What is read-only routing?

What is read-only routing?

Read-only routing refers to the ability of SQL Server to route qualifying read-only connection requests to an available Always On readable secondary replica (that is, a replica that is configured to allow read-only workloads when running under the secondary role).

How do I make an application intent read-only?

Connect to the replica(s) with Application Intent=Read-only To do this from SSMS, in the connection windows press the “Options >>” button before connecting. Then go to “Additional Connection Parameters” tab and enter ApplicationIntent=ReadOnly in the text box.

How do I change the read/write mode in a database?

Using SQL Server Management Studio

1. Right-click database you need to mark as read-write.
2. Select “Properties”
3. In the “Database Properties” window select “Options” tab.
4. Scroll down and find “State” tab, go to “Database Read-Only” statement and select “False”

What is readable secondary in Alwayson?

Readable secondary: No – It does not allow any user connections for the secondary replica. It is the default configuration. We can change the Readable secondary to the following values. Read-intent only: In this mode, the secondary database allows the read-only connections. Users with the appropriate access can read …

What is an example of read only routing?

The following example connection string for the .NET Framework Data Provider 4.0.2 for SQL Server illustrates the parts of a connection string that are required and recommended to work for read-only routing.

How to configure read only routing in SQL Server?

In the below screenshot, the AG group name is AGTEST01 and the AG listener name is AGLIS01 To configure read-only routing we have to configure the replicas to be read intent only to allow read only connections. Right click on the Availability Group and select properties.

When to set readable secondary as read-intent-only?

The advantage of setting the readable secondary as Read-Intent Only is to allow the secondary server to serve the read-only workload, though only if the connection string of the application contains Application Intent=Readonly parameter. In my scenario, we have three replicas: DB1, DB2 and DB3 in a Windows Failover Cluster.

How to force Internet connection to desired interface?

The interface that has 0.0.0.0 assigned to it will be the one used for internet access. If there are more than one with 0.0.0.0 then the one with the lowest metric will be used. One way to force internet traffic to go through a certain interface is to add a route with a low metric for 0.0.0.0 to this interface. Run “route print”.