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In questo articolo contiene un elenco di problemi noti e problemi comuni relativi all'esecuzione di codice Python o R in SQL Server. Prima di iniziare, si consiglia di raccogliere alcune informazioni relative al sistema. Before you get started, we recommend that you collect some information about your system.

Per altre informazioni, vedere la raccolta dei dati per la risoluzione dei problemi. To learn how, see Data collection for troubleshooting. Inoltre, esaminare l'elenco dei problemi comuni che sono specifiche di configurazione o la configurazione iniziale: Also, review a list of common issues that are specific to initial setup or configuration: Setup and upgrade FAQ.

Il servizio Launchpad attendibile di SQL Server gestisce l'esecuzione di script esterni e la comunicazione con R, Sistema binario numeri negativi o altri runtime esterni. Multiple issues can prevent Launchpad from starting, including configuration problems or changes, or missing network protocols. Come parte del processo di risoluzione dei problemi, iniziare da sistema binario numeri negativi alle domande seguenti: As part of the troubleshooting process, begin by answering the following questions: Aprire la Services pannello Services.

Open the Services panel Services. Prendere nota dell'account del servizio in esecuzione nella finestra di avvio. Make a note of the service account that Launchpad is running under. Each instance where R or Python is enabled should have its own instance of the Launchpad service. Se il servizio viene arrestato, riavviarlo. If the service is stopped, restart it. Al riavvio, se sono presenti eventuali problemi con la configurazione, un messaggio viene pubblicato nel registro eventi di sistema e il servizio viene arrestato nuovamente.

On restarting, if there are any issues with configuration, a message is published in the system event log, and the service is stopped again. Controllare il registro eventi di sistema per informazioni dettagliate sui motivi per cui il servizio arrestato. Check the system event log for details about why the service stopped.

Esaminare il contenuto di RSetup. Review the contents of RSetup. Ad esempio, il messaggio chiusura con codice 0 indica un errore del servizio di avvio. For example, the message Exiting with code 0 indicates failure of the service to start.

Per cercare altri errori, esaminare il contenuto di rlauncher. To look for other errors, review the contents of rlauncher. La parte finale potrebbe variare, a seconda del nome dell'istanza Sistema binario numeri negativi. The final part might vary, depending on your SQL instance name.

Sistema binario numeri negativi servizio Launchpad Launchpad. The Launchpad service Launchpad. Per sistema binario numeri negativi R e Python e sistema binario numeri negativi con l'istanza del database, tuttavia, l'account del servizio Launchpad richiede diritti utente seguenti: However, to start R and Python and communicate with the database instance, the Launchpad service account requires the following user rights: Per informazioni su questi diritti, vedere la sezione "diritti e privilegi di Windows" nella configurare Windows account del servizio e autorizzazioni.

For information about these user rights, see the "Windows privileges and rights" section in Configure Windows service accounts and permissions. Uno dei diversi problemi che possono impedire l'avvio finestra di avvio. Any of several issues can prevent Launchpad from starting. Il servizio Launchpad potrebbe avviare e sistema binario numeri negativi o potrebbe smettere di arresto anomalo del sistema o il servizio con un timeout di connessione.

The Launchpad service might start and then stop or crash, or the service might stop with a connection timeout. In these cases, the system has usually been changed or configured such that Launchpad cannot run. For compatibility with R, SQL Server R Services In-Database required the drive where the feature is installed to support the creation of short file names by using 8dot3 notation. Un nome di 8.

If the volume where you sistema binario numeri negativi installing R does not support short file names, the processes that sistema binario numeri negativi R from SQL Server might not be able to locate the correct executable, and Launchpad will not start.

As a workaround, you can enable the 8dot3 notation on the volume where SQL Server is installed and where R Services is installed. You must then provide the short name for the working directory in the R Sistema binario numeri negativi configuration file.

To sistema binario numeri negativi 8dot3 notation, run the fsutil utility with the 8dot3name argument as described here: Dopo aver abilitata la notazione 8dot3, aprire il file RLauncher. After the 8dot3 notation is enabled, open the RLauncher. Per informazioni su come individuare questo file, vedere raccolta dei dati per la risoluzione dei problemi di Machine Learning. For information about how to find this file, see Data collection for Machine Learning troubleshooting.

Alternatively, you can specify a different working directory and choose an existing path that's already compatible with the 8dot3 notation. This restriction has been removed in later releases. Se si riscontra questo problema, installare uno dei valori seguenti: If you experience this issue, install one of the following: If this user group is enabled, it is also used to execute Python scripts.

However, in organizations where more restrictive security policies are enforced, the rights that are required by this group might have been manually removed, or they might be automatically revoked by policy. Per altre informazioni, vedere configurare Windows account del servizio e autorizzazioni.

For more information, see Configure Windows service accounts and permissions. If you install the database engine with other features, patch the server, and then later add the Machine Learning feature by using the original media, the wrong version of the Machine Learning components might be installed. Quando Launchpad rileva una mancata corrispondenza di versione, viene chiuso e viene creato un file di dump. When Launchpad detects a version mismatch, it shuts down and creates a dump file.

To avoid this problem, be sure to install any new features at the same patch level as the server instance. Il modo non corretto per eseguire l'aggiornamento: The wrong way to upgrade: Il modo corretto per eseguire l'aggiornamento: The correct way to upgrade: Even if Launchpad is configured correctly, it returns an error if the user does not have permission to run R or Python scripts.

If you installed SQL Server as a database administrator or you are a database owner, you are automatically granted this sistema binario numeri negativi. However, other users usually have more limited permissions. Sistema binario numeri negativi si prova a eseguire uno script R, ricevono un errore di avvio. If they try to run an R script, they get a Launchpad error. This section lists the most common error messages that Launchpad returns.

If the Windows group for R users also used for Python cannot log on to sistema binario numeri negativi instance that is running R Services, you might see the following errors: Errori generati quando si tenta di eseguire gli script R: Errors generated when you try to run R scripts: Verificare la configurazione del runtime di 'R'.

Unable to launch runtime for 'R' script. Please check the configuration of the 'R' runtime. An external script error occurred. Unable to launch the runtime. Failed to initialize the launcher RLauncher. No launcher dlls were registered! Per informazioni su come concedere al gruppo utente le autorizzazioni sistema binario numeri negativi, vedere installare SQL Server R Services. Questa limitazione non si applica se si usano account di accesso SQL per eseguire script R da una workstation remota.

This limitation does not apply if you use SQL logins to run R scripts from a remote workstation. Se si assegna un account diverso alla finestra di avvio o di destra viene rimosso da un criterio nel computer SQL Server, l'account non disponga delle autorizzazioni necessarie e si potrebbe essere visualizzato questo errore: If you assign a different account to Launchpad, or the right is removed by a policy on the SQL Server machine, the account might not have the necessary permissions, and you might see this error: L'utente non ha ottenuto il tipo di accesso richiesto a questo computer.

Per concedere le autorizzazioni necessarie per il nuovo account del servizio, utilizzare l'applicazione di criteri di sicurezza locali e aggiornare le autorizzazioni per l'account da includere le autorizzazioni sistema binario numeri negativi To grant the necessary permissions to the new service account, use the Local Security Policy application, and update the permissions on the account to sistema binario numeri negativi the following permissions: If you have installed and then enabled machine learning, but you get this error when you try to run an R or Python script, the Launchpad service for the instance might have stopped running.

Selezionare il servizio scheda e quindi verificare che il servizio sia in esecuzione. Select the Service tab, and then verify that the service is running.

If it is not running, change the Start Mode to Automaticand then select Apply. Il riavvio del servizio in genere corregge il problema in modo che sia possibile eseguire gli script di machine learning.

Restarting the service usually fixes the problem so that machine learning scripts can run. If the restart does not fix the issue, note the path and the arguments in the Binary Path property, and do the following: