Azure data studio redshift1/13/2024 ![]() ![]() HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ Tcpip \ Parameters \ KeepAliveInterval HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ Tcpip \ Parameters \ KeepAliveTime To address the first point and avoid dropping idle connections by a network component, set the following registry settings or their non-Windows equivalents on the operating system where the driver is loaded: Registry Setting This method isn't recommended and should only be used if there are no other possible options. Keep connections active via lightweight activity. Use the Redirect connection policy to configure your Azure SQL data source. To address the second point and avoid the Gateway terminating idle connections, you can: In this scenario, the Gateway will determine that the TDS connection is idle at 30 minutes and terminates the connection. Idle by the Azure SQL Gateway, where TCP keepalive messages might be occurring (which makes the connection not idle from a TCP perspective), but not had an active query in 30 minutes. Idle at the TCP layer, where connections can be dropped by any number of network devices. There are two types of idle connections, in this context: When you connect to an Azure SQL Database, idle connections may be terminated by a network component (such as a firewall) after a period of inactivity. For more information on how to set the loginTimeout, see Setting the connection properties. If the serverless instance has been idle, it can take some time to wake up on an initial connection. If you're connecting to a serverless instance, it's recommended to use an even longer loginTimeout of 60 seconds or more. When connecting to Azure SQL databases, the recommended default loginTimeout is 30 seconds. Refer to the discussion of permissions in sys.databases (Transact-SQL) to understand SQLServerDatabaseMetaData.getCatalogs behavior on an Azure SQL Database. SQLServerDatabaseMetaData.getCatalogs use the sys.databases view to get the catalogs. To connect to an Azure SQL Database, you should connect to the master database to call SQLServerDatabaseMetaData.getCatalogs.Īzure SQL Database doesn't support returning the entire set of catalogs from a user database. For more information to connect to an Azure SQL Database, see:Ĭonnect using Azure Active Directory Authentication ![]() This article discusses issues when you use the Microsoft JDBC Driver for SQL Server to connect to an Azure SQL Database. ![]()
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