The ‘Queries’ tab of the single instance dashboard lists each event that occurs in the ‘Query Monitor’ and displays query data in multiple ways and get a handle on query performance in the environment. Refer also to the product documentation ‘View your SQL Server sessions information’. This chart displays blocks as they occur. The ‘Sessions > Sessions Graphs’ tab contains three charts including the ‘Blocked Sessions’ chart that lists all ‘Blocked Sessions’, ‘Lead Blockers’, and ‘Total Deadlocks’ for each SQL Server instance. The ‘Sessions’ tab of the single instance dashboard displays key diagnostic statistics for sessions on SQL Server instances and contains the Overview and Session Graphs views. Refer also to the product documentation ‘Metric availability for instances hosted on the cloud’. Of these metrics, in the SQL Diagnostic Manager area of ‘Sessions > Summary’, one of the six metrics that it does not collect for Microsoft SQL Azure is ‘Deadlocks’. However, for monitored SQL Server instances hosted on Microsoft SQL Azure, SQL Diagnostic Manager does not gather 92 metrics. Of these metrics, in the SQL Diagnostic Manager area of ‘Sessions -> Summary’, one of the nine metrics that it collects for Amazon RDS is ‘Lock Statistics -> Deadlocks’. For monitored SQL Server instances hosted on Amazon RDS, SQL Diagnostic Manager collects 101 metrics from Amazon RDS. SQL Diagnostic Manager displays a wide range of information collected for monitored SQL Server instances hosted on Amazon RDS and Microsoft SQL Azure. Use the ‘Select Cloud Providers for the Added Servers’ window to choose cloud providers for monitored SQL Server instances that are hosted on the cloud. SQL Diagnostic Manager recognizes when any of the added SQL Server instances are hosted on the cloud. When adding several SQL Server instances and configuring the same alert thresholds on each SQL Server instance, consider setting up alert templates before adding SQL Server instances. The wizard configures all common options to use for monitoring SQL Server collection settings and alerts, and apply alert templates. The ‘Add Servers’ wizard adds the SQL Server instances to monitor. Access Deadlock Metrics for Managed Cloud InstancesĪfter initially installing SQL Diagnostic Manager, add your SQL Server instances. Refer also to the product documentation ‘Server Configuration Properties’. For more information about this setting, refer to the section ‘Set activity monitor options’. Deadlock monitoring depends on enabling the monitoring of non-query activities in the ‘Activity Monitor’ window.

‘Deadlock Monitoring’ that displays the current state of deadlock monitoring and that raises alerts for deadlocked sessions on monitored SQL Server instances.

The monitoring of non-query activities captures ‘autogrow’ events, deadlocks, and blocks.

‘Activity Monitor Enabled’ that displays whether monitoring of non-query activities is enabled.

The ‘Server Configuration Properties’ view contains 38 properties including: Some cells allow making changes on this view while other views are managed in other areas in SQL Diagnostic Manager that are accessible by double-selecting the cell to change. This information is updated each time the ‘Collection Service’ of SQL Diagnostic Manager runs. When selecting the ‘Server Configuration Properties’ view, SQL Diagnostic Manager displays a grid containing each of the settings for all monitored SQL Server instances. The ‘Server Configuration Properties’ view provides the current configuration settings for each of the monitored SQL Server instances. Monitor Deadlocks by Setting Server Configuration Properties

Also, access deadlock metrics for managed cloud instances, display deadlocks in the mobile console, and set activity monitor options for deadlocks. In particular, view deadlocks for session and query performance, analyze locked and blocked sessions with deadlocks, and detect deadlocks with prescriptive analysis. Monitor, alert, diagnose, and report on deadlocks with SQL Diagnostic Manager for SQL Server. When deadlocks are a persistent problem, changes in the design of applications and databases may be needed. Addressing deadlocks requires tuning of applications, databases, and systems. The database management system then aborts and rolls back one of the two processes so that the other process can continue. Without accessing these shared resources, the processes cannot proceed. That is, one process holds a lock that another process requests while the second process holds a lock that the first process requests. Deadlocks occur when concurrent processes compete for locks on shared resources.

Moreover, the locking process is often complicated. However, locking impairs the performance of databases.

Locking is required for concurrent operations of relational databases to prevent data inconsistency and loss.

Sql deadlock report