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  • Blank lines between sourcecode [closed]

    - by manix
    I'm so confused with a strange behaviour. Actually I have edited some php files remotely with my PhpDesigner8 (a php editor). Everything goes right, but when my teammates reopen the files that I have edited the source code have blank lines like below: class AdminController extends Controller { function __construct() { parent::__construct(); if (!$this->session->can_admin()) { show_error('Solo para administradores.'); } $this->load->library('backend'); } } Instead of class AdminController extends Controller { function __construct() { parent::__construct(); if (!$this->session->can_admin()) { show_error('Solo para administradores.'); } $this->load->library('backend'); } } Did you have experience these kinds of problems?

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  • Search and Replace in MVC

    - by danip
    What would be a good MVC/OOP/GRASP/SOLID structure for a search/replace functionality. Methods: search/searchNext/replace/replaceAll. I'm interested only in the PHP arhitecture and how a professional developer would implement this in it's OWN FRAMEWORK. What names would you use for the classes? What subfolders would you used in your MODEL folder? How would you connect the MODELS/CONTROLLER? This is just a arhitecture question to understand better the principles of good OOP in practice. My current implementation is very simplistic using a service model: /controller/SearchReplaceController.php /models/services/SearchReplaceService.php The problem with this is I know I'm breaking SRP in the service but I found this somehow acceptable. Also creating a service does not feel like the best solution for this.

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  • Are areas a good organizational feature, or just extra work?

    - by SOfanatic
    Do Areas in ASP.NET MVC end up being a help or just a drag in the end (because of the URL construction)? Would it be better to have subdirectories inside the main Controllers folder? or are there any other options to organizing a project? EDIT For example, this is your average link without Areas: @Html.ActionLink("Home","Index","Home") and this is your average link with Areas: @Html.ActionLink("Home","Index", new { Area = "", Controller = "Home"}) Could the following work? (Main controller with subdirectories) I'm just trying to find out if implementing Areas in a project is worthwhile, because I also read that it can be problematic when using Dependency Injection. And is there an alternative to Areas?

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  • Dual display setup - only one displayed after logon

    - by oneofthemany
    During boot process my desktop shows both Monitors, but after log I only get one. I'm using Ubuntu 11.10 When I go into Displays its still only shows on Monitor. Here is my graphics card details: 01:00.0 VGA compatible controller: nVidia Corporation G72 [GeForce 7300 LE] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Dell Device 0405 Flags: bus master, fast devsel, latency 0, IRQ 16 Memory at dd000000 (32-bit, non-prefetchable) [size=16M] Memory at c0000000 (64-bit, prefetchable) [size=256M] Memory at de000000 (64-bit, non-prefetchable) [size=16M] [virtual] Expansion ROM at dfe00000 [disabled] [size=128K] Capabilities: <access denied> Kernel driver in use: nvidia Kernel modules: nvidia_96, nvidia_173, nouveau, nvidiafb

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  • Is is OK to use a non-primary key as the id in a rails resource?

    - by nPn
    I am getting ready to set up a resource for some new api calls to my rails application. I am planning on calling the resource devices ie resources :devices This is going to represent a android mobile devices I know this will get me routes such as GET devices/:id In most cases :id would be an integer representing the primary key, and in the controller we would use :id as such: GET devices/1 @device = Device.find(params[:id]) In this case I would like to use :id as the google_cloud_messaging_reg_id So I would like to have requests like this: GET devices/some_long_gcm_id and then in the controller , just us params[:id] to look up the device by the gcm registration id. This seem more natural, since the device will know it's gcm id rather than it's rails integer id. Are there any reasons I should avoid doing this?

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  • Boot screen appears to be asking a question but garbled

    - by mark kaylor
    I'm running 12.04 Precise Pangolin, Kernel 3.2.0-32 w/ GNOME 3.4.2 I perused the prior questions/answers and did not find exactly the same problem, I am concerned that AUTOFSCK, Grub or some other critical event that needs some attention ? Any idea on how to get my video clean during boot? Once I get past the boot screen the video driver/card, etc is performing beautifully ! Here is a photo of the boot screen; nVidia GeForce CARD INFORMATION (lspci -vvv) 01:00.0 VGA compatible controller: NVIDIA Corporation G72 [GeForce 7300 LE] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Gateway 2000 Device 3a07 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- SERR- [disabled] Capabilities: Kernel driver in use: nvidia Kernel modules: nvidia_173, nouveau, nvidiafb Thanks for your help/advice.

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  • How should dependencies be managed across a modular application?

    - by bear
    Let's say that we have a structure like this: Application -- Modules --Module1 -- Controller -- PublicHelper --Module2 -- Controller -- PublicHelper Whereby a module's Public Helper can provide helper functions. In nearly every module helper, the helper needs to access another module's public helper methods. Let's say for instance, in a PHP application: Module1 provides functionality to create a sale, and as part of the class Module1PublicHelper extends AbstractModuleHelper { public function createSale($customerId, $param, $param) { $userPublicHelper = // grab an instance of the user public helper $currentUser = $userPublicHelper->getCurrentUser(); } } class Module2PublicHelper extends AbstractModuleHelper { public function getCurrentUser() { //do something return $user; } } In this situation, the method needs to obtain an instance, either new or whatever of the user public helper. Given that all of Module Public Helper classes are instantiated with a minimum set of constructor params, e.g. EntityManager, what would be the best way to get a copy of it? Obviously, we can't really inject the user public helper class into the class containing createSale One solution would be to use a service locator or registry, however, testing the application isn't exactly easy.

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  • Screen rendering problems after upgrading to 12.10

    - by vjrj
    Since upgrading to Ubuntu 12.10 I'm suffering severe rendering issues in unity: Some parts of any application (for instance Firefox, or emacs, etc) are blank, or are not rendered, or are blinking. Some fonts in an application are not correct rendered, maybe only some part (see Eclipse screenshot). There is some shadows in desktop background. It's something that occurs from time to time (it's works great for hours and suddenly start to give this rendering problems). I was trying to find a bug in launchpad but without success. My card (using i915 module): 00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor Integrated Graphics Controller [8086:0042] (rev 02) I've tried to reset compiz/unity or gnome but does not help. Any tip? Update: A Firefox screenshot of how my profile in Ask Ubuntu looks like now

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  • Java???????·????????Java EE????JAX-RS 2.0??????Java Developers Workshop 2012 Summer????

    - by ???02
    ???Java??????????????????1?????“GlassFish Guy”??????????????·????????????·????????????8???????Java Developers Workshop 2012 Summer???????????????Java EE????2??????????????????????????????????(???) Java EE??????“????·?????”????? ??????·?????????Java????????????·???? Java??????????????????????????????Java??????????Java????????·????????????????????????????????Java????????Java EE 7?JAX-RS?????????????????? 1?????????Java EE 7 and HTML5: Developing for the Cloud????????Java EE??????????????·?????????????????????????????????? Java EE?????????2009?10?????????Java EE 6??????????????????????????4,000????????????????17?????????·????Java EE 6??????????????Java EE 6?????????????????????Java EE 6??????10??????? ?????????????????WAR???????????EJB??? ????Java EE???EJB????·???????????????????????????·???????(DD)?????????????????????Java EE 6????????????EJB?“?????”?????????POJO????????????????EJB????????????????????POJO?WAR??????????????????????DD???????????????????????????????????????(????) ??1??????????????????CDI(Context Dependency Injection)????DI????Java EE 5??????????????????????????????????Java EE 6?CDI???????????·?????????????DI???????????????????Spring Framework??????????????????????????Java EE???DI??????????????????????? ????????????Java EE????????????????????????????Amazon Web Services?Windows Azure????IaaS?Google App Engine????PaaS?Salesforce.com????SaaS?????????????????????·?????????????????????????????????????????????????????????????? ????????Java EE???????????????????????????????Java EE?????????????????·????????????Java EE??????????????????????????????????????????·?????????????? ??????????????????Java EE 7??????????????Java EE 8??????·??????????????????????????HTML5??3???????????????????????????????????????????????????????????????? ?????Java EE???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ?????Cloud Application Service(??)??????????????????????????????????????????????????????????????????????????????? ???HTML5??????“Web??????·??????”????JSON?WebSockets??????????????Java EE???????????????Web????????????????????????WebSocket???????????????????????·?????????????WebSocket?????Java EE????????????????????????????? ???Java EE 7????????API????????????????????? ??????????????????·?????????????????????·????????????????????????????5??API??Java EE 7??????????????????????????????????????????????????????????????????????????????????????????????????????????????????(????)???? Java EE 7?????????????????API????????????????????????????2013??2??????????????????????????????????????????????????????????????????Web???(http://javaee-spec.java.net/)???????????????????????????????? ??????????Project Avatar???????????Project Avatar??????????Java????????????????????????????Java????????????HTML5???????????????????????????HTML?Java???????????????????????Java EE???????????????????????????????? JAX-RS 2.0?Java??????????????????? ???????2?????????JAX-RS 2.0: RESTful Java on Steroids???Java????RESTful?????????????API???JAX-RS?????Java EE 7???????JAX-RS 2.0???????????????????????????????? ?????????“RESTful”???????????????????? ????????????????????????????? ?????????????? ???????????????? ??????????????(??)??? ????????????????????(?????????????????) ????Java EE????????API?????????????JAX-RS 1.0??JAX-RS 1.0???POJO????API???HTTP??????????????????????????????????????????????? ????????????JAX-RS 2.0???????????8??????????/???????????? ?Client API ?Client-side and Server-side Asynchronous ?Filters and Interceptors ?Improved Connection Negotiation ?Validation ?Hypermedia ?Alignment with JSR 330 ?Model-View-Controller JAX-RS 2.0??????????????·????????????????????Model-View-Controller?????????????????????Model-View-Controller?????????JSF????MVC???????????????JAX-RS???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ???Client API???????????????HTTP??????·????????????????????????API???????????????JAX-RS 2.0?Client API???JAX-RS?????API??????????????Java EE?????????????REST??????????????????? ?Filters&Interceptors????????????????????????JAX-RS??????????????????JAX-RS 1.0???????????JAX-RS 2.0??????????????????????? ?Asynchronus??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ?Connect Negotiation???Validation???????????????????????Validation????????????????Bean Validation?????JAX-RS?????????????????????????? ?Hypermedia???????????????????Web???????????????????HATEOAS(Hypermedia As The Engine Of App State)?????JAX-RS????????????????????????????????Asynchronus???????????????????????????? JAX-RS 2.0???????????JSR 330:Dependency Injection for Java???????????????????Client API??????????????????????????????????????JAX-RS 2.0??????????????????????Web???????????·??????????(http://jcp.org/en/jsr/detail?id=339)????????????????????????????????????????

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  • Server Error in '/' Application. - The resource cannot be Found.

    - by Bigced_21
    I am new to ASP.NET MVC 2. I do not understand why I am receiving this error. Is there something missing that i'm not referencing correctly. I'm trying to create a simple jquery autocomplete online search textbox and view the details of the person that i select using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using System.Web.Mvc.Ajax; using DOC_Kools.Models; namespace DOC_Kools.Controllers { public class HomeController : Controller { private KOOLSEntities _dataModel = new KOOLSEntities(); // // GET: /Home/ public ActionResult Index() { ViewData["Message"] = "Welcome to ASP.NET MVC!"; return View(); } // // GET: /Home/ public ActionResult getAjaxResult(string q) { string searchResult = string.Empty; var offenders = (from o in _dataModel.OffenderSet where o.LastName.Contains(q) orderby o.LastName select o).Take(10); foreach (Offender o in offenders) { searchResult += string.Format("{0}|r\n", o.LastName); } return Content(searchResult); } [AcceptVerbs(HttpVerbs.Post)] public ActionResult Search(string searchTerm) { if (searchTerm == string.Empty) { return View(); } else { // if the search contains only one result return detials // otherwise a list var offenders = from o in _dataModel.OffenderSet where o.LastName.Contains(searchTerm) orderby o.LastName select o; if (offenders.Count() == 0) { return View("not found"); } if (offenders.Count() > 1) { return View("List", offenders); } else { return RedirectToAction("Details", new { id = offenders.First().SPN }); } } } // // GET: /Home/Details/5 public ActionResult Details(int id) { return View(); } // // GET: /Home/Create public ActionResult Create() { return View(); } // // POST: /Home/Create [AcceptVerbs(HttpVerbs.Post)] public ActionResult Create(FormCollection collection) { try { // TODO: Add insert logic here return RedirectToAction("Index"); } catch { return View(); } } // // GET: /Home/Edit/5 public ActionResult Edit(int id) { return View(); } // // POST: /Home/Edit/5 [AcceptVerbs(HttpVerbs.Post)] public ActionResult Edit(int id, FormCollection collection) { try { // TODO: Add update logic here return RedirectToAction("Index"); } catch { return View(); } } public ActionResult About() { return View(); } } } using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using System.Web.Routing; namespace DOC_Kools { // Note: For instructions on enabling IIS6 or IIS7 classic mode, // visit http://go.microsoft.com/?LinkId=9394801 public class MvcApplication : System.Web.HttpApplication { public static void RegisterRoutes(RouteCollection routes) { routes.IgnoreRoute("{resource}.axd/{*pathInfo}"); routes.MapRoute( "Default", // Route name "{controller}/{action}/{id}", // URL with parameters new { controller = "Home", action = "Index", id = "" } // Parameter defaults ); routes.MapRoute( "OffenderSearch", "Offenders/Search/{searchTerm}", new { controller = "Home", action = "Index", searchTerm = "" } ); routes.MapRoute( "OffenderAjaxSearch", "Offenders/getAjaxResult/", new { controller = "Home", action = "getAjaxResult" } ); } protected void Application_Start() { AreaRegistration.RegisterAllAreas(); RegisterRoutes(RouteTable.Routes); } } } <%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<DOC_Kools.Models.Offender>" %> $(document).ready(function() { $("#searchTerm").autocomplete("/Offenders/getAjaxResult/"); }); Home Page <%= Html.Encode(ViewData["Message"]) % <h2>Look for an offender</h2> <form action="/Offenders/Search" method="post" id="searchForm"> <input type="text" name="searchTerm" id="searchTerm" value="" size="10" maxlength="30" /> <input type="submit" value="Search" /> </form> <br /> what do i have to do in order for the textbox search to display on the index page? What else do i have to do for the autocomplete to function correctly. i have the autocomplete.js & jquery.js added to the index.aspx view Any help will be appreciated so that i can get this working. Thanks!

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  • Problem Implementing StructureMap in VB.Net Conversion of SharpArchitecture

    - by Monkeeman69
    I work in a VB.Net environment and have recently been tasked with creating an MVC enviroment to use as a base to work from. I decided to convert the latest SharpArchitecture release (Q3 2009) into VB, which on the whole has gone fine after a bit of hair pulling. I came across a problem with Castle Windsor where my custom repository interface (lives in the core/domain project) that was reference in the constructor of my test controller was not getting injected with the concrete implementation (from the data project). I hit a brick wall with this so basically decided to switch out Castle Windsor for StructureMap. I think I have implemented this ok as everything compiles and runs and my controller ran ok when referencing a custom repository interface. It appears now that I have/or cannot now setup my generic interfaces up properly (I hope this makes sense so far as I am new to all this). When I use IRepository(Of T) (wanting it to be injected with a concrete implementation of Repository(Of Type)) in the controller constructor I am getting the following runtime error: "StructureMap Exception Code: 202 No Default Instance defined for PluginFamily SharpArch.Core.PersistenceSupport.IRepository`1[[DebtRemedy.Core.Page, DebtRemedy.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], SharpArch.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=b5f559ae0ac4e006" Here are my code excerpts that I am using (my project is called DebtRemedy). My structuremap registry class Public Class DefaultRegistry Inherits Registry Public Sub New() ''//Generic Repositories AddGenericRepositories() ''//Custom Repositories AddCustomRepositories() ''//Application Services AddApplicationServices() ''//Validator [For](GetType(IValidator)).Use(GetType(Validator)) End Sub Private Sub AddGenericRepositories() ''//ForRequestedType(GetType(IRepository(Of ))).TheDefaultIsConcreteType(GetType(Repository(Of ))) [For](GetType(IEntityDuplicateChecker)).Use(GetType(EntityDuplicateChecker)) [For](GetType(IRepository(Of ))).Use(GetType(Repository(Of ))) [For](GetType(INHibernateRepository(Of ))).Use(GetType(NHibernateRepository(Of ))) [For](GetType(IRepositoryWithTypedId(Of ,))).Use(GetType(RepositoryWithTypedId(Of ,))) [For](GetType(INHibernateRepositoryWithTypedId(Of ,))).Use(GetType(NHibernateRepositoryWithTypedId(Of ,))) End Sub Private Sub AddCustomRepositories() Scan(AddressOf SetupCustomRepositories) End Sub Private Shared Sub SetupCustomRepositories(ByVal y As IAssemblyScanner) y.Assembly("DebtRemedy.Core") y.Assembly("DebtRemedy.Data") y.WithDefaultConventions() End Sub Private Sub AddApplicationServices() Scan(AddressOf SetupApplicationServices) End Sub Private Shared Sub SetupApplicationServices(ByVal y As IAssemblyScanner) y.Assembly("DebtRemedy.ApplicationServices") y.With(New FirstInterfaceConvention) End Sub End Class Public Class FirstInterfaceConvention Implements ITypeScanner Public Sub Process(ByVal type As Type, ByVal graph As PluginGraph) Implements ITypeScanner.Process If Not IsConcrete(type) Then Exit Sub End If ''//only works on concrete types Dim firstinterface = type.GetInterfaces().FirstOrDefault() ''//grabs first interface If firstinterface IsNot Nothing Then graph.AddType(firstinterface, type) Else ''//registers type ''//adds concrete types with no interfaces graph.AddType(type) End If End Sub End Class I have tried both ForRequestedType (which I think is now deprecated) and For. IRepository(Of T) lives in SharpArch.Core.PersistenceSupport. Repository(Of T) lives in SharpArch.Data.NHibernate. My servicelocator class Public Class StructureMapServiceLocator Inherits ServiceLocatorImplBase Private container As IContainer Public Sub New(ByVal container As IContainer) Me.container = container End Sub Protected Overloads Overrides Function DoGetInstance(ByVal serviceType As Type, ByVal key As String) As Object Return If(String.IsNullOrEmpty(key), container.GetInstance(serviceType), container.GetInstance(serviceType, key)) End Function Protected Overloads Overrides Function DoGetAllInstances(ByVal serviceType As Type) As IEnumerable(Of Object) Dim objList As New List(Of Object) For Each obj As Object In container.GetAllInstances(serviceType) objList.Add(obj) Next Return objList End Function End Class My controllerfactory class Public Class ServiceLocatorControllerFactory Inherits DefaultControllerFactory Protected Overloads Overrides Function GetControllerInstance(ByVal requestContext As RequestContext, ByVal controllerType As Type) As IController If controllerType Is Nothing Then Return Nothing End If Try Return TryCast(ObjectFactory.GetInstance(controllerType), Controller) Catch generatedExceptionName As StructureMapException System.Diagnostics.Debug.WriteLine(ObjectFactory.WhatDoIHave()) Throw End Try End Function End Class The initialise stuff in my gloabal.asax Dim container As IContainer = New Container(New DefaultRegistry) ControllerBuilder.Current.SetControllerFactory(New ServiceLocatorControllerFactory()) ServiceLocator.SetLocatorProvider(Function() New StructureMapServiceLocator(container)) My test controller Public Class DataCaptureController Inherits BaseController Private ReadOnly clientRepository As IClientRepository() Private ReadOnly pageRepository As IRepository(Of Page) Public Sub New(ByVal clientRepository As IClientRepository(), ByVal pageRepository As IRepository(Of Page)) Check.Require(clientRepository IsNot Nothing, "clientRepository may not be null") Check.Require(pageRepository IsNot Nothing, "pageRepository may not be null") Me.clientRepository = clientRepository Me.pageRepository = pageRepository End Sub Function Index() As ActionResult Return View() End Function The above works fine when I take out everything to do with the pageRepository which is IRepository(Of T). Any help with this would be greatly appreciated.

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  • Single DispatcherServlet with Multiple Controllers

    - by jwmajors81
    I am trying to create some restful web services using Spring MVC 3.0. I currently have an issue that only 1 of my 2 controllers will work at any given time. As it turns out, whichever class comes first when sorted alphabetically will work properly. The error I get is: handleNoSuchRequestHandlingMethod No matching handler method found for servlet request: path '/polinq.xml', method 'GET', parameters map[[empty]] I had a very simliar message earlier also, except instead of the map being empty it was something like map[v--String(array)] Regardless of the message though, currently the LocationCovgController works and the PolicyInquiryController doesn't. If I change the change of the PolicyInquiryController to APolicyInquiryController, then it will start funcitoning properly and the LocationCovgController will stop working. Any assistance would be greatly appreciated. Thank you very much, Jeremy The information provided below includes the skeleton of both controller classes and also the servlet config file that defines how spring should be setup. Controller 1 package org.example; @Controller @RequestMapping(value = "/polinq.*") public class PolicyInquiryController { @RequestMapping(value = "/polinq.*?comClientId={comClientId}") public ModelAndView getAccountSummary( @PathVariable("comClientId") String commercialClientId) { // setup of variable as was removed. ModelAndView mav = new ModelAndView("XmlView", BindingResult.MODEL_KEY_PREFIX + "accsumm", as); return mav; } } Controller 2 package org.example; @Controller @RequestMapping(value = "/loccovginquiry.*") public class LocationCovgController { @RequestMapping(value = "/loccovginquiry.*method={method}") public ModelAndView locationCovgInquiryByPolicyNo( @PathVariable("method")String method) { ModelAndView mav = new ModelAndView("XmlView", BindingResult.MODEL_KEY_PREFIX + "loccovg", covgs); return mav; } } Servlet Config <context:component-scan base-package="org.example." /> <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver" p:order="0"> <property name="mediaTypes"> <map> <entry key="atom" value="application/atom+xml"/> <entry key="xml" value="application/xml"/> <entry key="json" value="application/json"/> <entry key="html" value="text/html"/> </map> </property> <property name="defaultContentType" value="text/html"/> <property name="ignoreAcceptHeader" value="true"/> <property name="favorPathExtension" value="true"/> <property name="viewResolvers"> <list> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/"/> <property name="suffix" value=".jsp"/> </bean> </list> </property> <property name="defaultViews"> <list> <bean class="org.springframework.web.servlet.view.json.MappingJacksonJsonView"/> </list> </property> </bean> <bean class="org.springframework.web.servlet.view.BeanNameViewResolver" /> <bean id="XmlView" class="org.springframework.web.servlet.view.xml.MarshallingView"> <property name="marshaller" ref="marshaller"/> </bean> <oxm:jaxb2-marshaller id="marshaller"> <oxm:class-to-be-bound name="org.example.policy.dto.AccountSummary"/> <oxm:class-to-be-bound name="org.example.policy.dto.InsuredName"/> <oxm:class-to-be-bound name="org.example.policy.dto.Producer"/> <oxm:class-to-be-bound name="org.example.policy.dto.PropertyLocCoverage"/> <oxm:class-to-be-bound name="org.example.policy.dto.PropertyLocCoverages"/> </oxm:jaxb2-marshaller>

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  • What is "read operations inside transactions can't allow failover" ?

    - by Kenyth
    From time to time I got the following exception message on GAE for my GAE/J app. I searched with Google, no relevant results were found. Does anyone know about this? Thanks in advance for any response! The exception message is as below: Nested in org.springframework.orm.jpa.JpaSystemException: Illegal argument; nested exception is javax.persistence.PersistenceException: Illegal argument: java.lang.IllegalArgumentException: read operations inside transactions can't allow failover at com.google.appengine.api.datastore.DatastoreApiHelper.translateError(DatastoreApiHelper.java: 34) at com.google.appengine.api.datastore.DatastoreApiHelper.makeSyncCall(DatastoreApiHelper.java: 67) at com.google.appengine.api.datastore.DatastoreServiceImpl $1.run(DatastoreServiceImpl.java:128) at com.google.appengine.api.datastore.TransactionRunner.runInTransaction(TransactionRunner.java: 30) at com.google.appengine.api.datastore.DatastoreServiceImpl.get(DatastoreServiceImpl.java: 111) at com.google.appengine.api.datastore.DatastoreServiceImpl.get(DatastoreServiceImpl.java: 84) at com.google.appengine.api.datastore.DatastoreServiceImpl.get(DatastoreServiceImpl.java: 77) at org.datanucleus.store.appengine.RuntimeExceptionWrappingDatastoreService.get(RuntimeExceptionWrappingDatastoreService.java: 53) at org.datanucleus.store.appengine.DatastorePersistenceHandler.get(DatastorePersistenceHandler.java: 94) at org.datanucleus.store.appengine.DatastorePersistenceHandler.get(DatastorePersistenceHandler.java: 106) at org.datanucleus.store.appengine.DatastorePersistenceHandler.fetchObject(DatastorePersistenceHandler.java: 464) at org.datanucleus.state.JDOStateManagerImpl.loadUnloadedFieldsInFetchPlan(JDOStateManagerImpl.java: 1627) at org.datanucleus.state.JDOStateManagerImpl.loadFieldsInFetchPlan(JDOStateManagerImpl.java: 1603) at org.datanucleus.ObjectManagerImpl.performDetachAllOnCommitPreparation(ObjectManagerImpl.java: 3192) at org.datanucleus.ObjectManagerImpl.preCommit(ObjectManagerImpl.java: 2931) at org.datanucleus.TransactionImpl.internalPreCommit(TransactionImpl.java: 369) at org.datanucleus.TransactionImpl.commit(TransactionImpl.java:256) at org.datanucleus.jpa.EntityTransactionImpl.commit(EntityTransactionImpl.java: 104) at org.datanucleus.store.appengine.jpa.DatastoreEntityTransactionImpl.commit(DatastoreEntityTransactionImpl.java: 55) at name.kenyth.playtweets.service.Tx.run(Tx.java:39) at name.kenyth.playtweets.web.controller.TwitterApiController.persistStatus(TwitterApiController.java: 309) at name.kenyth.playtweets.web.controller.TwitterApiController.processStatusesForWebCall(TwitterApiController.java: 271) at name.kenyth.playtweets.web.controller.TwitterApiController.getHomeTimelineUpdates_aroundBody0(TwitterApiController.java: 247) at name.kenyth.playtweets.web.controller.TwitterApiController $AjcClosure1.run(TwitterApiController.java:1) at name.kenyth.playtweets.web.refine.AuthenticationEnforcement.ajc $around$name_kenyth_playtweets_web_refine_AuthenticationEnforcement $2$439820b7proceed(AuthenticationEnforcement.aj:1) at name.kenyth.playtweets.web.refine.AuthenticationEnforcement.ajc $around$name_kenyth_playtweets_web_refine_AuthenticationEnforcement $2$439820b7(AuthenticationEnforcement.aj:168) at name.kenyth.playtweets.web.controller.TwitterApiController.getHomeTimelineUpdates(TwitterApiController.java: 129) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Method.java:43) at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.doInvokeMethod(HandlerMethodInvoker.java: 710) at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java: 167) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java: 414) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java: 402) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java: 771) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java: 716) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java: 647) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java: 552) at javax.servlet.http.HttpServlet.service(HttpServlet.java:693) at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: 511) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java: 390) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java: 216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java: 182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java: 765) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: 418) at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:327) at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126) at org.tuckey.web.filters.urlrewrite.NormalRewrittenUrl.doRewrite(NormalRewrittenUrl.java: 195) at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java: 159) at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java: 141) at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java: 90) at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java: 417) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java: 71) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java: 76) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java: 88) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java: 76) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java: 97) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java: 35) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java: 43) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java: 388) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java: 216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java: 182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java: 765) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: 418) at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java: 238) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: 152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: 542) at org.mortbay.jetty.HttpConnection $RequestHandler.headerComplete(HttpConnection.java:923) at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java: 76) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java: 135) at com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java: 250) at com.google.apphosting.base.RuntimePb$EvaluationRuntime $6.handleBlockingRequest(RuntimePb.java:5838) at com.google.apphosting.base.RuntimePb$EvaluationRuntime $6.handleBlockingRequest(RuntimePb.java:5836) at com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingApplicationHandler.java: 24) at com.google.net.rpc.impl.RpcUtil.runRpcInApplication

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  • Gui problem after rewriting to MVC

    - by trevor_nise
    I'm practicing MVC style programming. I have a Mastermind game in a single file, working with no problems (maybe apart of the fact that "Check" button is invisible at start). http://paste.pocoo.org/show/226726/ But when I've rewritten it to model, view, controller files - when I click on empty Pin (that should be updated, and repainted with new color) - noting happens. Can anybody see any problems here ? I've tried placing repaint() in different places, but it simply does not work at all :/ Main : public class Main { public static void main(String[] args){ Model model = new Model(); View view = new View("Mastermind", 400, 590, model); Controller controller = new Controller(model, view); view.setVisible(true); } } Model : import java.util.Random; public class Model{ static final int LINE = 5, SCORE = 10, OPTIONS = 20; Pin pins[][] = new Pin[21][LINE]; int combination[] = new int[LINE]; int curPin = 0; int turn = 1; Random generator = new Random(); int repaintPin; boolean pinsRepaint=false; int pinsToRepaint; boolean isUpdate = true, isPlaying = true, isRowFull = false; static final int HIT_X[] = {270,290,310,290,310}, HIT_Y[] = {506,496,496,516,516}; public Model(){ for ( int i=0; i < SCORE; i++ ){ for ( int j = 0; j < LINE; j++ ){ pins[i][j] = new Pin(20,0); pins[i][j].setPosition(j*50+30,510-i*50); pins[i+SCORE][j] = new Pin(8,0); pins[i+SCORE][j].setPosition(HIT_X[j],HIT_Y[j]-i*50); } } for ( int i=0; i < LINE; i++ ){ pins[OPTIONS][i] = new Pin( 20, i+2 ); pins[OPTIONS][i].setPosition( 370,i * 50 + 56); } } void fillHole(int color) { pins[turn-1][curPin].setColor(color+1); pinsRepaint = true; pinsToRepaint = turn; curPin = (curPin+1) % LINE; if (curPin == 0){ isRowFull = true; } pinsRepaint = false; pinsToRepaint = 0; } void check() { int junkPins[] = new int[LINE], junkCode[] = new int[LINE]; int pinCount = 0, pico = 0; for ( int i = 0; i < LINE; i++ ) { junkPins[i] = pins[turn-1][i].getColor(); junkCode[i] = combination[i]; } for ( int i = 0; i < LINE; i++ ){ if (junkPins[i]==junkCode[i]) { pins[turn+SCORE][pinCount].setColor(1); pinCount++; pico++; junkPins[i] = 98; junkCode[i] = 99; } } for ( int i = 0; i < LINE; i++ ){ for ( int j = 0; j < LINE; j++ ) if (junkPins[i]==junkCode[j]) { pins[turn+SCORE][pinCount].setColor(2); pinCount++; junkPins[i] = 98; junkCode[j] = 99; j = LINE; } } pinsRepaint = true; pinsToRepaint = turn + SCORE; pinsRepaint = false; pinsToRepaint=0; if ( pico == LINE ){ isPlaying = false; } else if ( turn >= 10 ){ isPlaying = false; } else{ curPin = 0; isRowFull = false; turn++; } } void combination() { for ( int i = 0; i < LINE; i++ ){ combination[i] = generator.nextInt(6) + 1; } } } class Pin{ private int color, X, Y, radius; public Pin(){ X = 0; Y = 0; radius = 0; color = 0; } public Pin( int r,int c ){ X = 0; Y = 0; radius = r; color = c; } public int getX(){ return X; } public int getY(){ return Y; } public int getRadius(){ return radius; } public void setRadius(int r){ radius = r; } public void setPosition( int x,int y ){ this.X = x ; this.Y = y ; } public void setColor( int c ){ color = c; } public int getColor() { return color; } } View: import java.awt.*; import javax.swing.*; public class View extends Frame{ Model model; JButton checkAnswer; private JPanel button; private static final Color COLORS[] = {Color.black, Color.white, Color.red, Color.yellow, Color.green, Color.blue, new Color(7, 254, 250)}; public View(String name, int w, int h, Model m){ model = m; setTitle( name ); setSize( w,h ); setResizable( false ); this.setLayout(new BorderLayout()); button = new JPanel(); button.setSize( new Dimension(400, 100)); button.setVisible(true); checkAnswer = new JButton("Check"); checkAnswer.setSize( new Dimension(200, 30)); button.add( checkAnswer ); this.add( button, BorderLayout.SOUTH); button.setVisible(true); } @Override public void paint( Graphics g ) { g.setColor( new Color(238, 238, 238)); g.fillRect( 0,0,400,590); for ( int i=0; i < model.pins.length; i++ ) { paintPins(model.pins[i][0],g); paintPins(model.pins[i][1],g); paintPins(model.pins[i][2],g); paintPins(model.pins[i][3],g); paintPins(model.pins[i][4],g); } } @Override public void update( Graphics g ) { if ( model.isUpdate ) { paint(g); } else { model.isUpdate = true; paintPins(model.pins[model.repaintPin-1][0],g); paintPins(model.pins[model.repaintPin-1][1],g); paintPins(model.pins[model.repaintPin-1][2],g); paintPins(model.pins[model.repaintPin-1][3],g); paintPins(model.pins[model.repaintPin-1][4],g); } } void repaintPins( int pin ) { model.repaintPin = pin; model.isUpdate = false; repaint(); } public void paintPins(Pin p, Graphics g ){ int X = p.getX(); int Y = p.getY(); int color = p.getColor(); int radius = p.getRadius(); int x = X-radius; int y = Y-radius; if (color > 0){ g.setColor( COLORS[color]); g.fillOval( x,y,2*radius,2*radius ); } else{ g.setColor( new Color(238, 238, 238) ); g.drawOval( x,y,2*radius-1,2*radius-1 ); } g.setColor( Color.black ); g.drawOval( x,y,2*radius,2*radius ); } } Controller: import java.awt.*; import java.awt.event.*; public class Controller implements MouseListener, ActionListener { private Model model; private View view; public Controller(Model m, View v){ model = m; view = v; view.addWindowListener( new WindowAdapter(){ public void windowClosing(WindowEvent e){ System.exit(0); } }); view.addMouseListener(this); view.checkAnswer.addActionListener(this); model.combination(); } public void actionPerformed( ActionEvent e ) { if(e.getSource() == view.checkAnswer){ if(model.isRowFull){ model.check(); } } } public void mousePressed(MouseEvent e) { Point mouse = new Point(); mouse = e.getPoint(); if (model.isPlaying){ if (mouse.x > 350) { int button = 1 + (int)((mouse.y - 32) / 50); if ((button >= 1) && (button <= 5)){ model.fillHole(button); if(model.pinsRepaint){ view.repaintPins( model.pinsToRepaint ); } } } } } public void mouseClicked(MouseEvent e) {} public void mouseReleased(MouseEvent e){} public void mouseEntered(MouseEvent e) {} public void mouseExited(MouseEvent e) {} }

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  • LSI RAID monitor reports "Consistency Check inconsistency logging disabled"

    - by carlpett
    I have a server with a LSI MegaRAID 9261-8i controller. Recently I started getting alerts like this one: Controller ID: 1 Consistency Check inconsistency logging disabled, too many inconsistencies on VD: 0 Generated on:Sat May 12 04:06:40 2012 SYSTEM DETAILS--- IP Address: 192.168.1.29 OS Name: Windows 7 x64 OS Version: 6.01 Driver Name: megasas.sys Driver Version: 4.5.1.64 IMAGE DETAILS--- BIOS Version: 2.120.33-1197 Firmware Package Version: 12.12.0-0045 Firmware Version: 3.21.00_4.11.05.00_0x05000000 VD 0 is a RAID mirror containing the system disk. I have searched and read, but cannot find any trace of how to actually do anything about this. I tried running a scandisk but that did not find anything (as I expected, since scandisk reads the disks as exposed by the controller, right?). The MegaRAID Storage Manager does not as far as I can see have any options for checking or fixing physical disks. The program claims the VD is "healty", and both disks have Error count 0. Also a bit strange is the System details in the message... The IP address is associated with the RAS (dial in) interface, and the OS should be Windows Server 2011 SBS. Has anyone else experienced this before? What can be done?

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  • certutil -ping fails with 30 seconds timeout - what to do?

    - by mark
    The certificate store on my Win7 box is constantly hanging. Observe: C:\1.cmd C:\certutil -? | findstr /i ping -ping -- Ping Active Directory Certificate Services Request interface -pingadmin -- Ping Active Directory Certificate Services Admin interface C:\set PROMPT=$P($t)$G C:\(13:04:28.57)certutil -ping CertUtil: -ping command FAILED: 0x80070002 (WIN32: 2) CertUtil: The system cannot find the file specified. C:\(13:04:58.68)certutil -pingadmin CertUtil: -pingadmin command FAILED: 0x80070002 (WIN32: 2) CertUtil: The system cannot find the file specified. C:\(13:05:28.79)set PROMPT=$P$G C:\ Explanations: The first command shows you that there are –ping and –pingadmin parameters to certutil Trying any ping parameter fails with 30 seconds timeout (the current time is seen in the prompt) This is a serious problem. It screws all the secure communication in my app. If anyone knows how this can be fixed - please share. Thanks. P.S. 1.cmd is simply a batch of these commands: certutil -? | findstr /i ping set PROMPT=$P($t)$G certutil -ping certutil -pingadmin set PROMPT=$P$G EDIT1 I have succeeded to pin down the single windows API that causes the problem - DsGetDcName According to the windbg, the certutil -ping invokes it like so: PDOMAIN_CONTROLLER_INFO pdci; DWORD ret = ::DsGetDcName(NULL, NULL, NULL, NULL, DS_DIRECTORY_SERVICE_PREFERRED, &pdci); On my workstation it times out for 30 seconds and then returns error code 1355, which is ERROR_NO_SUCH_DOMAIN No domain controller is available for the specified domain or the domain does not exist. On another machine, which is accidentally a windows server 2003, it returns almost immediately with the correct domain controller name inside the returned DOMAIN_CONTROLLER_INFO structure. Now the question is what is missing on my workstation for that API to find the correct domain controller?

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  • Desktop SATA drives in SATA <-> FC array

    - by chris
    Let's assume you've got a box like one of these with space for 24 SATA disks. What are the best bits of advice for deploying this? For instance, should you be greedy and go for the 1.5 or 2tb disks or are they just not reliable enough to be used in an array like this and you should stick with 640gb or 750gb disks instead? Also, I know that FC (or generically, "enterprise class") disks have a different error recovery strategy than desktop disks. An enterprise disk will fail a read quickly and report to the controller that it wasn't able to read that block, and the RAID controller will quickly regenerate the info from the parity disk and mark the block as bad. A desktop disk, on the other hand, will try and try and try again to get the data, and in pathological cases this may cause a raid controller to fail the whole disk because the read operation times out. So there are a couple aspects to this question: What's the best sort of disk to get today? (ie specific disks on the market in Feb 2010) Generically, what should someone look for when trying to buy something like this that kinda walks the line between enterprise and consumer? Lastly -- is there anything that can be done with current "consumer" disks to make them more suitable for array use? IE can you use a SMART configuration to change the error recovery strategy used by the disk? Thanks!

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  • IPMI not fucntioning with Network Bonding

    - by muhammed sameer
    Hey, I am having problems with running IPMI on my servers that have network bonding enabled. Platform: CentOS release 5.3 (Final) Kernel: 2.6.18-92.el5 64bit Dell PowerEdge 1950 Ethernet controller: Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet I have bonded the interface eth0 and eth1 as active passive, with eth0 as the active interface, below is conf description from /proc Bonding Mode: fault-tolerance (active-backup) Primary Slave: eth0 Currently Active Slave: eth0 MII Status: up MII Polling Interval (ms): 30 Up Delay (ms): 0 Down Delay (ms): 0 Slave Interface: eth0 MII Status: up Link Failure Count: 0 Permanent HW addr: 00:22:19:56:b9:cd Slave Interface: eth1 MII Status: up Link Failure Count: 0 Permanent HW addr: 00:22:19:56:b9:cf My IPMI device is as follows IPMI Device Information Interface Type: KCS (Keyboard Control Style) Specification Version: 2.0 I2C Slave Address: 0x10 NV Storage Device: Not Present Base Address: 0x0000000000000CA8 (I/O) Register Spacing: 32-bit Boundaries I Have used openIPMI as well as freeipmi both to control the chassis via the IPMI card, but on servers which have bonding enabled, the command times out, below is the full run of the command with debug info. ipmi_lan_send_cmd:opened=[0], open=[4482848] IPMI LAN host 70.87.28.115 port 623 Sending IPMI/RMCP presence ping packet ipmi_lan_send_cmd:opened=[1], open=[4482848] No response from remote controller Get Auth Capabilities command failed ipmi_lan_send_cmd:opened=[1], open=[4482848] No response from remote controller Get Auth Capabilities command failed Error: Unable to establish LAN session Failed to open LAN interface Unable to get Chassis Power Status On the other hand I configured IPMI on a box with the same specs as mentioned above without bonding and IPMI works perfectly. Has anyone faced this problem with IPMI + Bonding ? I would be thankful is someone helps circumvent this issue. Muhammed Sameer

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  • SAS vs Near-line SAS vs SATA

    - by David
    I'm unsure about the differences in these storage interfaces. My Dell servers all have SAS RAID controllers in them and they seem to be cross-compatible to an extent. The Ultra-320 SCSI RAID controllers in my old servers were simple enough: One type of interface (SCA) with special drives with special controllers, humming at 10-15K RPM. But these SAS/SATA drives seem like the drives I have in my desktop, only more expensive. Also my old SCSI controllers have their own battery backup and DDR buffer - neither of these things are present on the SAS controllers. What's up with that? "Enterprise" SATA drives are compatible with my SAS RAID controller, but I'd like to know what advantage SAS drives have over SATA drives as they seem to have similar specs (but one is a lot cheaper). Also, how do SSDs fit into this? I remember when RAID controllers required HDDs to spin at the same rate (as if the controller card supplanted the controller in the drive) - so how does that work out now? And what's the deal with Near-line SATA? I apologise about the rambling tone in this message, it's 5am and I haven't slept much.

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  • Inter-vlan routing issues

    - by DKNUCKLES
    I've been brought in to help administer a network and I've run into an issue - I'm not sure why this one is beyond me, however I figure an extra set of eyes on the problem may help resolve the issue. I have an HP MSM720 controller and at the time I'm trying to set up a basic hotspot set up with access points. For the time being I'm just looking to have people authenticate with a PSK and access the internet and other resources (namely printers) on other vlans. The user authenticates and the DHCP server on the controller gives them a 192.168.1.0/24 address. They are able to successfully browse the internet and ping machines on other networks, however they are unable to print to network printers that sit on the same LANs as the very computers that wireless clients can ping. The (extremely simplified) topology is as follows Computers on the wireless 192.168.1.1 network are able to ping computers on the 192.168.0.0 network, however cannot ping or print to the printers on the same network. I'm baffled and I have no idea why this is the case. Can anyone shed some light on this for me? Can someone spot the error of my configuration? EDIT : It should be noted that for whatever reason other computers on the 10.0.100.0/24 network cannot even ping the gateway of the Wireless Access network (192.168.1.1) - I'm not sure if this is relevant. These are the VLANS listed on the controller.

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  • ZFS: Mirror vs. RAID-Z

    - by John Clayton
    I'm planning on building a file server using OpenSolaris and ZFS that will provide two primary services - be an iSCSI target for XenServer virtual machines & be a general home file server. The hardware I'm looking at includes 2x 4-port SATA controllers, 2x small boot drives (one on each controller), and 4x big drives for storage. This allows one free port per controller for upgrading the array down the road. Where I'm a little confused is how to setup the storage drives. For performance, mirroring appears to be king. I'm having a hard time seeing what the benefit would be of using RAIDZ over mirroring would be. With this setup I can see two options - two mirrored pools in one stripe, or RAIDZ2. Both should protect against 2 drive failures, and/or one controller failure...the only benefit of RAIDZ2 would be that any 2 drives could fail. The storage should be 50% of capacity in both cases, but the first should have much better performance, right? The other thing I'm trying to wrap my mind around is the benefit of mirrored arrays with more than two devices. For data integrity what, if any, would be the benefit of a RAIDZ over a three-way mirror? Since ZFS maintains file integrity what does RAIDZ bring to the table...doesn't ZFS's integrity checks negate the value of RAIDZ's parity?

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  • Raid-1 Western Digital Green AARS, cloning and WD Align Utility

    - by Jaguar
    Hello all, My current setup runs on top of 2x Western Digital 2500KS drives on Raid-1, using the motherboard's 780G raid controller, on WinXP. Everything is fine, but the drives are a bit noisy. I am considering buying 2x WD6400AARS disks which are the 640GB slower 'green' drives, but also feature the Advanced Formatting 4KB sectors. This means that for WinXP the partition will have to be aligned to work properly, else there is a performance penalty. There are 2 questions here: The Green drives from WD are all slower and are (according to WD) susceptible to drop-out's from the controller. Has anyone any experience in this matter? Is there a possibility the controller will drop a drive? If so, can i do anything about it? Secondly, western digital gives a utility to perform the alignment on the partition. The thing is, will the utility see the drives in question as the operating system only sees 1 logical disk? I will be making the transition using a cloning tool (most probably norton ghost) unless i don't find a solution or a clear answer, in which case i'll just buy a win 7 license and make a clean install... thx in advance

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  • Troubleshooting wireless connection problem / site survey?

    - by johnnyb10
    I just started in the IT department of a small company (200 users) and it's clear that one of the main problems that is driving everyone crazy is the spotty nature of the wireless connectivity throughout the office, particularly in certain conference rooms. This is a huge problem because the connection often drops during important presentations to clients. I was hired to help ease the load on the existing IT admin, who has done a great job, but is overloaded with many other tasks to deal with. So I would like to try to help out with this wireless issue. I am looking for advice on the best way to solve this problem--a realistic troubleshooting methodology that does not require me to spend any money. So far, I've experimented with Ekahau Heat Mapper, which is free and helps create a site survey. But I'm not exactly sure what I'm looking for or if there are other programs/tools/methods I should try as well. Any advice would be greatly appreciated. [Some background: The wireless setup consists of an HP ProCurve Mobility MSM (710?) controller that controls 10 access points throughout the building. There are three virtual wireless networks configured on the controller: one seems to be a default that cannot be changed, one is for internal employees and authenticates via Active Directory, and the third is a guest network for visitors. When I use HeatMapper, these show up as three different SSIDs, with different MAC addresses, all on the same channel. At first I thought maybe this would cause interference, but this seems to be the way the controller works;apparently, it automatically configures the channels to avoid interference from the other APs on the network.]

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  • can't access SATA card config screen on boot, nor access the disks

    - by Ronald
    We've just upgraded our file server using an ASUS P6T WS Pro board, running FreeBSD-RELEASE 8.2 and using zfs to manage 12 WD20EARS disks. Since our 3ware card has been giving us trouble we started using the six on-board SATA connectors and got a SuperMicro USAS2-L8i to provide eight more ports. Mechanically, the card is an awkward fit but electrically it all seems ok. Upon boot, the LSI controller shows up and states that pressing ctrl-c will bring up the LSI Config Utility. When doing that, the message changes to state that the utility will be started after initialization, however that never happens. There does seem to be an error message that's only displayed too briefly to read and seems to be about PCI and "not enough space". (That message is pushed off by a hardware summary and I've found no way to scroll back at this point.) The disks do not show up in any recognizable ways after booting, either. I found a hint in another discussion to check the address mapping on either the card or the motherboard BIOS, but have found no way to do that. So what I tried on a hunch is to disable everything that's on-board, including network adapters, Firewire controller and SATA. In fact, after doing that, I can successfully launch the LSI Config Utility. As far as I can tell, all looks well in there, and when booting in that configuration it also displays a list of the disks connected to it, which looks just fine as well. Only problem now is that I can't boot that way, because I need the on-board SATA controller and network adapters. As soon as I re-enable any of them I'm back to square one. That discussion I mentioned about mapping addresses said to try D000, then D7FF, then DFFF, in order. The LSI Config Utility shows the card address as D000 but offers no way of changing it. Any tips or insights would be appreciated.

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