Alerts

This article is relevant to entity models that utilize the deprecated Visual Studio integration of Telerik Data Access. The current documentation of the Data Access framework is available here.

An alert indicates that an issues has occurred somewhere in you application. For example, if the execution time of a query is more than 25 seconds, an alert might be triggered to indicate that this issue is occuring in your application. Alert have the following severity levels:

• Low
• Medium - indicates a potential problem or a current problem that is not serious. For example, a Medium alert will be generated if the execution time of a query is more than 15 seconds. It is recommended to investigate and solve a medium alert to prevent the underlying issue from becoming critical.
• High - usually indicates a (serious) problem, such as a long running query that may exceed the connection timeout.

The Telerik Data Access Profiler can detect the following types of problems:

• Long Running Query - a long running query.
• Select N+1 Problem - a data access anti-pattern where the database is accessed in a suboptimal way. Detecting Select N+1 problem usually means that the data fetch strategy of the application can be optimized.
• Too Many Records Fetched - indicates that a query fetched more records than usual. Such queries might take long time to execute, decreasing the performance of your application.
• Runtime Exception - indicates that an exception has occurred in your application.
• Client-side LINQ Query - queries that are not completely executed on the database server, i.e. they are not completely translated to SQL, but part of them is executed on the client-side using Linq to Objects.

Here you can find information about:

• Severity - the severity level of the problem.
• Alert - the type of the alert.
• Timestamp - shows the time when the problem is detected.
• Value - displays a value related to the problem. For example, this might be the duration of a long running query.
  
• Context Id - displays the id of the OpenAccessContext.
• Context Name - displays the name of the context class.

Context Menu Operations

The context menu for the selected row in the Alerts grid exposes the following actions:

• Go To SQL Statement - navigates to the related SQL query in the SQL Events.
• Go To LINQ Statement - navigates to the corresponding LINQ record in the LINQ/API Events.
• Edit Alert Settings - allows you to configure the conditions for the different alert levels. For more information, see Alert Rules.