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  • Linux core dumps are too large!

    - by themoondothshine
    Hey guys, Recently I've been noticing an increase in the size of the core dumps generated by my application. Initially, they were just around 5MB in size and contained around 5 stack frames, and now I have core dumps of 2GBs and the information contained within them are no different from the smaller dumps. Is there any way I can control the size of core dumps generated? Shouldn't they be at least smaller than the application binary itself? Binaries are compiled in this way: Compiled in release mode with debug symbols (ie, -g compiler option in GCC). Debug symbols are copied onto a separate file and stripped from the binary. A GNU debug symbols link is added to the binary. At the beginning of the application, there's a call to setrlimit which sets the core limit to infinity -- Is this the problem?

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  • How to add database layer in core data application

    - by aditya
    Hi all I am fairly new to core data technology and i searched a lot on how to add the database to a core data application.so can anybody guide me on how to integrate the database layer? i have seen the iphone tutorial on core data (i.e books example) but i am not able to understand how to .sqlite file has been included in that application

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  • Activation context generation failed for "C:\php\php-cgi.exe". Dependent Assembly

    - by Eyla
    Greeting, I have Windows Server 2008 Server Core. I want to configure this server to host php websites using IIS 7. I installed and configured IIS7 to run php using the steps in this website: http://blogs.msdn.com/b/philpenn/archive/2009/07/19/deploying-iis-7-5-fastcgi-php-on-server-core.aspx Now I’m facing a problem that when I request my php website I would get this error. Server Error 500 - Internal server error. There is a problem with the resource you are looking for, and it cannot be displayed. I check the even log and I found these details too: Activation context generation failed for "C:\php\php-cgi.exe". Dependent Assembly Microsoft.VC90.CRT,processorArchitecture="x86",publicKeyToken="1fc8b3b9a1e18e3b",type="win32",version="9.0.21022.8" could not be found. Please use sxstrace.exe for detailed diagnosis. I search about this error and I found a solution for it but which is to install Microsoft Visual C++ 2008 SP1 Redistributable Package (x86). I installed but still I’m getting same error. Please help me to solve this problem and let me know if you want to know more info about my issue.

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  • I need help choosing between two configurations of the Dell Studio 14

    - by Adnan
    There are two configurations of the Dell Studio 14 (1458) which I'm looking at: Config 1: Core i7-720QM @ 1.6 GHz; ATI Mobility Radeon HD 5450 1GB; 4gb DDR3 RAM @ 1066 MHz; 500 GB SATA HDD @ 7200 RPM; Price: $999 Config 2: Core i5-430M; ATI Mobility Radeon HD 4530 512MB; 4GB DDR3 RAM @ 1066 MHz; 500 GV SATA HDD @ 7200 RPM; Price: $874 What I want to know is, would config 1 still be able to do decent gaming (maybe some Starcraft II), and is there a great performance difference between the i5 and i7 processors? Is the $130 extra worth it for the i7 and better graphics card? I do more than just basic computing. I plan on getting into web design (specifically using Photoshop and Dreamweaver), and I wish to do gaming. I know Conifg 1 is the better value, but I want to be sure that the $130 more is truly worth it. I dont have too much money and want to spend wisely as possible, yet I am a computer geek and plan on doing a lot more than the average user.

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  • Solr DataImportHandler configuration

    - by talo
    I want to get data from mysql database with the help of DataImportHandler so i can create indexes. Now I've configured my Solr instance so that it works on Tomcat (the example admin page), but if I try to change the sorlconfig.xml file i'll get the error message. I'm working with Solr 3.6 So my configuration is: In solrconfig.xml i added: <dataDir>${solr.data.dir:/usr/share/tomcat7/solr2}</dataDir> to specify my working directory and then <requestHandler name="/dataimport" class="org.apache.solr.handler.dataimport.DataImportHandler"> <lst name="defaults"> <str name="config">/usr/share/tomcat7/solr2/conf/data-config.xml</str> </lst> </requestHandler> to specify new request handler. Theese two are my lib directives for DIH. Do i need to change them? <lib dir="../../dist/" regex="apache-solr-dataimporthandler-\d.*\.jar" /> <lib dir="../../contrib/dataimporthandler/lib/" regex=".*\.jar" /> I also created data-config.xml file and added following: <?xml version="1.0" encoding="UTF-8"?> <dataConfig> <dataSource type="JdbcDataSource" driver="com.mysql.jdbc.Driver" url="jdbc:mysql://localhost:3306/ethicsweb_experts" user="root" password=""/> <document> <entity name="experts" datasource="mysql" pk="mainid" query="SELECT experts.mainid as mainid FROM experts WHERE validRec = 'y'"> <field column="mainid" name="mainid"/> <field column="validRec" name="validRec"/> </entity> </document> I've coppied following jars to tomcat/lib folder (DIH jar files and mysql JDBC connector jar file) apache-solr-dataimporthandler-3.6.0.jar apache-solr-dataimporthandler-extras-3.6.0.jar mysql-connector-java-5.1.20-bin.jar Also in the schema.xml file i added folowing fields: <field name="mainid" type="int" indexed="true" stored="true" /> <field name="validRec" type="string" indexed="true" stored="true" /> <field name="recSource" type="string" indexed="true" stored="true" /> <uniqueKey>mainid</uniqueKey> But now when i try to acces: http://localhost:8080/solr2/ I get following output: HTTP Status 500 - Severe errors in solr configuration. Check your log files for more detailed information on what may be wrong. If you want solr to continue after configuration errors, change: false in solr.xml ------------------------------------------------------------- org.apache.solr.common.SolrException: No cores were created, please check the logs for errors at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:172) at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:96) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:277) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382) at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:103) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4638) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5294) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) ------------------------------------------------------------- java.lang.NoClassDefFoundError: org/apache/solr/util/plugin/SolrCoreAware at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:791) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) at java.net.URLClassLoader.access$100(URLClassLoader.java:71) at java.net.URLClassLoader$1.run(URLClassLoader.java:361) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1698) at java.lang.ClassLoader.loadClass(ClassLoader.java:410) at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:789) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:378) at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:419) at org.apache.solr.core.SolrCore.createRequestHandler(SolrCore.java:455) at org.apache.solr.core.RequestHandlers.initHandlersFromConfig(RequestHandlers.java:159) at org.apache.solr.core.SolrCore.(SolrCore.java:563) at org.apache.solr.core.CoreContainer.create(CoreContainer.java:483) at org.apache.solr.core.CoreContainer.load(CoreContainer.java:335) at org.apache.solr.core.CoreContainer.load(CoreContainer.java:219) at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:161) at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:96) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:277) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382) at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:103) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4638) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5294) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) Caused by: java.lang.ClassNotFoundException: org.apache.solr.util.plugin.SolrCoreAware at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) ... 47 more My log entries show me that: SEVERE: java.lang.NoClassDefFoundError: org/apache/solr/util/plugin/SolrCoreAware at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:791) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) at java.net.URLClassLoader.access$100(URLClassLoader.java:71) at java.net.URLClassLoader$1.run(URLClassLoader.java:361) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1698) at java.lang.ClassLoader.loadClass(ClassLoader.java:410) at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:789) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:378) at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:419) at org.apache.solr.core.SolrCore.createRequestHandler(SolrCore.java:455) at org.apache.solr.core.RequestHandlers.initHandlersFromConfig(RequestHandlers.java:159) at org.apache.solr.core.SolrCore.(SolrCore.java:563) at org.apache.solr.core.CoreContainer.create(CoreContainer.java:483) at org.apache.solr.core.CoreContainer.load(CoreContainer.java:335) at org.apache.solr.core.CoreContainer.load(CoreContainer.java:219) at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:161) at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:96) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:277) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382) at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:103) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4638) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5294) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) Caused by: java.lang.ClassNotFoundException: org.apache.solr.util.plugin.SolrCoreAware at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) ... 47 more Jun 15, 2012 4:07:50 PM org.apache.solr.servlet.SolrDispatchFilter init SEVERE: Could not start Solr. Check solr/home property and the logs org.apache.solr.common.SolrException: No cores were created, please check the logs for errors at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:172) at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:96) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:277) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382) at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:103) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4638) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5294) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) Jun 15, 2012 4:07:50 PM org.apache.solr.common.SolrException log SEVERE: org.apache.solr.common.SolrException: No cores were created, please check the logs for errors at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:172) at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:96) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:277) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382) at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:103) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4638) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5294) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) So now I wonder where did i screw up the configuration for the DataImportHandler. Do i need to specify more jar files? Did i put jar files in the correct directory? Any help would be greatly appreciated.

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  • How to optimize Core Data query for full text search

    - by dk
    Can I optimize a Core Data query when searching for matching words in a text? (This question also pertains to the wisdom of custom SQL versus Core Data on an iPhone.) I'm working on a new (iPhone) app that is a handheld reference tool for a scientific database. The main interface is a standard searchable table view and I want as-you-type response as the user types new words. Words matches must be prefixes of words in the text. The text is composed of 100,000s of words. In my prototype I coded SQL directly. I created a separate "words" table containing every word in the text fields of the main entity. I indexed words and performed searches along the lines of SELECT id, * FROM textTable JOIN (SELECT DISTINCT textTableId FROM words WHERE word BETWEEN 'foo' AND 'fooz' ) ON id=textTableId LIMIT 50 This runs very fast. Using an IN would probably work just as well, i.e. SELECT * FROM textTable WHERE id IN (SELECT textTableId FROM words WHERE word BETWEEN 'foo' AND 'fooz' ) LIMIT 50 The LIMIT is crucial and allows me to display results quickly. I notify the user that there are too many to display if the limit is reached. This is kludgy. I've spent the last several days pondering the advantages of moving to Core Data, but I worry about the lack of control in the schema, indexing, and querying for an important query. Theoretically an NSPredicate of textField MATCHES '.*\bfoo.*' would just work, but I'm sure it will be slow. This sort of text search seems so common that I wonder what is the usual attack? Would you create a words entity as I did above and use a predicate of "word BEGINSWITH 'foo'"? Will that work as fast as my prototype? Will Core Data automatically create the right indexes? I can't find any explicit means of advising the persistent store about indexes. I see some nice advantages of Core Data in my iPhone app. The faulting and other memory considerations allow for efficient database retrievals for tableview queries without setting arbitrary limits. The object graph management allows me to easily traverse entities without writing lots of SQL. Migration features will be nice in the future. On the other hand, in a limited resource environment (iPhone) I worry that an automatically generated database will be bloated with metadata, unnecessary inverse relationships, inefficient attribute datatypes, etc. Should I dive in or proceed with caution?

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  • Using Core Data Concurrently and Reliably

    - by John Topley
    I'm building my first iOS app, which in theory should be pretty straightforward but I'm having difficulty making it sufficiently bulletproof for me to feel confident submitting it to the App Store. Briefly, the main screen has a table view, upon selecting a row it segues to another table view that displays information relevant for the selected row in a master-detail fashion. The underlying data is retrieved as JSON data from a web service once a day and then cached in a Core Data store. The data previous to that day is deleted to stop the SQLite database file from growing indefinitely. All data persistence operations are performed using Core Data, with an NSFetchedResultsController underpinning the detail table view. The problem I am seeing is that if you switch quickly between the master and detail screens several times whilst fresh data is being retrieved, parsed and saved, the app freezes or crashes completely. There seems to be some sort of race condition, maybe due to Core Data importing data in the background whilst the main thread is trying to perform a fetch, but I'm speculating. I've had trouble capturing any meaningful crash information, usually it's a SIGSEGV deep in the Core Data stack. The table below shows the actual order of events that happen when the detail table view controller is loaded: Main Thread Background Thread viewDidLoad Get JSON data (using AFNetworking) Create child NSManagedObjectContext (MOC) Parse JSON data Insert managed objects in child MOC Save child MOC Post import completion notification Receive import completion notification Save parent MOC Perform fetch and reload table view Delete old managed objects in child MOC Save child MOC Post deletion completion notification Receive deletion completion notification Save parent MOC Once the AFNetworking completion block is triggered when the JSON data has arrived, a nested NSManagedObjectContext is created and passed to an "importer" object that parses the JSON data and saves the objects to the Core Data store. The importer executes using the new performBlock method introduced in iOS 5: NSManagedObjectContext *child = [[NSManagedObjectContext alloc] initWithConcurrencyType:NSPrivateQueueConcurrencyType]; [child setParentContext:self.managedObjectContext]; [child performBlock:^{ // Create importer instance, passing it the child MOC... }]; The importer object observes its own MOC's NSManagedObjectContextDidSaveNotification and then posts its own notification which is observed by the detail table view controller. When this notification is posted the table view controller performs a save on its own (parent) MOC. I use the same basic pattern with a "deleter" object for deleting the old data after the new data for the day has been imported. This occurs asynchronously after the new data has been fetched by the fetched results controller and the detail table view has been reloaded. One thing I am not doing is observing any merge notifications or locking any of the managed object contexts or the persistent store coordinator. Is this something I should be doing? I'm a bit unsure how to architect this all correctly so would appreciate any advice.

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  • Core i5 Turboboost/C states Freezing computer

    - by Aaron Smith
    I'm not sure which, but I just had a heck of a time getting my computer to boot up and not freeze. It would run until it finished booting windows, then everything would freeze. This happened until I turned off turboboost and all the c states on the processor. What could be causing this? Is the processor going bad?

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  • Is Prime95 a dual-core tool?

    - by Ssvarc
    Does Prime95 use multiple cores? (Is there a difference in this regard between running it from Windows, UBCD, or UBCD4Win?) If it doesn't, are there tools out there that will (preferably via a boot disc)? Thanks!

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  • Can I put a laptop Core i7 CPU in a desktop?

    - by Weezy
    One of the most important thing to me for a CPU is a good mix between speed and heat. For example five years ago I bought a Core 2 Duo 6300 (max TDP 65W): I put a big heatsink on the CPU, no fans (I do hate moving parts and noise) and it worked like a charm and very silently for five years (and it still work but five years later I wouldn't mind a faster CPU and a faster memory controller and more memory). I consider a max TDP of 130W unacceptable (like some high-end Core i7 have), for several reasons. So I was wondering: can I build a desktop and put a Core i7 CPU meant to be used in laptop in it? For example I was thinking about the Core i7 740QM (max TDP 45W [!]). Are these compatible with desktop Core i7 motherboards? (for example on NewEgg it says that the "CPU socket type" for the Core i7 740QM is PGA988, I've not too sure about what this is)

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  • Core i7 920 vs 870

    - by JL
    I am not sure which is better. Surely with processors you would think the 920 would be a higher version because 920 870. What's bothering me is that the 870 seems to have a higher clock speed, so which one is the better processor?

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  • Prime95 daul-core tool?

    - by Ssvarc
    Does Prime95 use multiple cores? (Is there a difference in this regard between running it from Windows, UBCD, or UBCD4Win?) If it doesn't, are there tools out there that will (preferably via a boot disc)? Thanks!

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  • SPARC64 VII+ Processor Core License Factor Reduced by 33%

    - by john.shell
    The Oracle processor core license factor has been a popular topic the last few months.  For those partners new to Oracle software licensing, the processor core license factor determines the number licensed CPUs that are required when running Oracle software (those charged on a per-CPU basis) on multi-core processors.My last entry talked about the core factor reduction for our T3 processor.  The core license factor for our newly announced SPARC64 VII+ processor is 0.5, which is a 33% reduction from the 0.75 rate used with our SPARC64 VI and VII processors.What does this mean for our partners?  Increased opportunity.  This change, similar to our T3-based systems, means that our hardware is the preferred platform for Oracle software. Still a little dizzy on the breadth of Oracle's software offering?  Do a simple scan of Oracle's software price lists. Consider this your target market.This change allows you to focus on total solution price or price/performance, not server prices or per core performance (a standard IBM sales tactic). That's the offensive side of the game.  Don't forget your defense.  One of the biggest customer benefits around the M-Series is investment protection.  The combination of a simple processor/board upgrade, along with a reduction in processor core license factor, makes upgrading one of the best financial moves for our customers.    One reminder.  The update to the processor core license factor only applies to the new VII+ processor - NOT the SPARC64 VI or VII processors.  You can find the official table here.

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  • Core Data object into an NSDictionary with possible nil objects

    - by Chuck
    I have a core data object that has a bunch of optional values. I'm pushing a table view controller and passing it a reference to the object so I can display its contents in a table view. Because I want the table view displayed a specific way, I am storing the values from the core data object into an array of dictionaries then using the array to populate the table view. This works great, and I got editing and saving working properly. (i'm not using a fetched results controller because I don't have anything to sort on) The issue with my current code is that if one of the items in the object is missing, then I end up trying to put nil into the dictionary, which won't work. I'm looking for a clean way to handle this, I could do the following, but I can't help but feeling like there's a better way. *passedEntry is the core data object handed to the view controller when it is pushed, lets say it contains firstName, lastName, and age, all optional. if ([passedEntry firstName] != nil) { [dictionary setObject:[passedEntry firstName] forKey:@"firstName"] } else { [dictionary setObject:@"" forKey:@"firstName"] } And so on. This works, but it feels kludgy, especially if I end up adding more items to the core data object down the road.

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  • Core Data Errors vs Exceptions Part 3

    - by John Gallagher
    My question is similar to this one. Background I'm creating a large number of objects in a core data store using NSOperations to speed things up. I've followed all the Core Data multithreading rules - I've got a single persistent store coordinator and a managed object context per thread that on save is merging back to the main managed object context. The Problem When the number of threads running at once is more than 1, I get the exception logged on save of my core data store: NSExceptionHandler has recorded the following exception: NSInternalInconsistencyException -- optimistic locking failure What I've Tried My code that creates new entities is quite complex - it makes entities that have relationships with other entities that could be being created in a separate thread. If I replace my object creation routine with some very simple code just making non-related entries, everything works perfectly. Initially, as well as the exceptions, I was getting a save error saying core data couldn't save due to the merge failing. I read the docs and realised I needed a merge policy on the Managed Object Context I was saving to. I set this up and as this question states, the save error goes away, but the exception remains. My Question Do I need to worry about these exceptions? If I do need to get rid of the exceptions, any ideas on how I do it?

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  • i5 540M or i7 720QM for laptop running VMs and software development tools?

    - by Donald Hughes
    I'm a software developer that would primarily be running Windows 7 as the primary operating system. On a typical day, I might, at any given moment, be running Visual Studio, Expression Web, SQL Server developer (and Management Console), IIS, Photoshop, a dozen browser tabs in 2-3 different browsers, Skype video chat, streaming music, and a couple of VMs (WinXP and Ubuntu) for testing/experimentation. Obviously, RAM is a concern, which is why I plan to use 8 GB so I can devote enough to the VMs to be usable. I'm also tempted to use an ExpressCard SSD for storing the VM disks to ease disk contention. And I know that that is asking a lot from a laptop, and I should just use a desktop, but I need to be able to take my work with me between several locations. It seems that at a reasonable price point, it comes down to the i5 540M versus the i7 720QM. I'm leaning toward the i7 since it would allow me to dedicate a whole hyperthreaded core to each VM, and still have two cores left for the primary OS. I've heard that the i5 has better battery life, but I'm curious for my scenario if there would be a meaningful difference. I don't usually work without a plug, but I do occasionally ride the train or fly and it would be nice to have at least 3 hours of juice for unusual circumstances. And, finally, for this usage scenario, would a dedicated video option be preferred over the i5's integrated video? It sounds like Visual Studio 2010 (and Windows 7) can take advantage of the video card.

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  • Recommended Reading for iPhone Core Animation

    - by morgman
    Can anyone here recommend any good books for getting my head around Core animation? I've been through the Apple docs and while I'm sure it's all there, I haven't been able to grok Core Animation yet... Is there an a good example I've missed? or some starting document I've overlooked? If not are there any good books out there on Core Animation... the few hits I've gotten while looking on Amazon don't rate anything too high, mostly MacOSX little iphone. Thanks in advance for any suggestions

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  • iphone tab bar controller and core data.

    - by Sway
    Ok bit of a newbie type question. I want to use Core Data, together with Tab and Navigation controllers. In XCode if I create a Navigation Based Application I get the option to choose Core Data. Whereas If I create a Tab Bar Application I don't get the choice. I understand that Tab Bars display view controllers so it kinda makes sense. However given that by default it sticks the basic Core Data code in the Application delegate I don't see why this isn't offered. At the moment I'm creating the two projects and cutting and pasting between them. Does this omission in XCode seem weird to you? Is it some sort of oversight? Thanks, Matt

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  • Core Location Best Placement and User Interruption

    - by b.dot
    Hi All, My application uses Core Location in three different views. It's working perfectly. In my first view, I subclass the CLLocationManager and use protocol methods for location updates to my calling class. Before I install the framework and code in my other classes, I was wondering: Is the protocol method the best way? What happens to the Core Location execution if the user exits the view or quits the app while it's trying to get a location fix? Is the location task terminated with the GPS system turned off immediately? If the user simply switches to another view, is it OK to assume that I can start Core Location in the next view without regard to the last? Where should the first update location call be placed. Should the application delegate instantiate the CLLocation Manager class using protocol so that it can update any of the views chosen or should each class instantiate the manager. Any feedback would be appreciated. Thanks.

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  • Faking a dynamic schema in Core Data?

    - by Gouldsc
    From reading the Apple Docs on Core Data, I've learned that you should not use Core Data when you need a dynamic schema. If I wanted to provide the user the ability to create their own properties, in a core data model would it work if I created some "dummy" attributes like "custom decimal 1", "custom decimal 2", "custom text 1", "custom text 2" etc that the user could name and use for their own purposes? Obviously this won't work for relationships, but for simple properties it seems like a reasonable workaround. Will creating a bunch of dummy attributes on my entities that go unused by most users noticeably decrease performance for them? Have any of you tried something like this? Thanks!

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  • Setting the background colour/highlight colour for a given string range using Core Text

    - by Jasarien
    I have some text laid out using Core Text in my iPhone app. I'm using NSAttributedString to set certain styles within the text for given ranges. I can't seem to find an attribute for setting a background / highlight colour, though it would seem it is possible. I couldn't find an attribute name constant that sounded relevant and the documentation only lists: kCTCharacterShapeAttributeName kCTFontAttributeName kCTKernAttributeName kCTLigatureAttributeName kCTForegroundColorAttributeName kCTForegroundColorFromContextAttributeName kCTParagraphStyleAttributeName kCTStrokeWidthAttributeName kCTStrokeColorAttributeName kCTSuperscriptAttributeName kCTUnderlineColorAttributeName kCTUnderlineStyleAttributeName kCTVerticalFormsAttributeName kCTGlyphInfoAttributeName kCTRunDelegateAttributeName Craig Hockenberry, developer of Twitterrific has said publicly on Twitter that he uses Core Text to render the tweets, and Twitterrific has this background / highlight that I'm talking about when you touch a link. Any help or pointers in the right direction would be fantastic, thanks. Edit: Here's a link to the tweet Craig posted mentioning "Core text, attributed strings and a lot of hard work", and the follow up that mentioned using CTFrameSetter metrics to work out if touches intersect with links.

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  • Google Toolbox For Mac with Core Data on iPhone results in error

    - by JaanusSiim
    I have set up my project for using Google Toolbox for Mac as described on official wiki. And everything is working as expected. For core data usage I have created a 'database' class that uses for final application SQLite storage (this is done based on Xcode template code). For unit tests I have created separate init method for 'database' to use in memory storage (storage url is [NSURL URLWithString:@"memory://store"] and type NSInMemoryStoreType). Without adding my model file (*.xcdatamodel) to unit tests target, test fail in expected place with message: executeFetchRequest:error: A fetch request must have an entity. If I add model file to the test target, then test is executed as expected (core data part looks OK), but after tests execution I get: RunIPhoneUnitTest.sh: line 123: 9487 Segmentation fault "$TARGET_BUILD_DIR/$EXECUTABLE_PATH" -RegisterForSystemEvents Command /bin/sh failed with exit code 139 This problem does not looks directly related to core data, but only happens if model file is added to target. Any pointers on resolving this issue would be appreciated!

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  • Core Data vs SQLite 3

    - by Jason Medeiros
    I am already quite familiar with relational databases and have used SQLite (and other databases) in the past. However, Core Data has a certain allure, so I am considering spending some time to learn it for use in my next application. Is there much benefit to using Core Data over SQLite, or vice versa? What are the pros/cons of each? I find it hard to justify the cost of learning Core Data when Apple doesn't use it for many of its flagship applications like Mail.app or iPhoto.app - instead opting for SQLite databases. SQLite is also used extensively on the iPhone. Can those familiar with using both comment on their experience? Perhaps, as with most things, the question is deeper than just using one over the other?

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  • Core Data Null Relationship

    - by Dylan Copeland
    I have a to-one relationship in my data model with Core Data. I'm trying to set the value of the relationship but Core Data keeps thinking that it's nil. The "creatorUser" relationship is not optional, so when I go to save my managed object context, Core Data gives errors because it thinks the "creatorUser" is nil. Any help would be greatly advised. NSManagedObject *teamManagedObject = [NSEntityDescription insertNewObjectForEntityForName:@"DCTeam" inManagedObjectContext:_managedObjectContext]; // Creator Properties NSManagedObject *creator = [self userForID:[ticketInfo objectForKey:@"userid"]]; if (!creator) { creator = [NSEntityDescription insertNewObjectForEntityForName:@"DCUser" inManagedObjectContext:_managedObjectContext]; [creator setValue:[personInfo objectForKey:@"userid"] forKey:@"userid"]; [creator setValue:[personInfo objectForKey:@"creatorName"] forKey:@"name"]; } [teamManagedObject setValue:creator forKey:@"creatorUser"];

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