Detecting Connection Timeouts

2,943 0
Connection timeouts can be difficult to troubleshoot. It’s sometimes not even apparent that a timeout has occurred. However, the connectivity_ring_buffer_recorded Extended Event can show that this has happened. This is a debug event within Extended Events, so some caution is necessary in its use. Microsoft can change the debug events without warning. You can use […] Read more

Subscriber Data Validation Failed

1,612 0
Uses the data from sysreplication alerts within the msdb database to identify any alerts of value 20574. This indicates a data validation of the subscriber. You will have to look to the error log to understand exactly which subscriber has failed. Only run this on a distribution server. Read more

Finding Job Step Failures

This metric returns a count of the job steps that failed in the latest execution of all jobs on the instance. This should be a calculated measure, where the change is what should alert the DBA. If any step in a job fails in the latest execution, this alert counts those failures and returns a […] Read more

Detecting Connection Timeouts

4,687 0
Connection timeouts can be difficult to troubleshoot. It’s sometimes not even apparent that a timeout has occurred. However, the connectivity_ring_buffer_recorded Extended Event can show that this has happened. This is a debug event within Extended Events, so some caution is necessary in its use. Microsoft can change the debug events without warning. You can use […] Read more

Database Drift – Monitoring Unauthorized Object Changes

5,271 0
This metric identifies when an object has been changed by other than the authorized login. It relies on an Extended Events session to capture the metrics and filters for a specific login. This is a tweak to this custom metric. Here is the necessary Extended Events Session (substitute the appropriate login for the ‘LoginName’ string. […] Read more

Databases at 80% of max file size

2,734 0
This metric tracks the largest file in a database as a percentage of the maximum file size. If there are 3 files, and 2 are at 50% of the max set (max_usage in sys.database_files), and a third is at 60%, the 60% number is returned. Read more

Detect MrbMiner Malware

3,331 0
This metric looks for the presence of the MrbMiner malware by checking for an account in sys.sql_logins. Additional information: https://www.zdnet.com/article/new-mrbminer-malware-has-infected-thousands-of-mssql-databases/ Read more

SQL Agent Jobs Owned By The Wrong Person

One or more SQL Agent jobs exist that are not owned by the database owner. You should fix these jobs so that they’re owned by the appropriate person. If the owning account is removed from Active Directory, the job may fail. Read more