Search Results

Search found 15169 results on 607 pages for 'virtual attribute'.

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 85/607 | < Previous Page | 81 82 83 84 85 86 87 88 89 90 91 92  | Next Page >

  • How to tune system settings for mongoDB on Linux?

    - by jsh
    Trying to squeeze a lot out of one question here -- please bear with me. Although the MongoDB man pages make several useful recommendations about system settings like ulimit (http://docs.mongodb.org/manual/reference/ulimit/), and other production factors (http://docs.mongodb.org/manual/administration/production-notes/) they seem mysteriously silent on things like virtual memory and swap settings. The closest we get to a hint is that "...the operating system’s virtual memory subsystem manages MongoDB’s memory..." (http://docs.mongodb.org/manual/faq/fundamentals/#does-mongodb-require-a-lot-of-ram). Running the same job - high writes and high reads on about 10,000,000 records in a single collection -- on my 4-processor, 4GB RAM macbook and an 8-core ubuntu box with 64GB RAM I saw dramatically WORSE read performance on the linux box with factory settings, and could hear the disk constantly spinning, indicating high I/O and presumably swapping. Yes, other things were happening on the box, but there was plenty of free RAM, disk space, etc.; furthermore, I did not see evidence that Mongo was expanding to take advantage of all that free RAM as it is touted to do. Linux box default settings were as follows: vm.swappiness =60 vm.dirty_background_ratio = 10 vm.dirty_ratio = 20 vm.dirty_expire_centisecs =3000 vm.dirty_writeback_centisecs=500 I hazarded some guesses looking at docs and blogs for other types of databases (Oracle, MYSQL, etc.), experimented, and adjusted as below. vm.swappiness=10 vm.dirty_background_ratio=5 vm.dirty_ratio=5 vm.dirty_writeback_centisecs=250 vm.dirty_expire_centisecs=500 I saw some immediate apparent improvements in read time. However, when I ran my test jobs again, read performance continued to be painfully sluggish during heavy writes. Then, I REBUILT the collection from an available data source - and suddenly I can read at 1ms or less per record WHILE doing the write job! So the question is really two-fold: 1) What are appropriate VM settings for MongoDB on Linux? 2) (bonus) Does Mongo do some checking or optimization with the OS while data is being built? In other words, if I have built a large data set with suboptimal VM or I/O settings, does Mongo make assumptions during the memory-mapping process that will fail to take advantage of optimizations down the road? Obviously I don't fully grok memory mapping under the hood (I was hoping I wouldn't have to). Any help appreciated...thanks! -j

    Read the article

  • Configuration to point an X tty to a separate system?

    - by buu700
    Specifically, I have an Ubuntu 10.04 system with a headless Ubuntu 12.04 virtual machine, and I'm looking for a way to have it set up so pressing ctrl+alt+F8 will take me into another X client which is connected to an X server on the vm (with gdm appropriately displayed at startup, etc.). As in, my startup script should spin up the headless machine and then immediately perform a "startx" pointed at the vm.

    Read the article

  • Cloning a VM to add a new MySQL Slave

    - by Ben Holness
    I am in the process of adding a new slave to a replicated mysql setup. All of the slave nodes are virtual machines. If I clone one of the nodes to a new VM, then start it with no networking, stop mysql, change the server-id in my.cnf to a new id and then restart mysql and networking, will it all work correctly, or will mysql get confused because it used to be a different server id? OS: Ubuntu 10.10 VM Platform: VMWare 5 MySQL : Server version: 5.1.49-1ubuntu8.1-log (Ubuntu)

    Read the article

  • Windows 7: Some time my mouse got "virtually" unplugged and plugged again in some seconds.

    - by yes123
    So guys, sometime when i am browsing or doing other stuff it's like windows unplugs my usb-logitech-mouse. it than get riconnected again in few seconds. I tihnk this is happening after I had to install virtual machines (like: virtualbox and vmware) I already disinstalled them but this issue is still here. When this happens even the lights on my mouse are off same behaviour as like somone unplagged it. What could i do?

    Read the article

  • Save image of running Windows 8 to run from Ubuntu

    - by Noel Evans
    I have a brand new Windows 8 PC. I'd like to hold on to the licensed copy in case I need to run a Windows app at some time in the future but want to wipe the machine completely, installing Ubuntu with no dual-boot. Is it possible to save an image of Windows 8 which can then be run (on the same laptop) from Linux as a virtual machine? If so, what applications (ideally free) should I use to make the image and then run it from Ubuntu?

    Read the article

  • Trouble with Ubuntu on Oracle VM

    - by Rosarch
    I'm running Ubuntu on an Oracle VirtualBox virtual machine. I clicked the "install Ubuntu" button, and it took me through a wizard. I am currently on the following step: Unfortunately, the "forward" button is disabled. What's up with this? I tried entering different data for the form on this step, going back and redoing part of the wizard, and rebooting the machine. Nothing worked. My host OS is Windows 7.

    Read the article

  • Possible reasons for high CPU load of taskmgr.exe process on VM?

    - by mjn
    On a VMware virtual machine which has severe performance problems I can see a constant average of 20+ percent CPU load for the TASKMGR.EXE (task manager) process. The apps running on this server have lower load, around 4 to 10 percent average. The VM is running Windows 2003 Server Standard with 3.75 GB assigned RAM. I suspect that the task manager CPU load has something to do with other VM instances on the VMWare server but could not see a similar value on internal ESXi systems (the problematic VM runs in the customers IT).

    Read the article

  • New HandleProcessCorruptedStateExceptions attribute in .Net 4

    - by Yaakov Davis
    I'm trying to crash my WPF application, and capture the exception using the above new .Net 4 attribute. I managed to manually crash my application by calling Environment.FailFast("crash");. (Also managed to crash it using Hans's code from here: http://stackoverflow.com/questions/2950130/how-to-simulate-a-corrupt-state-exception-in-net-4). The app calls the above crashing code when pressing on a button. Here are my exception handlers: protected override void OnStartup(StartupEventArgs e) { base.OnStartup(e); AppDomain.CurrentDomain.FirstChanceException += CurrentDomain_FirstChanceException; AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException; DispatcherUnhandledException += app_DispatcherUnhandledException; } [HandleProcessCorruptedStateExceptions] void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e) { //log.. } [HandleProcessCorruptedStateExceptions] void CurrentDomain_FirstChanceException(object sender, System.Runtime.ExceptionServices.FirstChanceExceptionEventArgs e) { //log.. } [HandleProcessCorruptedStateExceptions] void app_DispatcherUnhandledException(object sender, System.Windows.Threading.DispatcherUnhandledExceptionEventArgs e) { //log.. } The //log... comment shown above is just for illustration; there's real logging code there. When running in VS, an exception is thrown, but it doesn't 'bubble' up to those exception handler blocks. When running as standalone (w/o debugger attached), I don't get any log, despite what I expect. Does anyone has an idea why is it so, and how to make the handling code to be executed? Many thanks, Yaakov

    Read the article

  • Silverlight MergedDictionary - Attribute Value out of Range

    - by Wonko the Sane
    Hello All, I have a Silverlight-3 solution that contains a few different projects. I want to have one "common" project for holding controls and resources that will be used by multiple other projects. Within the common project, there is a folder called Resources, which holds a ResourceDictionary (CommonColors.xaml). This is set to be built as a Resource, Do Not Copy. I add a reference to the common project in another project (call it UncommonControls), and attempt to add the ResourceDictionary as a MergedDictionary: <UserControl.Resources> <ResourceDictionary> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="/Common;component/Resources/CommonColors.xaml" /> <ResourceDictionary Source="/UncommonControls;component/Resources/UncommonStyles.xaml" /> </ResourceDictionary.MergedDictionaries> </ResourceDictionary> </UserControl.Resources> When I try to run, I get an exception: Attribute /Common;component/Resources/CommonColors.xaml value is out of range. [Line: 14 Position: 44] --- Inner Exception --- The given key was not present in the dictionary. However, if I reference a ResourceDictionary local to Uncommon (such as the UncommonStyles.xaml, above) project, which is set up with the same Build properties, it works fine. I haven't seen anything that says SL3 can't reference an external ResourceDictionary (on the contrary, I've seen an example of using one, albeit with no downloadable project to verify the behavior). Thanks, Wonko

    Read the article

  • .NET 4 RTM MetadataType attribute ignored when using Validator

    - by bart
    I am using VS 2010 RTM and trying to perform some basic validation on a simple type using MetadataTypeAttribute. When I put the validation attribute on the main class, everything works. However, when I put it on the metadata class, it seems to be ignored. I must be missing something trivial, but I've been stuck on this for a while now. I had a look at the Enterprise Library validation block as a workaround, but it doesn't support validation of single properties out of the box. Any ideas? class Program { static void Main(string[] args) { Stuff t = new Stuff(); try { Validator.ValidateProperty(t.X, new ValidationContext(t, null, null) { MemberName = "X" }); Console.WriteLine("Failed!"); } catch (ValidationException) { Console.WriteLine("Succeeded!"); } } } [MetadataType(typeof(StuffMetadata))] public class Stuff { //[Required] //works here public string X { get; set; } } public class StuffMetadata { [Required] //no effect here public string X { get; set; } }

    Read the article

  • Django Error - AttributeError: 'Settings' object has no attribute 'LOCALE_PATHS'

    - by Randy Simon
    I am trying to learn django by following along with this tutorial. I am using django version 1.1.1 I run django-admin.py startproject mysite and it creates the files it should. Then I try to start the server by running python manage.py runserver but here is where I get the following error. Traceback (most recent call last): File "manage.py", line 11, in <module> execute_manager(settings) File "/Library/Python/2.6/site-packages/django/core/management/__init__.py", line 362, in execute_manager utility.execute() File "/Library/Python/2.6/site-packages/django/core/management/__init__.py", line 303, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/Library/Python/2.6/site-packages/django/core/management/base.py", line 195, in run_from_argv self.execute(*args, **options.__dict__) File "/Library/Python/2.6/site-packages/django/core/management/base.py", line 213, in execute translation.activate('en-us') File "/Library/Python/2.6/site-packages/django/utils/translation/__init__.py", line 73, in activate return real_activate(language) File "/Library/Python/2.6/site-packages/django/utils/translation/__init__.py", line 43, in delayed_loader return g['real_%s' % caller](*args, **kwargs) File "/Library/Python/2.6/site-packages/django/utils/translation/trans_real.py", line 205, in activate _active[currentThread()] = translation(language) File "/Library/Python/2.6/site-packages/django/utils/translation/trans_real.py", line 194, in translation default_translation = _fetch(settings.LANGUAGE_CODE) File "/Library/Python/2.6/site-packages/django/utils/translation/trans_real.py", line 172, in _fetch for localepath in settings.LOCALE_PATHS: File "/Library/Python/2.6/site-packages/django/utils/functional.py", line 273, in __getattr__ return getattr(self._wrapped, name) AttributeError: 'Settings' object has no attribute 'LOCALE_PATHS' Now, I can add a LOCAL_PATH atribute set to an empty string to my settings.py file but then it just complains about another setting and so on. What am I missing here?

    Read the article

  • Parse a xml attribute depending on child content

    - by eddiefernberg
    Hello! I load an external xml file containing user metas looking like this: <?xml version="1.0" encoding="utf-8"?> <user_information> <user url="http://usersweb.com"> <name>Arnold</name> <lastname> <name>Arnoldson</name> </lastname> <age>42</age> </user> <user url="http://anotheruserweb.com"> <name>Arnold</name> <lastname> <name>Arichson</name> </lastname> <age>42</age> </user> And so on.... </user_information> I know the formatting with <lastname> is really stupid, but i can't modify the source. I want to load in the "url"-attribute from <user> , but only if <name> and <lastname> matches the name values i have stored in my own user database. I know how to parse the rest of it with PHP, but just the matching sequence seems difficult to me. Any help appreciated!

    Read the article

  • Custom IIdentity and passing data from an attribute to a controller

    - by DM
    Here's my scenario: I've successfully created a custom IIdentity that I pass to a GenericPrincipal. When I access that IIdentity in my controller I have to cast the IIdentity in order to use the custom properties. example: public ActionResult Test() { MyCustomIdentity identity = (MyCustomIdentity)User.Identity; int userID = identity.UserID; ...etc... } Since I need to do this casting for nearly every action I would like to wrap this functionality in an ActionFilterAttribute. I can't do it in the controller's constructor because the context isn't initialized yet. My thought would be to have the ActionFilterAttribute populate a private property on the controller that I can use in each action method. example: public class TestController : Controller { private MyCustomIdentity identity; [CastCustomIdentity] public ActionResult() { int userID = identity.UserID; ...etc... } } Question: Is this possible and how? Is there a better solution? I've racked my brain trying to figure out how to pass public properties that are populated in an attribute to the controller and I can't get it.

    Read the article

  • Add KO "data-bind" attribute on $(document).ready

    - by M.Babcock
    Preface I've rarely ever been a JS developer and this is my first attempt at doing something with Knockout.js. The question to follow likely illustrates both points. Backgound I have a fairly complex MVC3 application that I'm trying to get to work with KO (v2.0.0.0). My MVC app is designed to generically control which fields appear in the view (and how they are added to the view). It makes use of partial views to decide what to draw in the view based on the user's permissions (If the user is in group A then show control A, if the user in group B then show control B or possibly if the user is in group A don't include the control at all). Also, my model is very flat so I'm not sure the built-in ability to apply my ViewModel to a specific portion of the view will help. My solution to this problem is to provide an action in my controller that responds with an object in JSON format with that contains the JQuery selector and the content to assign to the "data-bind" attribute and bind the ViewModel to the View in the $(document).ready event using the values provided. Failed Proof-of-concept My first attempt at proving that this works doesn't actually seem to work, and by "doesn't work" I mean it just doesn't bind the values at all (as can be seen in this jsfiddle). I've tried it with the applyBindings inside of the ready event and not, but it doesn't seem to make any bit of difference. Question What am I doing wrong? Or is this just not something that can work with KO (though I've seen at least one example online doing the same thing and it supposedly works)? Like I said in the preface, I've only ever pretended to be a JS developer (though I've generally gotten it to work in the past) so I'm at a loss where to start trying to figure out what I'm doing wrong. Hopefully this isn't a real noob question.

    Read the article

  • how to handle base tag target attribute in iphone uiwebview to open new window

    - by user217428
    When the links are supposed to open a new window, iphone uiwebview won't trigger an event when user click these links. We had to use javascript to do some trick to the target attribute of the links. I can handle 'a' tag to open in the '_self' window with the trick without problem. But when I do it the same way with the 'base' tag. it doesn't work. I believe the base target is set by the javascript. But the base tag is in the head, which may be handled by the uiwebview before my javascript executed, so the target change may not reflected in the webkit engine. Could someone please give some suggestion, so I can open the link in the same uiwebview? The following is the sample HTML opened in the uiwebview <html> <head> <base target='_blank'> </head> <body> <a href='http://google.ca'>google</a> </body> </html> The following is the code to be executed in the (void) webViewDidFinishLoad: (UIWebView*)webView static NSString* js = @"" "function bkModifyBaseTargets()" "{" "var allBases = window.document.getElementsByTagName('base');" "if (allBases)" "{" "for (var i = 0; i < allBases.length; i++)" "{" "base = allBases[i];" "target = base.getAttribute('target');" "if (target)" "{" "base.setAttribute('target', '_self');" "}" "}" "}" "}"; [webView stringByEvaluatingJavaScriptFromString: js]; [webView stringByEvaluatingJavaScriptFromString: @"bkModifyBaseTargets()"];

    Read the article

  • Google Contacts Error: If-Match or If-None-Match header or entry etag attribute required

    - by Ali
    Hi guys I'm following the example code as defined on this website: http://www.ibm.com/developerworks/opensource/library/x-phpgooglecontact/index.html I want to be able to integrate with my google apps account and play around with teh contacts. However I get this error whenever I try to run the modify contacts code: If-Match or If-None-Match header or entry etag attribute required This is my code: Zend_Loader::loadClass('Zend_Gdata_ClientLogin'); Zend_Loader::loadClass('Zend_Http_Client'); Zend_Loader::loadClass('Zend_Gdata_Query'); Zend_Loader::loadClass('Zend_Gdata_Feed'); $client = getGoogleClient('cp'); // this is a function I made - its working fine $client->setHeaders('If-Match: *'); $gdata = new Zend_Gdata($client); $gdata->setMajorProtocolVersion(3); $query = new Zend_Gdata_Query($id);// id is the google reference $entry = $gdata->getEntry($query); $xml = simplexml_load_string($entry->getXML()); $xml->name->fullName = trim($contact->first_name).' '.trim($contact->last_name); $entryResult = $gdata->updateEntry($xml->saveXML(), $id);

    Read the article

  • How to Extract data asocaited with attribute of XML file using python 3.2

    - by user1460383
    I have this xml format..... <event timestamp="0.447463" bustype="LIN" channel="LIN 1"> <col name="Time"/> <col name="Start of Frame">0.440708</col> <col name="Channel">LIN 1</col> <col name="Dir">Tx</col> <col name="Event Type">LIN Frame (Diagnostic Request)</col> <col name="Frame Name">MasterReq_DB</col> <col name="Id">3C</col> <col name="Data">81 06 04 04 FF FF 50 4C</col> <col name="Publisher">TestMaster (simulated)</col> <col name="Checksum">D3 &quot;Classic&quot;</col> <col name="Header Duration">2.090 ms (40.1 bits)</col> <col name="Resp. Duration">4.688 ms (90.0 bits)</col> <col name="Time difference">0.049987</col> <empty/> </event> In above xml, i need to extract data associated with attribute 'name' Am able to get all names but am unable to fetch MasterReq_DB< field Please help me ... Thanks in advance

    Read the article

  • WPF compile error "IDictionary must have a Key attribute"

    - by the empirical programmer
    I've created control styles I want to use among multiple xaml pages in my WPF app. To do this I created a Resources.xaml and added the styles there. Then in my pages I add this code <Grid.Resources> <ResourceDictionary> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="pack://application:,,,/SampleEventTask;component/Resources.xaml" /> </ResourceDictionary.MergedDictionaries> </ResourceDictionary> </Grid.Resources> On two pages this works fine, but on the 3rd page I get a compile error that says: All objects added to an IDictionary must have a Key attribute or some other type of key associated with them. If I add a key to this, as such ResourceDictionary x:Key="x", then the compile error goes but on running the app it errors finding the style. I can make the compile error go away and have the app run by just moving original (no key specified) "ResourceDictionary" xaml from the top level Grid into a contained Grid on that page. But I don't understand what is going on here. Any suggestions as to what the problem is, I'm just missing something or doing something incorrectly. Is there a better way to share styles? thanks

    Read the article

  • Nonetype object has no attribute '__getitem__'

    - by adohertyd
    I am trying to use an API wrapper downloaded from the net to get results from the new azure Bing API. I'm trying to implement it as per the instructions but getting the runtime error: Traceback (most recent call last): File "bingwrapper.py", line 4, in <module> bingsearch.request("affirmative action") File "/usr/local/lib/python2.7/dist-packages/bingsearch-0.1-py2.7.egg/bingsearch.py", line 8, in request return r.json['d']['results'] TypeError: 'NoneType' object has no attribute '__getitem__' This is the wrapper code: import requests URL = 'https://api.datamarket.azure.com/Data.ashx/Bing/SearchWeb/Web?Query=%(query)s&$top=50&$format=json' API_KEY = 'SECRET_API_KEY' def request(query, **params): r = requests.get(URL % {'query': query}, auth=('', API_KEY)) return r.json['d']['results'] The instructions are: >>> import bingsearch >>> bingsearch.API_KEY='Your-Api-Key-Here' >>> r = bingsearch.request("Python Software Foundation") >>> r.status_code 200 >>> r[0]['Description'] u'Python Software Foundation Home Page. The mission of the Python Software Foundation is to promote, protect, and advance the Python programming language, and to ...' >>> r[0]['Url'] u'http://www.python.org/psf/ This is my code that uses the wrapper (as per the instructions): import bingsearch bingsearch.API_KEY='abcdefghijklmnopqrstuv' r = bingsearch.request("affirmative+action")

    Read the article

  • While trying to set up Django on Windows: AttributeError: 'Settings' object has no attribute 'DATABA

    - by user326370
    I'm following these instructions in order to set up Django on Windows. I have installed Python 2.6, PostgreSQL 8.4, Psycopg 2.0.14 for Python 2.6 and the latest version of Django from SVN. I'm now following these instructions to run a test project (copied from the page linked to above): C:\Documents and Settings\John>cd C:\ C:\>mkdir django C:\>cd django C:\django>django-admin.py startproject testproject C:\django>cd testproject C:\django\testproject>python manage.py runserver When I run the last line, this is the output: Validating models... Unhandled exception in thread started by <function inner_run at 0x01ECB930> Traceback (most recent call last): File "J:\Python26\lib\site-packages\django\core\management\commands\runserver.py", line 48, in inn er_run self.validate(display_num_errors=True) File "J:\Python26\lib\site-packages\django\core\management\base.py", line 249, in validate num_errors = get_validation_errors(s, app) File "J:\Python26\lib\site-packages\django\core\management\validation.py", line 22, in get_validat ion_errors from django.db import models, connection File "J:\Python26\lib\site-packages\django\db\__init__.py", line 14, in <module> if not settings.DATABASES: File "J:\Python26\lib\site-packages\django\utils\functional.py", line 273, in __getattr__ return getattr(self._wrapped, name) AttributeError: 'Settings' object has no attribute 'DATABASES' Did I forget to do something with the database? Any help will be appreciated. Thank you!

    Read the article

  • Passing row from UIPickerView to integer CoreData attribute

    - by Gordon Fontenot
    I'm missing something here, and feeling like an idiot about it. I'm using a UIPickerView in my app, and I need to assign the row number to a 32-bit integer attribute for a Core Data object. To do this, I am using this method: -(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component { object.integerValue = row; } This is giving me a warning: warning: passing argument 1 of 'setIntegerValue:' makes pointer from integer without a cast What am I mixing up here? --EDIT 1-- Ok, so I can get rid of the errors by changing the method to do the following: NSNumber *number = [NSNumber numberWithInteger:row]; object.integerValue = rating; However, I still get a value of 0 for object.integerValue if I use NSLog to print it out. object.integerValue has a max value of 5, so I print out number instead, and then I'm getting a number above 62,000,000. Which doesn't seem right to me, since there are 5 rows. If I NSLog the row variable, I get a number between 0 and 5. So why do I end up with a completely different number after casting the number to NSNumber?

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 81 82 83 84 85 86 87 88 89 90 91 92  | Next Page >