startup.ContextConfig.applicationWebConfig(ContextConfig.java:365)
at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:1045)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:265)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4616)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1060)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:822)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1060)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
at org.apache.catalina.core.StandardService.start(StandardService.java:525)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:759)
at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: java.lang.IllegalArgumentException: Invalid <url-pattern> /exportHandler/*.jsp in filter mapping
at org.apache.catalina.core.StandardContext.addFilterMap(StandardContext.java:2531)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.tomcat.util.IntrospectionUtils.callMethod1(IntrospectionUtils.java:928)
at org.apache.tomcat.util.digester.SetNextRule.end(SetNextRule.java:192)
at org.apache.tomcat.util.digester.Rule.end(Rule.java:228)
at org.apache.tomcat.util.digester.Digester.endElement(Digester.java:1158)
... 29 more
Jan 27, 2015 4:21:57 PM org.apache.catalina.startup.ContextConfig applicationWebConfig
SEVERE: Occurred at line 27 column 20
Jan 27, 2015 4:21:57 PM org.apache.catalina.startup.ContextConfig start
SEVERE: Marking this application unavailable due to previous error(s)
Jan 27, 2015 4:21:57 PM org.apache.catalina.core.StandardContext start
SEVERE: Error getConfigured
Jan 27, 2015 4:21:57 PM org.apache.catalina.core.StandardContext start
SEVERE: Context [/gui] startup failed due to previous errors
Jan 27, 2015 4:21:57 PM org.apache.coyote.http11.Http11Protocol start
INFO: Starting Coyote HTTP/1.1 on http-8080
Jan 27, 2015 4:21:57 PM org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:8009
Jan 27, 2015 4:21:57 PM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/10 config=null
Jan 27, 2015 4:21:57 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 607 ms
Please find the web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>gui</display-name>
<error-page>
    <error-code>500</error-code>
    <location>/errorpage.jsp</location>
</error-page>
<error-page>
    <error-code>404</error-code>
    <location>/errorpage.jsp</location>
</error-page>
<filter>
    <filter-name>exportHandler</filter-name>
    <filter-class>security.SecurityFilter</filter-class>
    <init-param>
      <param-name>gui</param-name>
      <param-value>exportHandler</param-value>
    </init-param>
    <init-param>
      <param-name>creationdateRequired</param-name>
      <param-value>true</param-value>
    </init-param>
</filter>
<filter-mapping>
    <filter-name>exportHandler</filter-name>
    <url-pattern>/exportHandler/*.jsp</url-pattern>
</filter-mapping>
   <filter>
    <filter-name>importHandler</filter-name>
    <filter-class>security.SecurityFilter</filter-class>
    <init-param>
      <param-name>gui</param-name>
      <param-value>importHandler</param-value>
    </init-param>
    <init-param>
      <param-name>creationdateRequired</param-name>
      <param-value>true</param-value>
    </init-param>
</filter>
<filter-mapping>
    <filter-name>importHandler</filter-name>
    <url-pattern>/importHandler/*.jsp</url-pattern>
</filter-mapping>
<filter>
    <filter-name>importMonitor</filter-name>
    <filter-class>security.SecurityFilter</filter-class>
    <init-param>
      <param-name>gui</param-name>
      <param-value>importMonitor</param-value>
    </init-param>
    <init-param>
      <param-name>creationdateRequired</param-name>
      <param-value>true</param-value>
    </init-param>
</filter>
<filter-mapping>
    <filter-name>importMonitor</filter-name>
    <url-pattern>/importMonitor/*.jsp</url-pattern>
</filter-mapping>
<filter>
    <filter-name>notificationHandler</filter-name>
    <filter-class>security.SecurityFilter</filter-class>
    <init-param>
      <param-name>gui</param-name>
      <param-value>notificationHandler</param-value>
    </init-param>
    <init-param>
      <param-name>creationdateRequired</param-name>
      <param-value>true</param-value>
    </init-param>
</filter>
<filter-mapping>
    <filter-name>notificationHandler</filter-name>
    <url-pattern>/notificationHandler/*.jsp</url-pattern>
</filter-mapping>
<filter>
    <filter-name>npAgreement</filter-name>
    <filter-class>security.SecurityFilter</filter-class>
    <init-param>
      <param-name>gui</param-name>
      <param-value>npAgreement</param-value>
    </init-param>
    <init-param>
      <param-name>creationdateRequired</param-name>
      <param-value>true</param-value>
    </init-param>
</filter>
<filter-mapping>
    <filter-name>npAgreement</filter-name>
    <url-pattern>/npAgreement/*.jsp</url-pattern>
</filter-mapping>
<filter>
    <filter-name>numberSearch</filter-name>
    <filter-class>security.SecurityFilter</filter-class>
    <init-param>
      <param-name>gui</param-name>
      <param-value>numberSearch</param-value>
    </init-param>
    <init-param>
      <param-name>creationdateRequired</param-name>
      <param-value>true</param-value>
    </init-param>
</filter>
<filter-mapping>
    <filter-name>numberSearch</filter-name>
    <url-pattern>/numberSearch/*.jsp</url-pattern>
</filter-mapping>
   <filter>
    <filter-name>shared</filter-name>
    <filter-class>security.SecurityFilter</filter-class>
    <init-param>
      <param-name>gui</param-name>
      <param-value>shared</param-value>
    </init-param>
    </filter>
<filter-mapping>
    <filter-name>shared</filter-name>
    <url-pattern>/shared/*.jsp</url-pattern>
</filter-mapping>
<servlet>
    <servlet-name>Login</servlet-name>
    <servlet-class>security.SecurityServlet</servlet-class>
</servlet>
<servlet-mapping>
    <servlet-name>Login</servlet-name>
    <url-pattern>/login</url-pattern>
</servlet-mapping>
<resource-ref>
    <description>DB Connection</description>
    <res-ref-name>ds/NPAS</res-ref-name>
    <res-type>javax.sql.DataSource</res-type>
    <res-auth>Container</res-auth>
</resource-ref>
<session-config>
    <session-timeout>480</session-timeout>
</session-config>
<mime-mapping>
    <extension>html</extension>
    <mime-type>text/html</mime-type>
</mime-mapping>
<mime-mapping>
    <extension>txt</extension>
    <mime-type>text/plain</mime-type>
</mime-mapping>
<welcome-file-list>
    <welcome-file>login.jsp</welcome-file>
    <welcome-file>sample.jsp</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>
I don't understand as to why this error is appearing. For easy purpose marking the error part BOLD.
Please help me out if there is any solution for the same.
Regards,
Sirisha

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ADF-JSF: Application Performance Issue

Hello!
My question or set of questions will be a bit vague...I am simply not sure where to look for problem(s). So here is what I have. Application implemented with ADF-JSF (JDEV ver:10.1.3.2.0). It basically has 5 pages. Each page containes user input form, commandButton and result table. Functionally, each page is a 'search page' that returns results based on what user specified in the form. Components on each page are bound to VO that is based on EO (DB table). Tables have at least 2.5M records up to 16M. Certain indexes exist (for most common searches) to improve the performance. However, there have been performance issues found and largely they would be grouped into the following:
1. User is on page A, performs the search, goes to page B (via link) and performs other search, then goes back to A and similar search takes much longer to return results. Seems to me that this moght be related to memory. Maybe results of the previous search are cashed and it takes new search to retreive results longer as the VO cashe needs to be cleared first. Does that make sense?
2. User is on page A and then goes to B. Leaves browser for 10-20 minutes and tries to go back to A. It takes up to a minute before page reloads with the previously displayed results. I am thinking this has to be related to page lifecycle where AM tries to re-execute bindings ( I do not think it is passivation issue though). What is the best practice to control the lifecycle?
Any pointer on where to look for the solution is very welcome.
Rade

Carl,
To use Tom Kyte's analogy, you are firing a gun into a room full of people hoping to hit the bad guy. You haven't seemed to have gotten any information about where the performance issues lie. It could be in the DB, network, ADF Business Components, JSF layer, other stuff monopolizing resources, etc, etc. I have ADF BC apps developed in 10.1.3.3 that run quite well.
So, I would recommend you spend some time investigating where the performance problems lie. Try turning on logging output, check machine utilization - use your investigative techniques to find the bad guy so you can then work on fixing him.
John

Performance Issue - 32 Bit Applications vs 64 Bit DB Server

Dear All,
My Current set up is as follows:
Operating System: Windows 2003 Standard Edition R2 64 Bit
Database: Oracle 10.2.0.1 64 Bit
Client Connectivity: Oracle 10.2.0.1 32 Bit
Application: Lotus Domino 7.0.2 FP3 32 Bit
In the above set up,
When Application try to fetch the records from DB through client, it takes so much of time as compared to when i run the same with (OS & DB in 32 bit).
kindly let me know how to do workaround on this, analysation have to be made to overcome this performance issue.
thanks & regards
suresh

1. Check for available statistics.
2. Verify plans against 32 bit and 64 bit databases.
3. Analyze the sql trace for the session.

Performance issue on swing application

Hi,
I have one swing application and i am facing one performance issue after minimizing the applicaton. The same application is taking 2-5 seconds to redraw the screen again when i am trying to maximize it. Is there any way to improve this redraw delay ?..Is there any way to tweak the Event Dispatcher thread and by this we can overcome correct me if i am wrong? .
Is there anybody facing such kind of issue please help me...
Thanks in Advance,
Anish.

Encephalopathic wrote:
good guess. What do you think? Loading the images in the painting methods?That is a common mistake. To the OP, some common errors when overriding paintComponent include:
1. Loading an image each time paintComponent() is called. Just load it once, cache it, and only draw it in paintComponent, this saves you from the IO of loading the image on repaints.
2. Doing application logic/complex operations in paintComponent. paintComponent should be kept fast, only do painting operations, keep long-running tasks, IO, etc. out of it.
3. To a lesser extent, doing lots of complex painting on a repaint call, maybe lots of transforms, translucency, xor-ing, whatever. For most common painting (at least in my work, YMMV), this isn't a problem, but if it is you should consider drawing all "static" stuff to a buffer (such as a BufferedImage) and just painting the BufferedImage, as opposed to drawing all the static stuff each paintComponent call.
The idea is just to keep the painting logic as fast as possible, to avoid slow repaints as you're seeing. Sometimes people don't realize that paintComponent() will be called every time your component needs to be even partially repainted (minimized/maximized window, partially hidden by another window then revealed again, stretched by window resizing, etc.). That's why things like IO are out of the question.
Of course, I'm babbling now. This may not even be your problem, or you may already know all this stuff. If so, just ignore this post!

Performance of J2ee Application running in Portal Server

Hi,
We have developed the J2ee Application using JSPDynPage and the performance of this Application is going down day by day.
It is taking arround 30 sec to load the page.Sometimes I am getting iView Timed out error if the Load is Very high.
This is all happening in Production server.Can any one please help me to increase the Performance of the Portal.
Thanks in Advance
Ajay

> Thanks for the response.
>
> There is no problem in the application as i know the
> code in this application is perfectly fine.
>
> There will be huge load on monday that too between
> 9-11 AM as too many people will be doing the the
> Database transactions at that point of time (adding
> the data in to the DB extracting huge amount of data
> from DB) the CPU usage in the porduction server will
> reach 90 % to 99 % and it will never come down
> ...this will again come to the normal situation when
> we restart the portal database.
>
> But every monday i cannot restart the server as this
> is in production.
>
> Can anyone please give some tips to increase the
> performance of the portal.
Have you checked your Garbage Collector log file ?
I posted some hints about how to do that in the thread "Server Performance Issue" in this forum.
I could be that you are running out of memory after the heavy load and then everything will be slow afterwards, because full GC's might be triggered frequently.
Regards,
Markus
>
> Thanks
> Ajay

Application running in OC4J (10.1.3.4)Getting issue in OC4J (10.1.3.5) Ver.

Hi,
Below log issue appearing while deploying same application running in OC4J (10.1.3.4 Getting issue in with OC4J (10.1.3.5) .
Tried importing relevant jar files into our application library
backport-util-concurrent-3.1.jar
com.springsource.edu.emory.mathcs.backport-sources-2.2.0.jar
clover-2.4.2.jar
js-14.jar
Still issue is not resolved, Any one please advice, We are using Spring, Struts 1.2 and Hibernate 3.0 in this applicaiton.
at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:298)
at java.lang.Thread.run(Thread.java:595)
02-14@07:49:28 DEBUG (ClassUtils.java:164) - Class [edu.emory.mathcs.backport.java.util.concurrent.ConcurrentHashMap] or one of its dependencies is not present: oracle.classloader.util.AnnotatedClassNotFoundException:
Missing class: edu.emory.mathcs.backport.java.util.concurrent.ConcurrentHashMap
Dependent class: org.springframework.util.ClassUtils
Loader: fzgpdtp.web.fzgpdtp:0.0.0
Code-Source: /u01/app/oracle/product/oas/1013/j2ee/FZGPExternal/applications/fzgpdtp/fzgpdtp/WEB-INF/lib/spring-2.5.2.jar
Configuration: WEB-INF/lib/ directory in /u01/app/oracle/product/oas/1013/j2ee/FZGPExternal/applications/fzgpdtp/fzgpdtp/WEB-INF/lib
This load was initiated at fzgpdtp.web.fzgpdtp:0.0.0 using the loadClass() method.
The missing class is not available from any code-source or loader in the system.
02-14@07:49:28 INFO (ContextLoader.java:188) - Root WebApplicationContext: initialization started
02-14@07:49:28 INFO (AbstractApplicationContext.java:412) - Refreshing [email protected]18d085a: display name [Root WebApplicationContext]; startup date [Tue Feb 14 07:49:28 GST 2012]; root of context hierarchy
02-14@07:49:28 INFO (XmlBeanDefinitionReader.java:309) - Loading XML bean definitions from class path resource [../config/services-applicationContext.xml]
02-14@07:49:29 ERROR (ContextLoader.java:214) - Context initialization failed
java.lang.NullPointerException: name
at java.util.zip.ZipFile.getEntry(ZipFile.java:247)
at java.util.jar.JarFile.getEntry(JarFile.java:204)
at java.util.jar.JarFile.getJarEntry(JarFile.java:187)
at sun.misc.URLClassPath$JarLoader.getResource(URLClassPath.java:674)
at sun.misc.URLClassPath.getResource(URLClassPath.java:161)
at sun.misc.URLClassPath.getResource(URLClassPath.java:213)
at java.lang.ClassLoader.getBootstrapResource(ClassLoader.java:1113)
at java.lang.ClassLoader.getResource(ClassLoader.java:974)
at oracle.classloader.PolicyClassLoader.findJREResource(PolicyClassLoader.java:1233)
at oracle.classloader.JVMSearchPolicy.findResource(JVMSearchPolicy.java:36)
at oracle.classloader.PolicyClassLoader.getResourceUsingPolicy(PolicyClassLoader.java:1490)
at oracle.classloader.PolicyClassLoader.askParentForResource(PolicyClassLoader.java:1405)
at oracle.classloader.SearchPolicy$AskParent.findResource(SearchPolicy.java:78)
at oracle.classloader.SearchSequence.findResource(SearchSequence.java:142)
at oracle.classloader.PolicyClassLoader.getResourceUsingPolicy(PolicyClassLoader.java:1490)
at oracle.classloader.PolicyClassLoader.askParentForResource(PolicyClassLoader.java:1405)
at oracle.classloader.SearchPolicy$AskParent.findResource(SearchPolicy.java:78)
at oracle.classloader.SearchSequence.findResource(SearchSequence.java:142)
at oracle.classloader.PolicyClassLoader.getResourceUsingPolicy(PolicyClassLoader.java:1490)
at oracle.classloader.PolicyClassLoader.askParentForResource(PolicyClassLoader.java:1405)
at oracle.classloader.SearchPolicy$AskParent.findResource(SearchPolicy.java:78)
at oracle.classloader.SearchSequence.findResource(SearchSequence.java:142)
at oracle.classloader.PolicyClassLoader.getResourceUsingPolicy(PolicyClassLoader.java:1490)
at oracle.classloader.PolicyClassLoader.askParentForResource(PolicyClassLoader.java:1405)
at oracle.classloader.SearchPolicy$AskParent.findResource(SearchPolicy.java:78)
at oracle.classloader.SearchSequence.findResource(SearchSequence.java:142)
at oracle.classloader.PolicyClassLoader.getResourceUsingPolicy(PolicyClassLoader.java:1490)
at oracle.classloader.PolicyClassLoader.askParentForResource(PolicyClassLoader.java:1405)
at oracle.classloader.SearchPolicy$AskParent.findResource(SearchPolicy.java:78)
at oracle.classloader.SearchSequence.findResource(SearchSequence.java:142)
at oracle.classloader.PolicyClassLoader.getResourceUsingPolicy(PolicyClassLoader.java:1490)
at oracle.classloader.PolicyClassLoader.askParentForResource(PolicyClassLoader.java:1405)
at oracle.classloader.SearchPolicy$AskParent.findResource(SearchPolicy.java:78)
at oracle.classloader.SearchSequence.findResource(SearchSequence.java:142)
at oracle.classloader.PolicyClassLoader.getResourceUsingPolicy(PolicyClassLoader.java:1490)
at oracle.classloader.PolicyClassLoader.askParentForResource(PolicyClassLoader.java:1405)
at oracle.classloader.SearchPolicy$AskParent.findResource(SearchPolicy.java:78)
at oracle.classloader.SearchSequence.findResource(SearchSequence.java:142)
at oracle.classloader.PolicyClassLoader.getResourceUsingPolicy(PolicyClassLoader.java:1490)
at oracle.classloader.PolicyClassLoader.getResource(PolicyClassLoader.java:1763)
at java.lang.ClassLoader.getResourceAsStream(ClassLoader.java:1159)
at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:139)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:322)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:296)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:143)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:178)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:149)
at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:124)
at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:92)
at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:123)
at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:423)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:353)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:254)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:198)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
at com.evermind.server.http.HttpApplication.initDynamic(HttpApplication.java:1279)
at com.evermind.server.http.HttpApplication.<init>(HttpApplication.java:848)
at com.evermind.server.ApplicationStateRunning.getHttpApplication(ApplicationStateRunning.java:435)
at com.evermind.server.Application.getHttpApplication(Application.java:592)
at com.evermind.server.http.HttpSite$HttpApplicationRunTimeReference.createHttpApplicationFromReference(HttpSite.java:2280)
at com.evermind.server.http.HttpSite$HttpApplicationRunTimeReference.<init>(HttpSite.java:2199)
at com.evermind.server.http.HttpSite.addHttpApplication(HttpSite.java:1833)
at oracle.oc4j.admin.internal.WebApplicationBinder.bindWebApp(WebApplicationBinder.java:304)
at oracle.oc4j.admin.internal.WebApplicationBinder.bindWebApp(WebApplicationBinder.java:120)
at oracle.oc4j.admin.internal.WebApplicationBinder.bindWebApp(WebApplicationBinder.java:92)
at oracle.oc4j.admin.internal.ApplicationDeployer.bindWebApp(ApplicationDeployer.java:825)
at oracle.oc4j.admin.internal.ApplicationDeployer.doDeploy(ApplicationDeployer.java:276)
at oracle.oc4j.admin.internal.DeployerBase.execute(DeployerBase.java:100)
at oracle.oc4j.admin.jmx.server.mbeans.deploy.OC4JDeployerRunnable.doRun(OC4JDeployerRunnable.java:52)
at oracle.oc4j.admin.jmx.server.mbeans.deploy.DeployerRunnable.run(DeployerRunnable.java:81)
at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:298)
at java.lang.Thread.run(Thread.java:595)
02-14@08:17:17 INFO (ContextLoader.java:188) - Root WebApplicationContext: initialization started
02-14@08:17:17 INFO (AbstractApplicationContext.java:412) - Refreshing [email protected]f20d33: display name [Root WebApplicationContext]; startup date [Tue Feb 14 08:17:17 GST 2012]; root of context hierarchy
02-14@08:17:18 INFO (XmlBeanDefinitionReader.java:309) - Loading XML bean definitions from class path resource [../config/services-applicationContext.xml]
02-14@08:17:18 ERROR (ContextLoader.java:214) - Context initialization failed
java.lang.NullPointerException: name
at java.util.zip.ZipFile.getEntry(ZipFile.java:247)
at java.util.jar.JarFile.getEntry(JarFile.java:204)
at java.util.jar.JarFile.getJarEntry(JarFile.java:187)
at sun.misc.URLClassPath$JarLoader.getResource(URLClassPath.java:674)
at sun.misc.URLClassPath.getResource(URLClassPath.java:161)
at sun.misc.URLClassPath.getResource(URLClassPath.java:213)
at java.lang.ClassLoader.getBootstrapResource(ClassLoader.java:1113)
at java.lang.ClassLoader.getResource(ClassLoader.java:974)
at oracle.classloader.PolicyClassLoader.findJREResource(PolicyClassLoader.java:1233)
at oracle.classloader.JVMSearchPolicy.findResource(JVMSearchPolicy.java:36)
at oracle.classloader.PolicyClassLoader.getResourceUsingPolicy(PolicyClassLoader.java:1490)
at oracle.classloader.PolicyClassLoader.askParentForResource(PolicyClassLoader.java:1405)
at oracle.classloader.SearchPolicy$AskParent.findResource(SearchPolicy.java:78)
at oracle.classloader.SearchSequence.findResource(SearchSequence.java:142)
at oracle.classloader.PolicyClassLoader.getResourceUsingPolicy(PolicyClassLoader.java:1490)
at oracle.classloader.PolicyClassLoader.askParentForResource(PolicyClassLoader.java:1405)
at oracle.classloader.SearchPolicy$AskParent.findResource(SearchPolicy.java:78)
at oracle.classloader.SearchSequence.findResource(SearchSequence.java:142)
at oracle.classloader.PolicyClassLoader.getResourceUsingPolicy(PolicyClassLoader.java:1490)
at oracle.classloader.PolicyClassLoader.askParentForResource(PolicyClassLoader.java:1405)
at oracle.classloader.SearchPolicy$AskParent.findResource(SearchPolicy.java:78)
at oracle.classloader.SearchSequence.findResource(SearchSequence.java:142)
at oracle.classloader.PolicyClassLoader.getResourceUsingPolicy(PolicyClassLoader.java:1490)
at oracle.classloader.PolicyClassLoader.askParentForResource(PolicyClassLoader.java:1405)
at oracle.classloader.SearchPolicy$AskParent.findResource(SearchPolicy.java:78)
at oracle.classloader.SearchSequence.findResource(SearchSequence.java:142)
at oracle.classloader.PolicyClassLoader.getResourceUsingPolicy(PolicyClassLoader.java:1490)
at oracle.classloader.PolicyClassLoader.askParentForResource(PolicyClassLoader.java:1405)
at oracle.classloader.SearchPolicy$AskParent.findResource(SearchPolicy.java:78)
at oracle.classloader.SearchSequence.findResource(SearchSequence.java:142)
at oracle.classloader.PolicyClassLoader.getResourceUsingPolicy(PolicyClassLoader.java:1490)
at oracle.classloader.PolicyClassLoader.askParentForResource(PolicyClassLoader.java:1405)
at oracle.classloader.SearchPolicy$AskParent.findResource(SearchPolicy.java:78)
at oracle.classloader.SearchSequence.findResource(SearchSequence.java:142)
at oracle.classloader.PolicyClassLoader.getResourceUsingPolicy(PolicyClassLoader.java:1490)
at oracle.classloader.PolicyClassLoader.askParentForResource(PolicyClassLoader.java:1405)
at oracle.classloader.SearchPolicy$AskParent.findResource(SearchPolicy.java:78)
at oracle.classloader.SearchSequence.findResource(SearchSequence.java:142)
at oracle.classloader.PolicyClassLoader.getResourceUsingPolicy(PolicyClassLoader.java:1490)
at oracle.classloader.PolicyClassLoader.getResource(PolicyClassLoader.java:1763)
at java.lang.ClassLoader.getResourceAsStream(ClassLoader.java:1159)
at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:139)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:322)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:296)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:143)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:178)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:149)
at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:124)
at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:92)
at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:123)
at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:423)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:353)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:254)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:198)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
at com.evermind.server.http.HttpApplication.initDynamic(HttpApplication.java:1279)
at com.evermind.server.http.HttpApplication.<init>(HttpApplication.java:848)
at com.evermind.server.ApplicationStateRunning.getHttpApplication(ApplicationStateRunning.java:435)
at com.evermind.server.Application.getHttpApplication(Application.java:592)
at com.evermind.server.http.HttpSite$HttpApplicationRunTimeReference.createHttpApplicationFromReference(HttpSite.java:2280)
at com.evermind.server.http.HttpSite$HttpApplicationRunTimeReference.<init>(HttpSite.java:2199)
at com.evermind.server.http.HttpSite.addHttpApplication(HttpSite.java:1833)
at oracle.oc4j.admin.internal.WebApplicationBinder.bindWebApp(WebApplicationBinder.java:304)
at oracle.oc4j.admin.internal.WebApplicationBinder.bindWebApp(WebApplicationBinder.java:120)
at oracle.oc4j.admin.internal.WebApplicationBinder.bindWebApp(WebApplicationBinder.java:92)
at oracle.oc4j.admin.internal.ApplicationDeployer.bindWebApp(ApplicationDeployer.java:825)
at oracle.oc4j.admin.internal.ApplicationDeployer.doDeploy(ApplicationDeployer.java:276)
at oracle.oc4j.admin.internal.DeployerBase.execute(DeployerBase.java:100)
at oracle.oc4j.admin.jmx.server.mbeans.deploy.OC4JDeployerRunnable.doRun(OC4JDeployerRunnable.java:52)
at oracle.oc4j.admin.jmx.server.mbeans.deploy.DeployerRunnable.run(DeployerRunnable.java:81)
at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:298)
at java.lang.Thread.run(Thread.java:595)
02-14@08:26:01 INFO (ContextLoader.java:188) - Root WebApplicationContext: initialization started
02-14@08:26:02 INFO (AbstractApplicationContext.java:412) - Refreshing [email protected]125560f: display name [Root WebApplicationContext]; startup date [Tue Feb 14 08:26:02 GST 2012]; root of context hierarchy
02-14@08:26:02 INFO (XmlBeanDefinitionReader.java:309) - Loading XML bean definitions from class path resource [../config/services-applicationContext.xml]

Hi there,
Check for jars you are importing with JVM. The version of jre and its compatibility with imported jars.
Hope it helps !
Reg,
MS

I can't seem to get my iMac (late 2009 model) into automatic sleep mode. If I manually put it into sleep I don't have any issues. I used to solve the issue by running "PleaseSleep" application but that doesn't work anymore since Lion.

I can't seem to get my iMac (late 2009 model) into automatic sleep mode. If I manually put it into sleep I don't have any issues.
I used to solve the issue by running "PleaseSleep" application but that doesn't work anymore since Lion. I now want to fix the underlying problem.
I'm not running any weird background processes and in my energy saver settings I've tagged "put the hard disk to sleep when possible:, "allow power button to put computer to sleep" and "automatically reduce brigthness". All pretty standard.
Is there anyone who can give me some pointers ?

Today I solved the same problem for my iMac running Snow Leopard. See https://discussions.apple.com/thread/3008791#15947706. The method may help you, too.
For me it was the DynDNS Updater preventing my iMac from automatically entering sleep mode.
To my knowledge the cause of this sleep problem can only be a peripheral device or a process. So I suggest to first unplug all peripherals and test whether that's the cause. If not, I suggest to terminate one process after another and to test automatic entering of sleep mode after each. Start with user processes; continue with system process if necessary.
At least that's the way I found the offending process. Fortunately, I was able to change the configuration of that process to allow again automatic entering of sleep mode.
Good luck!

Performance issue - application running on front

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