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• Core Data Inferred Migration – Automatic "lightweight" vs Manual

  - by ohhorob

  I've updated the model of an existing iPhone app in some simple ways (remove attribute, add attribute, remove index), and can use automatic lightweight migration to migrate the persistent store. Due to the typical size of the data set, the processing time is not insignificant, and warrants feedback for the user. NSMigrationManager provides a simple but useful migrationProgress value that sends KVO notifications as the migration is performed. That forms the basis of providing feedback, however attempting to use an inferred model ([NSMappingModel inferredMappingModelForSourceModel:destinationModel:error:]) results in drastically different timing for the exact same dataset. Profile results on and original iPhone (2G) Automatic inferred lightweight migration PROFILE: CacheManager -migrateStore PROFILE: 0.6130 (+0.6130) models loaded PROFILE: 1.1759 (+0.5629) delegate -CacheManagerWillMigrate: PROFILE: 1.2516 (+0.0757) persistent store coordinator loaded PROFILE: 5.1436 (+3.8920) automatic lightweight migration completed PROFILE: 5.5435 (+0.3999) delegate -CacheManagerDidFinishMigration:withError: Manual inferred migration PROFILE: CacheManager -migrateStore PROFILE: 0.6660 (+0.6660) models loaded PROFILE: 1.1471 (+0.4811) inferred mapping model generated PROFILE: 1.4046 (+0.2574) delegate -CacheManagerWillMigrate: PROFILE: 1.5058 (+0.1013) persistent store coordinator loaded PROFILE: 22.6952 (+21.1894) manual migration completed PROFILE: 23.1478 (+0.4525) delegate -CacheManagerDidFinishMigration:withError: So, with an inferred model, the manual migration takes over 5 times longer than automatic! It's a big inconsistency, and the lightweight option that NSPersistentStoreCoordinator -addPersistentStoreWithType:configuration:URL:options:error: provides absolutely no indication of progress while processing. Can anybody provide a supported way to get the migrationProgress values during automatic migration, OR a way to configure an inferred mapping model to be as fast during manual processing as automatic?

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• Windows Server 2012 Migration (DNS/AD DS Standard Eval to Essentials OEM) P2V -> Do I need a Secondary Domain Controller during migration?

  - by Aubrey Robertson

  This is my first post on this exchange (although not my first on stack exchange), so please have patience. I am a 3rd year student intern, and I have been tasked with virtualizing the server systems at the company I work for. I have come a long way, and I am almost ready to install the VM Server in migration mode. Here is some information: Source Server: Windows Server 2012 Standard Evaluation DNS Server (local only) Advanced Directory Domain Services File and Storage stuff A few other server roles Destination Server: Windows Server 2012 Essentials OEM (Hyper-V client) Running under a temporary Hyper-V host (will migrate the Hyper-V host back to the old machine after the original server is virtualized as a client). Sitting currently at the "Select Installation Mode" screen. I have been following the guides on Microsoft tech net, and today I spent most of the day getting rid of issues in the Best Practices Analyser on the source machine. I have 3 remaining issues (which are all related): ERROR: DNS: DNS servers on Ethernet (adapter name) should include the loopback address, but not as the first entry (flavour text indicates that, during migration, the DNS server may not be found) WARNING: All domains should have at least two domain controllers for redundancy. WARNING: DNS: Ethernet should be configured to use both a preferred and an alternate DNS Server. All of these issues can be resolved by deploying a secondary domain controller, but I have never done that before (see my concerns below). The main issue here that I am concerned with for installing in migration mode is the FIRST one (the error). If I try and set-up the new server deployment, and the adapter domain controller is listed as localhost, then this may cause the installation to fail. (at least, this is what the Microsoft documentation suggests). But I do not have another IP address to enter here as I have no other local domain controllers. So I did the first obvious thing that came to my mind, and tried to use Google DNS servers as my alternates. That did not work because they couldn't recognize other computers in the "forest". Now I'm no expert when it comes to DNS, so please forgive my ignorance. This DNS server is concerned only with Active Directory stuffs for the local network. If I go ahead with migration, and it fails, then I will just have to go ahead and install a secondary DNS server I suppose. The problem I have here is that I am limited by the amount of Windows Server keys I have available (I have 2); however, I do have access to a Linux box running Debian Wheezy that I set-up two weeks ago as a Mantis server. I could install Windows Server 2012 as a secondary DNS (I think) in a VM and use that, but then it seems like I will be wasting time, and probably the Windows key too, and if there's another way to do it with Linux that would be much better. Even better still, do I even need a secondary DNS server for migration at all? The hints said that during migration the original machine "might" not be found. Thank you for your time and consideration.

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• Things to keep in mind during Application Migration: ColdFusion to Spring

  - by Rachel

  This question is regarding migration project. Currently the legacy Application is in ColdFusion and we want to migrate it to Spring Framework. So my main questions are: What are the things to keep in mind while considering Migration Project ? Are there any specifics things that I need to keep in mind while considering migration from ColdFusion to Spring Framework ? How do ColdFusion stack up with Spring Framework ? What resources would you recommend to get myself familiar with before starting on Migration Project from ColdFusion to Spring ? I know some might think that this is very open ended question but this is my first Migration Project and I have never had any experience with Migration Project and what looking for some useful guidance over here.

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• South migration error: NoMigrations exception for django.contrib.auth

  - by danpalmer

  I have been using South on my project for a while, but I recently did a huge amount of development and changed development machine and I think something messed up in the process. The project works fine, but I can't apply migrations. Whenever I try to apply a migration I get the following traceback: danpalmer:pest Dan$ python manage.py migrate frontend 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 222, in execute output = self.handle(*args, **options) File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/management/commands/migrate.py", line 102, in handle delete_ghosts = delete_ghosts, File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/migration/__init__.py", line 182, in migrate_app applied = check_migration_histories(applied, delete_ghosts) File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/migration/__init__.py", line 85, in check_migration_histories m = h.get_migration() File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/models.py", line 34, in get_migration return self.get_migrations().migration(self.migration) File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/models.py", line 31, in get_migrations return Migrations(self.app_name) File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/migration/base.py", line 60, in __call__ self.instances[app_label] = super(MigrationsMetaclass, self).__call__(app_label_to_app_module(app_label), **kwds) File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/migration/base.py", line 88, in __init__ self.set_application(application, force_creation, verbose_creation) File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/migration/base.py", line 159, in set_application raise exceptions.NoMigrations(application) south.exceptions.NoMigrations: Application '<module 'django.contrib.auth' from '/Library/Python/2.6/site-packages/django/contrib/auth/__init__.pyc'>' has no migrations. I am not that experienced with South and I haven't met this error before. The only helpful mention I can find online about this error is for pre-0.7 I think and I am on South 0.7. I ran 'easy_install -U South' just to make sure. Thanks for any help that you can provide. I really appreciate it.

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• Detecting a Lightweight Core Data Migration

  - by hadronzoo

  I'm using Core Data's automatic lightweight migration successfully. However, when a particular entity gets created during a migration, I'd like to populate it with some data. Of course I could check if the entity is empty every time the application starts, but this seems inefficient when Core Data has a migration framework. Is it possible to detect when a lightweight migration occurs (possibly using KVO or notifications), or does this require implementing standard migrations? I've tried using the NSPersistentStoreCoordinatorStoresDidChangeNotification, but it doesn't fire when migrations occur.

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• How to switch from Core Data automatic lightweight migration to manual?

  - by Jaanus

  My situation is similar to this question. I am using lightweight migration with the following code, fairly vanilla from Apple docs and other SO threads. It runs upon app startup when initializing the Core Data stack. NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithBool:YES], NSMigratePersistentStoresAutomaticallyOption, [NSNumber numberWithBool:YES], NSInferMappingModelAutomaticallyOption, nil]; NSError *error = nil; NSString *storeType = nil; if (USE_SQLITE) { // app configuration storeType = NSSQLiteStoreType; } else { storeType = NSBinaryStoreType; } persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:[self managedObjectModel]]; // the following line sometimes crashes on app startup if (![persistentStoreCoordinator addPersistentStoreWithType:storeType configuration:nil URL:[self persistentStoreURL] options:options error:&error]) { // handle the error } For some users, especially with slower devices, I have crashes confirmed by logs at the indicated line. I understand that a fix is to switch this to manual mapping and migration. What is the recipe to do that? The long way for me would be to go through all Apple docs, but I don't recall there being good examples and tutorials specifically for schema migration.

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• SBS2003 to SBS2011 Migration - Installation Error

  - by Shawn Gradwell

  Microsoft Small Business Server 2003 to 2011 Migration. I followed the Migration Guide from Microsoft and the source server had no errors when running the various tests prior to the migration. I have completed the destination server setup using the Answer File and the server is up and running. It all looks good, I can access Exchange and AD and the only problem is the error message when you log in stating that the setup did not complete and to check the logs. Because all looks good I am continuing the migration to the destination server. I also have to state that this client does not use Sharepoint at all. Do I have to redo everything? Herewith the logs: [4992] 121016.225454.5905: Task: Starting Add User or Group access VSS registry. [4992] 121016.225454.7645: TaskManagement: In TaskScheduler.RunTasks(): The "ConfigureSharePointVSSRegistryTask" Task threw an Exception during the Run() call:System.Security.Principal.IdentityNotMappedException: Some or all identity references could not be translated. at System.Security.Principal.NTAccount.Translate(IdentityReferenceCollection sourceAccounts, Type targetType, Boolean forceSuccess) at System.Security.Principal.NTAccount.Translate(Type targetType) at System.Security.AccessControl.CommonObjectSecurity.ModifyAccess(AccessControlModification modification, AccessRule rule, Boolean& modified) at System.Security.AccessControl.CommonObjectSecurity.AddAccessRule(AccessRule rule) at Microsoft.WindowsServerSolutions.IWorker.Tasks.ConfigureSharePointVSSRegistryTask.AddUsersToAccessRegistry(List`1 names) at Microsoft.WindowsServerSolutions.IWorker.Tasks.ConfigureSharePointVSSRegistryTask.Run(ITaskDataLink dl) at Microsoft.WindowsServerSolutions.TaskManagement.Data.Task.Run(ITaskDataLink dataLink) at Microsoft.WindowsServerSolutions.TaskManagement.TaskScheduler.RunTasks(String taskListId, String stateFileName) [4992] 121016.225454.7655: Setup: An error was encountered on the TME thread: System.Security.Principal.IdentityNotMappedException: Some or all identity references could not be translated. at System.Security.Principal.NTAccount.Translate(IdentityReferenceCollection sourceAccounts, Type targetType, Boolean forceSuccess) at System.Security.Principal.NTAccount.Translate(Type targetType) at System.Security.AccessControl.CommonObjectSecurity.ModifyAccess(AccessControlModification modification, AccessRule rule, Boolean& modified) at System.Security.AccessControl.CommonObjectSecurity.AddAccessRule(AccessRule rule) at Microsoft.WindowsServerSolutions.IWorker.Tasks.ConfigureSharePointVSSRegistryTask.AddUsersToAccessRegistry(List`1 names) at Microsoft.WindowsServerSolutions.IWorker.Tasks.ConfigureSharePointVSSRegistryTask.Run(ITaskDataLink dl) at Microsoft.WindowsServerSolutions.TaskManagement.Data.Task.Run(ITaskDataLink dataLink) at Microsoft.WindowsServerSolutions.TaskManagement.TaskScheduler.RunTasks(String taskListId, String stateFileName) at Microsoft.WindowsServerSolutions.Setup.SBSSetup.ProgressPagePresenter._RunTasks(Object sender, DoWorkEventArgs e) [4956] 121016.225455.0685: Setup: _UnhandledExceptionHandler: Setup encountered an error: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Reflection.TargetInvocationException: The TME thread failed (see the inner exception). ---> System.Security.Principal.IdentityNotMappedException: Some or all identity references could not be translated. at System.Security.Principal.NTAccount.Translate(IdentityReferenceCollection sourceAccounts, Type targetType, Boolean forceSuccess) at System.Security.Principal.NTAccount.Translate(Type targetType) at System.Security.AccessControl.CommonObjectSecurity.ModifyAccess(AccessControlModification modification, AccessRule rule, Boolean& modified) at System.Security.AccessControl.CommonObjectSecurity.AddAccessRule(AccessRule rule) at Microsoft.WindowsServerSolutions.IWorker.Tasks.ConfigureSharePointVSSRegistryTask.AddUsersToAccessRegistry(List`1 names) at Microsoft.WindowsServerSolutions.IWorker.Tasks.ConfigureSharePointVSSRegistryTask.Run(ITaskDataLink dl) at Microsoft.WindowsServerSolutions.TaskManagement.Data.Task.Run(ITaskDataLink dataLink) at Microsoft.WindowsServerSolutions.TaskManagement.TaskScheduler.RunTasks(String taskListId, String stateFileName) at Microsoft.WindowsServerSolutions.Setup.SBSSetup.ProgressPagePresenter._RunTasks(Object sender, DoWorkEventArgs e) at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument) --- End of inner exception stack trace --- at Microsoft.WindowsServerSolutions.Setup.SBSSetup.ProgressPagePresenter.TasksCompleted(Object sender, RunWorkerCompletedEventArgs e) --- End of inner exception stack trace --- at System.RuntimeMethodHandle._InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeType typeOwner) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks) at System.Delegate.DynamicInvokeImpl(Object[] args) at System.Windows.Forms.Control.InvokeMarshaledCallbackDo(ThreadMethodEntry tme) at System.Windows.Forms.Control.InvokeMarshaledCallbackHelper(Object obj) at System.Threading.ExecutionContext.runTryCode(Object userData) at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Windows.Forms.Control.InvokeMarshaledCallback(ThreadMethodEntry tme) at System.Windows.Forms.Control.InvokeMarshaledCallbacks() at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg) at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData) at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context) at Microsoft.WindowsServerSolutions.Common.Wizards.Framework.WizardChainEngine.Launch() at Microsoft.WindowsServerSolutions.Setup.SBSSetup.MainClass._LaunchWizard() at Microsoft.WindowsServerSolutions.Setup.SBSSetup.MainClass.RealMain(String[] args) at Microsoft.WindowsServerSolutions.Setup.SBSSetup.MainClass.Main(String[] args) [4956] 121016.225455.0865: Setup: Removed the password. [4956] 121016.225455.0905: Setup: Deleting scheduled task at path Microsoft\Windows\Windows Small Business Server 2011 Standard with name Setup [4956] 121016.225455.8055: Setup: Removed SBSSetup from the RunOnce.

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• The Business case for Big Data

  - by jasonw

  The Business Case for Big Data Part 1 What's the Big Deal Okay, so a new buzz word is emerging. It's gone beyond just a buzzword now, and I think it is going to change the landscape of retail, financial services, healthcare....everything. Let me spend a moment to talk about what i'm going to talk about. Massive amounts of data are being collected every second, more than ever imaginable, and the size of this data is more than can be practically managed by today’s current strategies and technologies. There is a revolution at hand centering on this groundswell of data and it will change how we execute our businesses through greater efficiencies, new revenue discovery and even enable innovation. It is the revolution of Big Data. This is more than just a new buzzword is being tossed around technology circles.This blog series for Big Data will explain this new wave of technology and provide a roadmap for businesses to take advantage of this growing trend. Cases for Big Data There is a growing list of use cases for big data. We naturally think of Marketing as the low hanging fruit. Many projects look to analyze twitter feeds to find new ways to do marketing. I think of a great example from a TED speech that I recently saw on data visualization from Facebook from my masters studies at University of Virginia. We can see when the most likely time for breaks-ups occurs by looking at status changes and updates on users Walls. This is the intersection of Big Data, Analytics and traditional structured data. Ted Video Marketers can use this to sell more stuff. I really like the following piece on looking at twitter feeds to measure mood. The following company was bought by a hedge fund. They could predict how the S&P was going to do within three days at an 85% accuracy. Link to the article Here we see a convergence of predictive analytics and Big Data. So, we'll look at a lot of these business cases and start talking about what this means for the business. It's more than just finding ways to use Hadoop + NoSql and we'll talk about that too. How do I start in Big Data? That's what is coming next post.

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• Does Citrix XenServer have storage Migration

  - by Entity_Razer

  I'm trying to find out. I can't seem to find a defenitive yes / no answers so I thought I'd ask the ServerFault community this simple question: Does XenServer (in any version) support Storage migration such as VMWare's Storage VMotion capability, or Hyper-V's storage migration ? I'm trying to do a comparative study of all platforms but I can't find a website (preff. Citrix supported or any other "legit" source) where it say's a defenitive yes or no. Anyone able to answer this one for me ? Cheers !

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• Does Citrix XenServer have storage Migration [closed]

  - by Entity_Razer

  I'm trying to find out. I can't seem to find a defenitive yes / no answers so I thought I'd ask the ServerFault community this simple question: Does XenServer (in any version) support Storage migration such as VMWare's Storage VMotion capability, or Hyper-V's storage migration ? I'm trying to do a comparative study of all platforms but I can't find a website (preff. Citrix supported or any other "legit" source) where it say's a defenitive yes or no. Anyone able to answer this one for me ? Cheers !

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• Core Data migration failing with error: Failed to save new store after first pass of migration

  - by unforgiven

  In the past I had already implemented successfully automatic migration from version 1 of my data model to version 2. Now, using SDK 3.1.3, migrating from version 2 to version 3 fails with the following error: Unresolved error Error Domain=NSCocoaErrorDomain Code=134110 UserInfo=0x5363360 "Operation could not be completed. (Cocoa error 134110.)", { NSUnderlyingError = Error Domain=NSCocoaErrorDomain Code=256 UserInfo=0x53622b0 "Operation could not be completed. (Cocoa error 256.)"; reason = "Failed to save new store after first pass of migration."; } I have tried automatic migration using NSMigratePersistentStoresAutomaticallyOption and NSInferMappingModelAutomaticallyOption and also migration using only NSMigratePersistentStoresAutomaticallyOption, providing a mapping model from v2 to v3. I see the above error logged, and no object is available in the application. However, if I quit the application and reopen it, everything is in place and working. The Core Data methods I am using are the following ones - (NSManagedObjectModel *)managedObjectModel { if (managedObjectModel != nil) { return managedObjectModel; } NSString *path = [[NSBundle mainBundle] pathForResource:@"MYAPP" ofType:@"momd"]; NSURL *momURL = [NSURL fileURLWithPath:path]; managedObjectModel = [[NSManagedObjectModel alloc] initWithContentsOfURL:momURL]; return managedObjectModel; } - (NSManagedObjectContext *) managedObjectContext { if (managedObjectContext != nil) { return managedObjectContext; } NSPersistentStoreCoordinator *coordinator = [self persistentStoreCoordinator]; if (coordinator != nil) { managedObjectContext = [[NSManagedObjectContext alloc] init]; [managedObjectContext setPersistentStoreCoordinator: coordinator]; } return managedObjectContext; } - (NSPersistentStoreCoordinator *)persistentStoreCoordinator { if (persistentStoreCoordinator != nil) { return persistentStoreCoordinator; } NSURL *storeUrl = [NSURL fileURLWithPath: [[self applicationDocumentsDirectory] stringByAppendingPathComponent: @"MYAPP.sqlite"]]; NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithBool:YES], NSMigratePersistentStoresAutomaticallyOption, [NSNumber numberWithBool:YES], NSInferMappingModelAutomaticallyOption, nil]; NSError *error = nil; persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel: [self managedObjectModel]]; if (![persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeUrl options:options error:&error]) { // Handle error NSLog(@"Unresolved error %@, %@", error, [error userInfo]); } return persistentStoreCoordinator; } In the simulator, I see that this generates a MYAPP~.sqlite files and a MYAPP.sqlite file. I tried to remove the MYAPP~.sqlite file, but BOOL oldExists = [[NSFileManager defaultManager] fileExistsAtPath: [[self applicationDocumentsDirectory] stringByAppendingPathComponent: @"MYAPP~.sqlite"]]; always returns NO. Any clue? Am I doing something wrong? Thank you in advance.

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• SBS 2008 BPA Warnings After Migration From SBS 2003

  - by Nicholas Piasecki

  We just finished a we-know-just-enough-to-be-dangerous migration from SBS 2003 to SBS 2008, and things seem to have gone relatively smoothly. After running the SBS 2008 Best Practices Analyzer on the destination server, we've got three warning messages, and I can't tell if they're important or not. First, the easy one: SMTP Port (TCP 25 Status): The Edgetransport.exe process should listen on SMTP port 25, but that port is owned by the process. I don't think that this one is a big deal--e-mail is flowing through the SMTP connector. Since there are two spaces between "the" and "process," I'm assuming that for some reason BPA just couldn't figure out the owning process name and this is just some sloppy programming when displaying the message. (Indeed, on subsequent runs of the BPA this message goes away, and other times it comes back.) Now, two more scary sounding ones: No DNS name server records: There are no DNS name server (NS) resource records in the _msdcs sub-domain in the forward lookup zone for Windows SBS 2008. and, similarly, No DNS name server records: There are no DNS name server (NS) resource records in the _msdcs zone for Windows SBS 2008. Now for these two, everything appears to be functioning correctly--but I'm assuming this is a weird state as a result of the SBS 2003 to 2008 migration. Can anyone provide any pointers on how to fix it, or whether or not it can be safely ignored? Thanks!

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• Website migration from WordPress to a static site and doing 301 redirects without access to existing site?

  - by user3114468

  Currently working on a project that is a hosted on WordPress that is being migrated to a static site. However I presently do not have access to the existing site as it's managed by another developer. The concern is not the lack of having access to content as the site owner has generated very little content (reason for migration) and we were able to do this manually. Rather the concern is to do 301 redirects. The site will not change domains but URLs such as from example.com/?page_id=3 to example.com/services. To add, the site is migrating to new server using same domain name. I thought maybe this could be done via editing permalinks prior to migration and WordPress would update automatically if configured to write on server. But if not configured (as this is not always the case) I do not have htaccess to fix it in case there are suddenly a bunch of 404 errors for every page. Really could use some help on the best procedure to follow in this case. This is the first migration project I've worked on.

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• Rails migration to add boolean column to Postgres on Heroku

  - by pmc255

  I'm trying to execute a simple Rails migration to add a boolean column to an existing table. Here's the add_column call: add_column :users, :soliciting, :boolean, :null => false, :default => false However, after the migration runs (successfully, with no errors), I don't see the new column. If I go into the console and list the columns on the User table, for example, with this command: >> User.columns.each { |c| puts "#{c.name} : #{c.type}" } All the other columns show up, but not the one I just added with the migration. What's even more strange is that looking up a random user object yields the Postgres version of booleans (Ruby strings) >> User.find(1).soliciting => "t" However, the existing boolean columns all show up with standard Ruby boolean values of true and false. What's going on here? Is the migration actually complete? Why doesn't the column show up, yet is accessible in the model objects?

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• Execute a Rake task from within migration?

  - by Fabiano PS

  I have a Rake task that loads configuration data into the DB from a file, is there a correct ruby/rails way to call it on a migration up? My objective is to sync my team DB configs, without have to broadcast then to run the migration lalala def self.up change_table :fis_situacao_fiscal do |t| t.remove :mostrar_endereco t.rename :serie, :modelo end Faturamento::Cfop.destroy_all() #perform rake here ! end btw: Admins could clean up some tags? there is 'migrations' and 'migration', same as 'ruby-on-rails' and 'rails'

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• Way to view Rails Migration output

  - by Ganesh Shankar

  Is there an easy way to see the actual SQL generated by a rails migration? I have a situation where a migration to change a column type worked on my local development machine by partially failed on the production server. My postgreSQL versions are different between local and production (7 on production, 8 on local) so I'm hoping by looking at the SQL generated on the successful migration locally I can work out a SQL statement to run on production to fix things....

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• Rails 3: habtm migration, primary key issue

  - by Brian Wigginton

  I'm trying to setup a migration file for a habtm relationship, however when I run the migration I'm getting the following error: Primary key is not allowed in a has_and_belongs_to_many join table (parts_vehicles). Here is my migration file (20110111035950_create_parts_vehicles.rb): class CreatePartsVehiclesJoinTable < ActiveRecord::Migration def self.up create_table :parts_vehicles, :id => false do |t| t.integer :part_id t.integer :vehicle_id end end def self.down drop_table :parts_vehicles end end The documentation example states to use :id => false to disable a primary key from being generated, but I'm still getting the error.

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• Create ActiveRecord migration then edit in one step?

  - by geosteve

  I find myself doing this a lot: script/generate migration my_new_migration .. then select & copy the generated filename, then paste it into vi to actually write the migration. Is there any way to do this in one step? i.e. when the script/generate migration runs, it creates the file the automatically opens that file in an editor? (I'm working in an SSH terminal window on linux..)

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• server-migration issues : how i test my site before DNS A record transfer

  - by vinayrks

  I am doing a Server migration of virtual server (host 15+ sites ), I did all file transfer & other configuration , Now I want to test my sites before actual A record transfer , I know I have to entry in my /etc/hosts file on local computer .Can you give me what exactly i need to write in my /etc/hosts file?

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• Convirt Tool xen live migration virtualization

  - by Rajat

  have any one use http://convirture.com (convirt) tool to manage RHEL 5.3 XEN server and live migration if yes pls let me know how can done!

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• Problems after using migration assistant

  - by abchase

  I had migrated from a Xenon Mac Pro to a late 2012 Mac mini, using Migration Assistant. Now, the Mac mini won't recognize PHP. I can't even open my user folder, through terminal neither. I was running Homebrew and PHP 5.4. The Mac mini came out of the box with PHP 5.3 what could be the source of the problem. Can someone confirm that it is a version caused problem or point me in the right direction?

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• Fusion CRM Data Integration and Migration from Conemis (D)

  - by Richard Lefebvre

  Conemis Data Integration Tools edited for Oracle Fusion CRM offers easy-to-use and pre-configured tools for data integration, data quality, and migration of data from Oracle CRM on Demand and third-party applications to Oracle Fusion CRM Conemis solution includes: Pressure Fueling of data for Fusion CRM Migration covered from legacy to Fusion CRM Data Quality in migration and integration Intuitive Data Housekeeping for IT and Sales Backups of Fusion CRM environments Conemis's solution benefits include Fusion CRM integrated out-of-the-box, connection to other applications, ready-made data mapping, instant availability without installation, fully configurable, shared use in integration expert groups, one GUI for several environments/pods, reduced costs & risks in migration projects, etc. Conemis AG, a German-based data integration company founded in 2009, offers Software and services solution and expertize for Oracle CRM products's data migration and integration. For more details, please contact Dr. Daniel Rolli ([email protected]) www.conemis.com.

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• Best way to migrate from MySQL to PostgreSQL

  - by user37994

  Hi, I have to migrate a MySQL database to PostgreSQL. I have tried the mysqldump with --compatible = postresql. I have seen that some poeple use ETL like Talend to make the migration but you must describe the migration for all tables... (I have 39 tables...) Any other idea ? Thanks in advance

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• Migration of VM from Hyper-V to Hyper-V R2 - Pass through disks

  - by Andrew Gillen

  I am trying to migrate a VM which is using two pass through disks from a legacy Hyper-V Cluster to a new R2 cluster. The migrated VM cannot use the pass through disks though. The guest OS (2008 R2) doesn't seem to like the disk and eventually tries to format the disk instead of mounting it. The migration process I have been using for all my VMs is to export the VM to a new lun, then add that new lun to the new cluster, importing the vm off it in the hyper-v console, then making it highly available. I assumed I could do the same thing and just add the two pass through disks to the new cluster and then attach them inside Hyper-V. Is there a process I need to follow to migrate pass through disks that does not involve setting up new Luns and robocopying the data over?

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• Migration of egroupware from one Ubuntu server to another

  - by Chris Schmidt

  I am new to server administration and have been attempting to migrate from one Ubuntu server to another for 4 days now. I am having a problem with migration of egroupware settings. Specifically, I need to find where knowledgebase saves the files on the local machine. I have the database set correctly and its using the previous settings. However, articles in knowledgebase are not showing images associated with them. I have tried everything to find the file on the old server that stores data files uploaded to the knowlegebase but I cannot. If there is another way to import these files, or if someone knows where they are saved, I would really appreciate the help. -Chris

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