For information about creating snapshots manually, see. Dynatrace categorizes all activities running on your Oracle instances, providing you with full insight into how your databases are really used. Other workloads will not be shown and will appear as blank space in the graphs. This view contains statistics about memory utilization, page scan rates, and swap utilization gathered over the last hour. Figure 4-3 Active Sessions Working page The Active Sessions Working page shows a 1-hour time line. After you analyze the information, you can choose to end the session by clicking Kill Session, or return to the Performance page. Time to Complete Approximately 30 minutes Background This tutorial shows you how to perform some of the monitoring operations using Enterprise Manager Database Express.
Oracle provides several views that display wait event statistics. In the Workload Profile section, click the Statistic drop-down and select Parse Calls to see graphically how parse calls behaved during the time window. Deadlocks prevent some transactions from continuing to work. The current value is displayed below the chart. For proactive monitoring tools, there are several choices. For information about setting metric thresholds, see. You can select Per Transaction to show the throughput rate per transaction.
The Session Details page appears. Monitoring Top Objects The Top Objects table displays the top database objects waiting for the corresponding wait event during the selected time period. Click the module with the largest area represented in the graph. Purpose In this tutorial, you monitor your database using Oracle Enterprise Manager Database Express. Building your own Oracle monitoring infrastructure In the classic build vs. How much data is required for a statistically significant sample size? Deadlocks can affect the performance of your database, so Oracle provides some scripts and views that enable you to monitor locks.
In the example in shown in , the number of transactions and physical reads per second spiked at around 10:45 a. Figure 4-20 Performance Summary The Performance Summary view is shown by default. This page shows the top sessions for the selected activity. The Memory Details view of the Performance subpage appears. The Top Actions table appears. If you find an error or have a suggestion for improving our content, we would appreciate your feedback. The Disk Details view appears.
DataSunrise Database Performance Monitoring Tools are dedicated to removing barriers that hinder normal Oracle operation. Services represent groups of applications with common attributes, service-level thresholds, and priorities. The Active Sessions Working page appears. Unzip this file to a working directory. The charts are now displayed according to your customization settings.
In this example, an alert is not generated because a threshold is not defined. Monitoring Top Files The Top Files table displays the average wait time for specific files during the selected time period. Dynatrace monitors and analyzes the activity of your Oracle Database services across all platforms, providing visibility down to individual database statements. The Active Sessions Working page appears. All legitimate Oracle experts publish their. Oracle developers can see the impact of code in production, and operations can see the impact of any changes.
If a single service is using the majority of the wait time, then you should investigate it. The current value of the memory page scan rate is displayed below the chart. Because identifying individual non-performing database statements can be time-consuming, Dynatrace automatically identifies expensive database statements e. The current value is displayed below the chart. Oracle developers can see the impact of code in production, and operations can see the impact of any changes. The View page for the object appears.
This value is a primary indicator of the kinds of faults that may be causing systemwide delays. You see redo activity during, before, and after the time window. Figure 4-5 Monitoring Top Sessions A session lasts from the time the user connects to the database until the time the user disconnects or exits the database application. The Longest Service Time page appears. What if you could proactively manage the health of your Oracle infrastructure and quickly diagnose and resolve performance problems, while optimizing your Oracle workload to prevent future issues? These statistics show if the disk is performing optimally or if the disk is being overworked.
The Memory Utilization page appears. Now click the Activity tab again. Rapidly resolve database issues — before they impact performance and users. In this example, memory utilization is near, but does not exceed, the warning threshold value 99 percent , so an alert is not generated. On Microsoft Windows, this value represents the rate at which pages are read from or written to disk to resolve hard page faults. You can view real-time data showing the session load for all wait classes associated with the service. Details for each wait class are shown in 5-minute intervals under Detail for Selected 5 Minute Interval.
Monitoring Services The Services charts show services waiting for the corresponding wait event during the time period shown. If a single action is using the majority of the wait time, then you should investigate it. Only active services are shown. It captures, measures, and analyzes performance metrics from all critical system components and helps you detect and correct the root causes of problems before end users are affected. This page contains memory utilization statistics and related alerts generated over the last 24 hours.