CompTIA DataSys+ (DS0-001)Database Management and MaintenanceEasy
A database administrator is setting up monitoring for a new production database. They need to track the number of active connections to the database server over time to identify potential connection pooling issues or application misconfigurations. Which of the following metrics would be MOST appropriate to monitor for this purpose?
- ANumber of active database sessions
- BMemory page faults
- CCPU utilization percentage
- DDisk I/O operations per second (IOPS)
Show answer & explanationAnswer & explanation
Correct answer: A. Number of active database sessions
The number of active database sessions directly indicates how many connections are currently established and active on the database server, which is crucial for identifying connection-related issues.
Why the other options are wrong
- B. Memory page faults indicate issues with memory access and virtual memory management, not directly related to database connection counts.
- C. CPU utilization percentage indicates how busy the CPU is, which can be affected by many factors, but doesn't directly measure active connections.
- D. Disk I/O operations per second (IOPS) relate to storage performance, not directly to the number of active connections.
Active Database Sessions
The count of currently established and active connections to a database server, representing concurrent users or application processes interacting with the database.
- High numbers can indicate connection leaks or heavy load.
- Low numbers might suggest application issues or idle resources.
- Monitored to understand database concurrency and resource usage.
Memory trick: Active sessions are the 'pulse' of database usage.