TAILIEUCHUNG - SQL Server Tacklebox- P34

SQL Server Tacklebox- P34: This book, as with almost all books, started out as an idea. I wanted to accumulate together those scripts and tools that I have built over the years so that DBAs could sort through them and perhaps adapt them for their own circumstances. | 6 Monitoring and notifications data for the monitored server as shown in Figure most other monitoring solutions offer similar query gathering features . Figure Enabling the capture of trace data. The trace data allows you to see what code is associated with the alert or at least to correlate the notification to the query that was running at the time the alert was fired. Figure shows the query that SQL Response collected with the alert which is indeed the query that I ran to trigger the high CPU utilization alert in the first place. 5QL query fragment BEGIN Trsn T_Time DECLARE @SQL_Alphabet varchar 26 SET @SQL_Alphabet ABCDEFCHI JKLHHOPORSTUVTJXT Z DECLARE @rnd_seed int SET @rnd_seed 26 DECLARE @DT datetime SET @DT 06 21 1969 DECLARE counter inc 1 WHILE Qcouncex 10000000 BEGIN Insert Into Important_Data WITH XLOCK ffi Performance snapshot when alert was raised System processes when alert was raised EJ Comments Figure Capturing the query that triggered high CPU. With the query in hand you can begin the arduous task of tracking down the user or process that has caused the issue. And once you find them you will have the further unenviable task of informing them that their query has caused you much pain and suffering. However I have found that as a team everyone is open to suggestions and few I have met in my travels through the data world really take 165 6 Monitoring and notifications offence at your scrutiny of their code. They have a job to do and they want to excel just like you. If you tell them there is a problem they will genuinely listen and try to fix it. As a DBA you have the ability to help and this team work is truly what is required. You may not like being awoken at 2 00AM by an alert for high CPU utilization but it is important to not let that resentment spill over to other team members. Use the knowledge to fix the issue so that it will not happen again. Stopped services and disk space shortage Low disk space and failing SQL Services .

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