Spotlight alarms indicate when the MySQL database exceeds acceptable performance thresholds.
|The Buffer Pool Hit Rate alarm fires when the proportion of table data that can be found in the InnoDB buffer pool drops below a specified threshold.
|The CPU Busy alarm occurs when the total CPU utilization of the system exceeds a threshold. The CPU may encounter a large number of requests, or you may have un-tuned SQL, which unnecessarily uses excessive amounts of CPU.
|The Inefficient Sort alarm fires when the number of temporary files created for sorts is high in comparison to the number of sorts performed.
|The Low Free Physical RAM alarm occurs when the server’s available RAM is low.
|The Query Cache Hit Rate alarm fires when the proportion of SQL queries that can be found in the MySQL query cache drops below a specified threshold.
Once a problem is isolated you can display a drilldown page with charts and tables that provide a detailed breakdown of the underlying statistics.
|Click to open
|Top Sessions Page
The pages in the Top Sessions drilldown display information about the users connected to the MySQL database.
|Summary Page | Mutex Page | Sorts Page | Query Cache Page | Configuration Page | Statistics Page | InnoDB Status Page | Error Log Page | General Log Page | Slow Query Log Page
|The pages in the Activity drilldown display details of the activity on the MySQL database.
|OS Performance Page | OS Processes Page
|The pages in the Operating System drilldown display information related to the performance of, and processes on, the operating system where the MySQL server is running.
Note: The Alarm Log drilldown is common to all Spotlight applications. The alarms are specific to the current Spotlight connection. Spotlight on MySQL Alarms
This section identifies general problems that you may encounter when using Spotlight on Windows, and details how to address those problems. If you do not find a solution in this section then check the Release Notes.
Issues Monitoring a Windows Machine