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  • facescontext.getcurrentinstance returns nullpointerexception

    - by mvg
    I am creating a Spring based JSF application, where I am getting FacesContext.getCurrentInstance which returns null. Here is my Java code public static ServletContext getServletContext() { return (ServletContext) FacesContext.getCurrentInstance() .getExternalContext().getContext(); } This is the stack trace of my error SEVERE: Exception sending context initialized event to listener instance of class org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dbSettingsServiceTarget' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.baytalkitec.smartcall.service.impl.DbSettingsServiceImpl]: Constructor threw exception; nested exception is java.lang.NullPointerException at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:883) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:839) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:440) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409) at java.security.AccessController.doPrivileged(Native Method) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:729) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:381) at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3972) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4467) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardHost.start(StandardHost.java:785) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) at org.apache.catalina.core.StandardService.start(StandardService.java:519) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:581) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414) Caused by: org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.baytalkitec.smartcall.service.impl.DbSettingsServiceImpl]: Constructor threw exception; nested exception is java.lang.NullPointerException at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:115) at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:61) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:877) ... 31 more Caused by: java.lang.NullPointerException at com.smartcall.util.FacesUtil.getServletContext(FacesUtil.java:21) at com.smartcall.util.SpringApplicationContextUtil.init(SpringApplicationContextUtil.java:21) at com.smartcall.util.SpringApplicationContextUtil.<init>(SpringApplicationContextUtil.java:16) at com.smartcall.service.impl.DbSettingsServiceImpl.init(DbSettingsServiceImpl.java:17) at com.smartcall.service.impl.DbSettingsServiceImpl.<init>(DbSettingsServiceImpl.java:12) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:100) ... 33 more and hence due to this error Server console in Eclipse reports that application failed to startup due to previous errors My web.xml file <?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>smartcall2.0</display-name> <context-param> <param-name>javax.faces.STATE_SAVING_METHOD</param-name> <param-value>server</param-value> </context-param> <context-param> <param-name>javax.faces.CONFIG_FILES</param-name> <param-value> /WEB-INF/faces-config.xml,/WEB-INF/faces-managed-bean.xml,/WEB-INF/faces-navigation.xml </param-value> </context-param> <listener> <listener-class> com.sun.faces.config.ConfigureListener </listener-class> </listener> <listener> <listener-class> org.springframework.web.context.ContextLoaderListener </listener-class> </listener> <filter> <display-name>RichFaces Filter</display-name> <filter-name>richfaces</filter-name> <filter-class>org.ajax4jsf.Filter</filter-class> </filter> <filter-mapping> <filter-name>richfaces</filter-name> <servlet-name>Faces Servlet</servlet-name> <dispatcher>REQUEST</dispatcher> <dispatcher>FORWARD</dispatcher> <dispatcher>INCLUDE</dispatcher> </filter-mapping> <servlet> <servlet-name>Faces Servlet</servlet-name> <servlet-class>javax.faces.webapp.FacesServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <context-param> <param-name>javax.faces.DEFAULT_SUFFIX</param-name> <param-value>.xhtml</param-value> </context-param> <servlet-mapping> <servlet-name>Faces Servlet</servlet-name> <url-pattern>*.jsf</url-pattern> </servlet-mapping> <session-config> <session-timeout>180</session-timeout> </session-config> <welcome-file-list> <welcome-file>index.html</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> I am not clear whether this error belongs to Spring or JSF or Eclipse. I am using Eclipse Galileo, JSF 1.2,Spring 3 Please help Thanks in advance

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  • Natural Language Processing in Ruby

    - by Joey Robert
    I'm looking to do some sentence analysis (mostly for twitter apps) and infer some general characteristics. Are there any good natural language processing libraries for this sort of thing in Ruby? Similar to http://stackoverflow.com/questions/870460/java-is-there-a-good-natural-language-processing-library but for Ruby. I'd prefer something very general, but any leads are appreciated!

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  • Dynamically refresh JTextArea as processing occurs?

    - by digiarnie
    I am trying to create a very simple Swing UI that logs information onto the screen via a JTextArea as processing occurs in the background. When the user clicks a button, I want each call to: textArea.append(someString + "\n"); to immediately show up in the UI. At the moment, the JTextArea does not show all log information until the processing has completed after clicking the button. How can I get it to refresh dynamically?

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  • Definition of Connect, Processing, Waiting in apache bench.

    - by rpatel
    When I run apache bench I get results like: Command: abs.exe -v 3 -n 10 -c 1 https://mysite Connection Times (ms) min mean[+/-sd] median max Connect: 203 213 8.1 219 219 Processing: 78 177 88.1 172 359 Waiting: 78 169 84.6 156 344 Total: 281 389 86.7 391 563 I can't seem to find the definition of Connect, Processing and Waiting. What do those numbers mean?

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  • Spreadsheet formula: lowest 100 values in a range

    - by Justin Lawrence
    Is there any way I could sum up the lowest 100 values within a range? I know that min() would give you the lowest value but i need something to return the 100 lowest values. I just used 100 hypothetically to make it easier to understand what I'm trying to achieve. I can use any of the following spreadsheet apps: Openoffice.org, Excel or Google Spreadsheets -- whichever works. Thanks a lot!!!

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  • Set CSV import default to UTF-8 in Calc

    - by picca
    Every time I open a CSV (comma separated values) document in OpenOffice.org Calc I get a dialog with CSV preferences. The current default character set is "Eastern Europe (ISO-8859-2)". I would like "UTF-8" to be selected by default instead.

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  • how to upgrade to openoffice 3.1.1 on ubuntu jaunty

    - by BD at Rivenhill
    I need to read some .docx files and the standard 3.0.1 version of OpenOffice writer that comes with Unbuntu 9.04 just ain't handling it. I tried the instructions from the following site: http://news.softpedia.com/news/How-to-Install-OpenOffice-org-3-1-on-Ubuntu-9-04-111105.shtml, both the GUI steps in the main article, and a scripted version in one of the comments, but my system never seems to do the partial update, and the OpenOffice version is unchanged after I uninstall and reinstall it from the command line. Has anybody had similar problems?

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  • Dynamically Changing the Display Names of Menus and Popups

    - by Geertjan
    Very interesting thing and handy to know when needed is the fact that "menuText" and "popupText" (from org.openide.awt.ActionRegistration) can be changed dynamically, via "putValue" as shown below for "popupText". The Action class, in this case, needs to be eager, hence you won't receive the object of interest via the constructor, but you can easily use the global Lookup for that purpose instead, as also shown below. import java.awt.event.ActionEvent; import java.text.DateFormat; import java.text.SimpleDateFormat; import javax.swing.AbstractAction; import org.netbeans.api.project.Project; import org.netbeans.api.project.ProjectInformation; import org.netbeans.api.project.ProjectUtils; import org.openide.awt.ActionID; import org.openide.awt.ActionReference; import org.openide.awt.ActionRegistration; import org.openide.util.Utilities; @ActionID( category = "Project", id = "org.ptt.DemoProjectAction") @ActionRegistration( lazy = false, displayName = "NOT-USED") @ActionReference(path = "Projects/Actions", position = 0) public final class DemoProjectAction extends AbstractAction{ private final ProjectInformation context; public DemoProjectAction() { putValue("popupText", "Select Me To See Current Time!"); context = ProjectUtils.getInformation( Utilities.actionsGlobalContext().lookup(Project.class)); } @Override public void actionPerformed(ActionEvent e) { refresh(); } protected void refresh() { DateFormat formatter = new SimpleDateFormat("HH:mm:ss"); String formatted = formatter.format(System.currentTimeMillis()); putValue("popupText", "Time: " + formatted + " (" + context.getDisplayName() +")"); } } Now, let's do something semi useful and display, in the popup, which is available when you right-click a project, the time since the last change was made anywhere in the project, i.e., we can listen recursively to any changes done within a project and then update the popup with the newly acquired information, dynamically: import java.awt.event.ActionEvent; import java.text.DateFormat; import java.text.SimpleDateFormat; import javax.swing.AbstractAction; import org.netbeans.api.project.Project; import org.netbeans.api.project.ProjectUtils; import org.openide.awt.ActionID; import org.openide.awt.ActionReference; import org.openide.awt.ActionRegistration; import org.openide.filesystems.FileAttributeEvent; import org.openide.filesystems.FileChangeListener; import org.openide.filesystems.FileEvent; import org.openide.filesystems.FileRenameEvent; import org.openide.util.Utilities; @ActionID( category = "Project", id = "org.ptt.TrackProjectTimerAction") @ActionRegistration( lazy = false, displayName = "NOT-USED") @ActionReference( path = "Projects/Actions", position = 0) public final class TrackProjectTimerAction extends AbstractAction implements FileChangeListener { private final Project context; private Long startTime; private Long changedTime; private DateFormat formatter; public TrackProjectTimerAction() { putValue("popupText", "Enable project time tracker"); this.formatter = new SimpleDateFormat("HH:mm:ss"); context = Utilities.actionsGlobalContext().lookup(Project.class); context.getProjectDirectory().addRecursiveListener(this); } @Override public void actionPerformed(ActionEvent e) { startTimer(); } protected void startTimer() { startTime = System.currentTimeMillis(); String formattedStartTime = formatter.format(startTime); putValue("popupText", "Timer started: " + formattedStartTime + " (" + ProjectUtils.getInformation(context).getDisplayName() + ")"); } @Override public void fileChanged(FileEvent fe) { changedTime = System.currentTimeMillis(); formatter = new SimpleDateFormat("mm:ss"); String formattedLapse = formatter.format(changedTime - startTime); putValue("popupText", "Time since last change: " + formattedLapse + " (" + ProjectUtils.getInformation(context).getDisplayName() + ")"); startTime = changedTime; } @Override public void fileFolderCreated(FileEvent fe) {} @Override public void fileDataCreated(FileEvent fe) {} @Override public void fileDeleted(FileEvent fe) {} @Override public void fileRenamed(FileRenameEvent fre) {} @Override public void fileAttributeChanged(FileAttributeEvent fae) {} }

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  • Very long (>300s) request processing time on Apache Server serving static content from particular IP

    - by Ron Bieber
    We are running an Apache 2.2 server for a very large web site. Over the past few months we have been having some users reporting slow response times, while others (including our resources, both on the internal network and our home networks) do not see any degradation in performance. After a ton of investigation, we finally found a "Deny from none" statement in our configuration that was causing reverse DNS lookups (which were timing out) that solved the bulk of our issues, but we still have some customers that we are seeing in the Apache logs (using %D in the log format) with request processing times of 300s for images, css, javascript and other static content. We've checked all Deny / Allow statements for reoccurrence of "none", as well as all other things we know of that would cause reverse DNS lookups (such as using "REMOTE_HOST" in rewrite rules, using %a instead of %h in our log format configuration) as well as verified that HostnameLookups is set to "Off". As an aside, we've also validated that reverse DNS lookups for folks having this problem do not time out - so I'm fairly certain DNS is not an issue in this case. I've run out of ideas. Are there any Apache configuration scenarios that someone can point me to that I might be missing that would cause request times for static content to take so long only for certain users? Thank you in advance.

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  • .NET not processing an XML file in IIS

    - by Stuart McIntosh
    We have 2 servers, 1 already configured with .net which works fine and a new one which appears to be configured the same but when I open an xml page in Internet Explorer it complains about the <% tag. We have IIS on win srvr 2003 SP2. The website is configured with .NET 1.1.4322. In ISAPI extensions have set the .XML extension to use c:\windows\microsoft.net\framework\v1.1.4322\aspnet_isapi.dll But the page: <property name="documentmaxage" value="0"/> <property name="documentmaxstale" value="0"/> <var name="m_Prompt_Path" /> <form id="InitVoiceXmlDoc"> <block> <assign name="m_Prompt_Path" expr="&quot;<% Response.Write(Request.QueryString["m_Prompt_Path"]); %>&quot;"/> </block> </form> gives the error: The XML page cannot be displayed Cannot view XML input using XSL style sheet. Please correct the error and then click the Refresh button, or try again later. The character '<' cannot be used in an attribute value. Error processing resource 'http://localhost:11119/fails.xml'. Lin... &quo... We have the same config on another server which works fine. So are there other options apart from the ISAPI extensions that I need to look at. If I suffix the page .aspx, of course it works fine.

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  • Server overloaded: DBCP issue on Mysql.

    - by taras
    Hi, I have 2 setups tomcat5.5.20 on Redhat and mysql 4.1.22 on another Redhat server. Recently i started getting the repeating error(each seconds) in catalina.out: DBCP object created 2010-12-22 13:33:12 by the following code was never closed: java.lang.Exception at org.apache.tomcat.dbcp.dbcp.AbandonedTrace.init(AbandonedTrace.java:96) at org.apache.tomcat.dbcp.dbcp.AbandonedTrace.(AbandonedTrace.java:79) at org.apache.tomcat.dbcp.dbcp.DelegatingResultSet.(DelegatingResultSet.java:71) at org.apache.tomcat.dbcp.dbcp.DelegatingResultSet.wrapResultSet(DelegatingResultSet.java:80) at org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:92) at org.apache.jsp.external_005fpage.signup_jsp._jspService(signup_jsp.java:1185) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:199) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:282) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697) at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Thread.java:595) i have to restart tomcat once a day when server load reaches 80-90%. Also catalina.out file is growing too fast which every few hours need to clear the logs. My datasource config: <bean id="myDataSource" class="org.apache.tomcat.dbcp.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName"> <value>com.mysql.jdbc.Driver</value> </property> jdbc:mysql://XXX/XXX?autoReconnect=true 20 20 <property name="maxIdle"> <value>50</value> </property> <property name="maxActive"> <value>50</value> </property> <property name="removeAbandoned"> <value>false</value> </property> <property name="removeAbandonedTimeout"> <value>2400</value> </property> <property name="username"> <value>XXX</value> </property> <property name="password"> <value>XXX</value> </property> </bean> Any idea what can be the issue ? Thanks for any direction.

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  • Jsystem AutoITAgent does not work - java.lang.NoClassDefFoundError: org/apache/xmlrpc/WebServer

    - by lasombra
    Even so the jar files exists and are in the correct folder, I get the NoClassDefFoundError. Why? What I am doing wrong? The Classpath definition is .\thirdparty\lib\;C:\jsystem\runner\lib\ant-jsystem.jar;C:jsystem\runner\lib\cli.jar;C:\jsystem\runner\lib\commons-logging-1.1.jar;C:\jsystem\runner\lib\embeddedCatalina.jar;C:\jsystem\runner\lib\fileParser.jar;C:\jsystem\runner\lib\filetransfer.jar;C:\jsystem\runner\lib\j2autoit.jar;C:\jsystem\runner\lib\jsystem-launcher.jar;C:\jsystem\runner\lib\jsystemAgent.jar;C:\jsystem\runner\lib\jsystemApp.jar;C:\jsystem\runner\lib\jsystemCommon.jar;C:\jsystem\runner\lib\jsystemCore.jar;C:\jsystem\runner\lib\snmp.jar;C:\jsystem\runner\lib\stations.jar;C:\jsystem\runner\lib\swing.jar;C:\jsystem\runner\lib\tcl.jar;C:\jsystem\runner\lib\vbshell.jar;C:\jsystem\runner\lib\web.jar;C:\jsystem\runner\lib\wget.jar; C:\jsystem\runner\lib\xmlrpc-client-3.1.3.jar; C:\jsystem\runner\lib\xmlrpc-common-3.1.3.jar; C:\jsystem\runner\lib\xmlrpc-server-3.1.3.jar; C:\jsystem\runner\lib\j2autoit\j2autoit.jar C:\jsystem\runner Setting J2AutoIt Agent to use the port: 8888 Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/xmlrpc/WebServer at com.jsystem.j2autoit.AutoItAgent.startAutoItWebServer(AutoItAgent.java:665) at com.jsystem.j2autoit.AutoItAgent.main(AutoItAgent.java:348) Caused by: java.lang.ClassNotFoundException: org.apache.xmlrpc.WebServer at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClassInternal(Unknown Source) ... 2 more

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  • Node.js vs PHP processing speed

    - by Cody Craven
    I've been looking into node.js recently and wanted to see a true comparison of processing speed for PHP vs Node.js. In most of the comparisons I had seen, Node trounced Apache/PHP set ups handily. However all of the tests were small 'hello worlds' that would not accurately reflect any webpage's markup. So I decided to create a basic HTML page with 10,000 hello world paragraph elements. In these tests Node with Cluster was beaten to a pulp by PHP on Nginx utilizing PHP-FPM. So I'm curious if I am misusing Node somehow or if Node is really just this bad at processing power. Note that my results were equivalent outputting "Hello world\n" with text/plain as the HTML, but I only included the HTML as it's closer to the use case I was investigating. My testing box: Core i7-2600 Intel CPU (has 8 threads with 4 cores) 8GB DDR3 RAM Fedora 16 64bit Node.js v0.6.13 Nginx v1.0.13 PHP v5.3.10 (with PHP-FPM) My test scripts: Node.js script var cluster = require('cluster'); var http = require('http'); var numCPUs = require('os').cpus().length; if (cluster.isMaster) { // Fork workers. for (var i = 0; i < numCPUs; i++) { cluster.fork(); } cluster.on('death', function (worker) { console.log('worker ' + worker.pid + ' died'); }); } else { // Worker processes have an HTTP server. http.Server(function (req, res) { res.writeHead(200, {'Content-Type': 'text/html'}); res.write('<html>\n<head>\n<title>Speed test</title>\n</head>\n<body>\n'); for (var i = 0; i < 10000; i++) { res.write('<p>Hello world</p>\n'); } res.end('</body>\n</html>'); }).listen(80); } This script is adapted from Node.js' documentation at http://nodejs.org/docs/latest/api/cluster.html PHP script <?php echo "<html>\n<head>\n<title>Speed test</title>\n</head>\n<body>\n"; for ($i = 0; $i < 10000; $i++) { echo "<p>Hello world</p>\n"; } echo "</body>\n</html>"; My results Node.js $ ab -n 500 -c 20 http://speedtest.dev/ This is ApacheBench, Version 2.3 <$Revision: 655654 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking speedtest.dev (be patient) Completed 100 requests Completed 200 requests Completed 300 requests Completed 400 requests Completed 500 requests Finished 500 requests Server Software: Server Hostname: speedtest.dev Server Port: 80 Document Path: / Document Length: 190070 bytes Concurrency Level: 20 Time taken for tests: 14.603 seconds Complete requests: 500 Failed requests: 0 Write errors: 0 Total transferred: 95066500 bytes HTML transferred: 95035000 bytes Requests per second: 34.24 [#/sec] (mean) Time per request: 584.123 [ms] (mean) Time per request: 29.206 [ms] (mean, across all concurrent requests) Transfer rate: 6357.45 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 0 0 0.2 0 2 Processing: 94 547 405.4 424 2516 Waiting: 0 331 399.3 216 2284 Total: 95 547 405.4 424 2516 Percentage of the requests served within a certain time (ms) 50% 424 66% 607 75% 733 80% 813 90% 1084 95% 1325 98% 1843 99% 2062 100% 2516 (longest request) PHP/Nginx $ ab -n 500 -c 20 http://speedtest.dev/test.php This is ApacheBench, Version 2.3 <$Revision: 655654 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking speedtest.dev (be patient) Completed 100 requests Completed 200 requests Completed 300 requests Completed 400 requests Completed 500 requests Finished 500 requests Server Software: nginx/1.0.13 Server Hostname: speedtest.dev Server Port: 80 Document Path: /test.php Document Length: 190070 bytes Concurrency Level: 20 Time taken for tests: 0.130 seconds Complete requests: 500 Failed requests: 0 Write errors: 0 Total transferred: 95109000 bytes HTML transferred: 95035000 bytes Requests per second: 3849.11 [#/sec] (mean) Time per request: 5.196 [ms] (mean) Time per request: 0.260 [ms] (mean, across all concurrent requests) Transfer rate: 715010.65 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 0 0 0.2 0 1 Processing: 3 5 0.7 5 7 Waiting: 1 4 0.7 4 7 Total: 3 5 0.7 5 7 Percentage of the requests served within a certain time (ms) 50% 5 66% 5 75% 5 80% 6 90% 6 95% 6 98% 6 99% 6 100% 7 (longest request) Additional details Again what I'm looking for is to find out if I'm doing something wrong with Node.js or if it is really just that slow compared to PHP on Nginx with FPM. I certainly think Node has a real niche that it could fit well, however with these test results (which I really hope I made a mistake with - as I like the idea of Node) lead me to believe that it is a horrible choice for even a modest processing load when compared to PHP (let alone JVM or various other fast solutions). As a final note, I also tried running an Apache Bench test against node with $ ab -n 20 -c 20 http://speedtest.dev/ and consistently received a total test time of greater than 0.900 seconds.

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  • org.hibernate.NonUniqueObjectException Within GWT application using hibernate through gilead

    - by molleman
    Hello Guys, i am working on a project for college that uses GWT,Hibernate and Gilead. Basically for the moment users should be able to add friends and remove them. also a user can see if his or her friends are online or not. my trouble is that when i add a friend that is already related to another friend i get this error org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [com.example.client.YFUser#4] i have a service class public class TestServiceImpl extends PersistentRemoteService implements TestService { this is my service class for my gwt application. my toruble is here with my implmentation class of my serivce in this method that is called when a user presses add friend button on the client-side public void addYFUserFriend(String userName){ //this retrieves the current user YFUser user = (YFUser)getSession().getAttribute(SESSION_USER); Session session = com.example.server.HibernateUtil.getSessionFactory().getCurrentSession(); session.beginTransaction(); YFUser friend = (YFUser) session.createQuery("select u FROM YFUser u where u.username = :username").setParameter("username", userName).uniqueResult(); System.out.println("user " + friend.getUsername() + " Found"); user.getFriends().add(friend); friend.getBefriended().add(user); session.update(user); session.update(friend); session.getTransaction().commit(); } a scenerio : user1 adds user2 as a friend. this works fine. then user3 adds user2 and the exeception is thrown. any ideas why and where my logic is going wrong Ok so i have changed my code, and i have removed all the getCurrentASession() calls and replaced with openSession() call which are closed at the appropiate point, now the error i am getting is com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract void com.example.client.TestService.addYFUserFriend(java.lang.String)' threw an unexpected exception: org.hibernate.NonUniqueResultException: query did not return a unique result: 3

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  • java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory

    - by Sanjeev
    I am using My-eclipse and doing a struts project there is no syntax error but on starting tomcat server the following error appear in console. java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory and javax.servlet.UnavailableException: Parsing error processing resource path jndi:/localhost/strutspro/WEB-INF/struts-config.xml any idea whats the problem.

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  • How to recover dpkg from corrupted downloads?

    - by rocker9455
    I just upgraded to the 10.10 RC earlier and had a few problems with graphic drivers (x didnt start) But i have remedied that now. When i run 'sudo apt-get install -f' i get this: will@UbuntuBox:/mnt/slax$ sudo apt-get install -f [sudo] password for will: Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following extra packages will be installed: libmono-wcf3.0-cil openoffice.org-calc openoffice.org-core The following NEW packages will be installed: libmono-wcf3.0-cil The following packages will be upgraded: openoffice.org-calc openoffice.org-core 2 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. 16 not fully installed or removed. Need to get 0B/32.5MB of archives. After this operation, 1,929kB disk space will be freed. Do you want to continue [Y/n]? Y (Reading database ... 201565 files and directories currently installed.) Preparing to replace openoffice.org-calc 1:3.2.1-6ubuntu2~10.04.1 (using .../openoffice.org-calc_1%3a3.2.1-7ubuntu1_i386.deb) ... Unpacking replacement openoffice.org-calc ... xz: (stdin): Compressed data is corrupt dpkg-deb: subprocess <decompress> returned error exit status 1 dpkg: error processing /var/cache/apt/archives/openoffice.org-calc_1%3a3.2.1-7ubuntu1_i386.deb (--unpack): short read on buffer copy for backend dpkg-deb during `./usr/lib/openoffice/basis3.2/program/libscfiltli.so' dpkg: regarding .../openoffice.org-core_1%3a3.2.1-7ubuntu1_i386.deb containing openoffice.org-core: openoffice.org-core conflicts with openoffice.org-calc (<< 1:3.2.1-7ubuntu1) openoffice.org-calc (version 1:3.2.1-6ubuntu2~10.04.1) is present and installed. dpkg: error processing /var/cache/apt/archives/openoffice.org-core_1%3a3.2.1-7ubuntu1_i386.deb (--unpack): conflicting packages - not installing openoffice.org-core Unpacking libmono-wcf3.0-cil (from .../libmono-wcf3.0-cil_2.6.7-3ubuntu1_all.deb) ... dpkg-deb (subprocess): data: internal gzip read error: '<fd:0>: data error' dpkg-deb: subprocess <decompress> returned error exit status 2 dpkg: error processing /var/cache/apt/archives/libmono-wcf3.0-cil_2.6.7-3ubuntu1_all.deb (--unpack): subprocess dpkg-deb --fsys-tarfile returned error exit status 2 Errors were encountered while processing: /var/cache/apt/archives/openoffice.org-calc_1%3a3.2.1-7ubuntu1_i386.deb /var/cache/apt/archives/openoffice.org-core_1%3a3.2.1-7ubuntu1_i386.deb /var/cache/apt/archives/libmono-wcf3.0-cil_2.6.7-3ubuntu1_all.deb E: Sub-process /usr/bin/dpkg returned an error code (1) Any idea how i can get the broken packages fixed? Cheers, Will

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  • Reminder: For a Complete View Of Your Concurrent Processing Take A Look At The CP Analyzer!

    - by LuciaC
    For a complete view of your Concurrent Processing take a look at the CP Analyzer!  Doc ID 1411723.1 has the script to download and a 9 min video. The Concurrent Processing Analyzer is a Self-Service Health-Check script which reviews the overall Concurrent Processing Footprint, analyzes the current configurations and settings for the environment providing feedback and recommendations on Best Practices.This is a non-invasive script which provides recommended actions to be performed on the instance it was run on.  For production instances, always apply any changes to a recent clone to ensure an expected outcome. E-Business Applications Concurrent Processing Analyzer Overview E-Business Applications Concurrent Request Analysis E-Business Applications Concurrent Manager Analysis Identifies Concurrent System Setup and configurations Identifies and recommends Concurrent Best Practices Easy to add Tool for regular Concurrent Maintenance Execute Analysis anytime to compare trending from past outputs Feedback welcome!

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  • I have domain.com and domain.org to the same site, should I use redirects to avoid duplicate content

    - by bunzip
    I have both the .com and the .org for a domain name, and using Apache I point them to the same site content. I think this might be causing problems with the Search Engines because of duplicate content. I want the .org to be the essential website. How do others handle this situation? Should I be using 301 redirects to point all the .com requests to the .org? Should I just use the link rel="canonical" on each page to point to the .org?

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  • Are there any inline code validation libraries available for something similar to TryRuby.org or CodeSchool.com? [closed]

    - by Forkrul Assail
    Recently a lot of browser-based training sites have been spawned. These include tryruby.org, codeacademy.org, codeschool.org and the Udacity site uses something seemingly similar. They allow the user to type code in say Ruby or Python, this is then sent to the server and the output posted back to the browser. Are there libraries available for in-browser code validation? How would you approach this? Suggestions?

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  • Asynchronous daemon processing / ORM interaction with Django

    - by perrierism
    I'm looking for a way to do asynchronous data processing with a daemon that uses Django ORM. However, the ORM isn't thread-safe; it's not thread-safe to try to retrieve / modify django objects from within threads. So I'm wondering what the correct way to achieve asynchrony is? Basically what I need to accomplish is taking a list of users in the db, querying a third party api and then making updates to user-profile rows for those users. As a daemon or background process. Doing this in series per user is easy, but it takes too long to be at all scalable. If the daemon is retrieving and updating the users through the ORM, how do I achieve processing 10-20 users at a time? I would use a standard threading / queue system for this but you can't thread interactions like models.User.objects.get(id=foo) ... Django itself is an asynchronous processing system which makes asynchronous ORM calls(?) for each request, so there should be a way to do it? I haven't found anything in the documentation so far. Cheers

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  • C# Process Binary File, Multi-Thread Processing

    - by washtik
    I have the following code that processes a binary file. I want to split the processing workload by using threads and assigning each line of the binary file to threads in the ThreadPool. Processing time for each line is only small but when dealing with files that might contain hundreds of lines, it makes sense to split the workload. My question is regarding the BinaryReader and thread safety. First of all, is what I am doing below acceptable. I have a feeling it would be better to pass only the binary for each line to the PROCESS_Binary_Return_lineData method. Please note the code below is conceptual. I looking for a but of guidance on this as my knowledge of multi-threading is in its infancy. Perhaps there is a better way to achieve the same result, i.e. split processing of each binary line. var dic = new Dictionary<DateTime, Data>(); var resetEvent = new ManualResetEvent(false); using (var b = new BinaryReader(File.Open(Constants.dataFile, FileMode.Open, FileAccess.Read, FileShare.Read))) { var lByte = b.BaseStream.Length; var toProcess = 0; while (lByte >= DATALENGTH) { b.BaseStream.Position = lByte; lByte = lByte - AB_DATALENGTH; ThreadPool.QueueUserWorkItem(delegate { Interlocked.Increment(ref toProcess); var lineData = PROCESS_Binary_Return_lineData(b); lock(dic) { if (!dic.ContainsKey(lineData.DateTime)) { dic.Add(lineData.DateTime, lineData); } } if (Interlocked.Decrement(ref toProcess) == 0) resetEvent.Set(); }, null); } } resetEvent.WaitOne();

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  • HTTP 500 ERROR on CAS Server while setting SSLVerifyClent as "required"

    - by Huiyu.Bird
    I have 3 servers, a Apache Server, a JBOSS Server and a CAS Server for SSO. The Apache Server resolve all request with a domain such as www.request.com, and the path of CAS Server is www.request.com/cas, and JBOSS Server is www.request.com/jboss (This app got a CAS client). My problem is if I set SSLVerifyClient require for the NameVirtualHost of www.request.com in my Apache Server, I got a HTTP 500 error during the redirecting to the JBOSS Server(http://www.request.com/jboss), after logined in the CAS login page successfully. But everything goes successfully if there is no SSLVerifyClient require . Error logs of my Apache Server : [Mon Apr 19 17:07:25 2010] [error] Re-negotiation handshake failed: Not accepted by client!? Error logs of my JBOSS Server : 2010-04-19 17:29:57,263 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/jboss].[jsp]] (ajp-0.0.0.0-8009-1) Servlet.service() for servlet jsp threw exception org.jasig.cas.client.validation.TicketValidationException: The CAS server returned no response. at org.jasig.cas.client.validation.AbstractUrlBasedTicketValidator.validate(AbstractUrlBasedTicketValidator.java:162) at org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:129) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jasig.cas.client.authentication.AuthenticationFilter.doFilter(AuthenticationFilter.java:103) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jasig.cas.client.session.SingleSignOutFilter.doFilter(SingleSignOutFilter.java:78) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.in Any tips will be highly appreciated. Thanks in advance.

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  • Problem in installing OpenOffice 3.1 on Solaris 10

    - by Sunil Kumar Sahoo
    I want OpenOffice in Solaris. So I downloaded OpenOffice from the link below. http://download.openoffice.org/other.html#tested-full My OpenOffice is in .tar.gz format so I unzipped the file using gunzip and then untar'ed the file using tar xvf command. Now I got a directory containing packages subfolder. When I cd to that directory I found too many subdirectories. I could not find a single .pkg file or .jar file or .sh file so that I can install the OpenOffice in Solaris 10. How can I install OpenOffice in Solaris 10 given the scenario above?

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