Summary statistics for data rates of inputs, outputs, and GeoEvent Services can be monitored in real-time from the main page of GeoEvent Manager to quickly evaluate the active status and identify potential issues.
Refer to the Monitor page when troubleshooting a data streaming issue. The count and rate statistics indicate whether the input is receiving and handling events from the source, whether the GeoEvent Service is processing events, and whether the output is sending events to the appropriate output.
Note:
The count for each input and output only shows the number of event records handled by a connector, whereas the GeoEvent Service displays the number of event records received (In) and the number sent (Out). A GeoEvent Service may contain multiple inputs and outputs, which is why the number of event records in or out of a GeoEvent Service may differ from the count for a particular input or output.
Set the refresh interval
The Monitor page in GeoEvent Manager allows you to set a refresh interval to manage the system resources GeoEvent Server is using on the machine. By default, GeoEvent Server updates the event data count and rate statistics for configured inputs, outputs, and GeoEvent Services every second. With a slower refresh interval, GeoEvent Server updates the statistics less frequently, resulting in less system resource usage.
Set the rate thresholds
Rate thresholds are an important feature for monitoring GeoEvent Server. Minimum and maximum rate thresholds can be set for the flow of event records through specific inputs, outputs, and GeoEvent Services. These thresholds are user-defined and intended to reflect the expected behavior of each input, output, or GeoEvent Service under normal operating conditions. Setting appropriate minimum and maximum expected rates allows you to quickly view whether a particular component is behaving as expected. If data rates are in the expected bounds, the rate is shown in green. If data rates are outside the expected bounds, the rate is shown in red. This gives you immediate visual feedback when the system is behaving unexpectedly.
Max rate and time since last
The Monitor page includes statistics for the maximum observed rate and the time since the last event record was handled by each input, output, and service. These statistics help administrators identify unusual spikes or absences of streaming data.
Rate (over the last five minutes)
The Monitor page includes a rate statistic for the average number of events handled by each component over the last five minutes. This statistic is useful for data streams that have been running for a period of time, since the average rate for an input that has just started may be artificially low.
To configure the rate threshold values for the number of events expected per second for any input, output, or service, click Edit to the right of the rate statistic. If the rate falls below a specified minimum or exceeds a specified maximum, the color of the statistic changes to indicate the rate is outside an expected range. Setting event data rate thresholds allows you to quickly see whether an input, output, or service is handling the expected number of event records.
Note:
The sampling rate is fixed at five minutes (300 seconds) and cannot be edited. The rate is reported as an average number of events received, sent, or handled per second.
Average rate (over last five minutes)
By default, the statistics on the number of events received, sent, or handled by an input, output, or service are not reset and continue to grow. The statistics can be reset, which clears all metrics for inputs, outputs, and services (count, average rate, max rate, and time since last). To reset the statistics, click the Reset Statistics button at the top of the Monitor page.
Monitor GeoEvent Services
Individual GeoEvent Services, which themselves may contain multiple inputs and outputs, can be monitored as a single entity. Each GeoEvent Service has an inbound data rate and an outbound data rate, which are reported in average event records per second over a time period. For each data rate (in and out) from each GeoEvent Service, minimum and maximum rate thresholds can be set as described in the Monitor inputs and outputs section below. Other statistics are also shown for each GeoEvent Service (in the inbound and outbound directions), including the total event data count, the maximum rate observed, and the time since the last event record was observed. Click the View Activity Graph button for a particular GeoEvent Service to open a new window that displays an activity graph, illustrating the rate of event records per second over a period of time for each component in a GeoEvent Service. To reset statistics, refer to the Reset statistics section below.
Monitor inputs and outputs
Statistics for individual inputs and outputs can be monitored. Data rates are reported in average event records per second over a time period. For each input and output, minimum and maximum rate thresholds can be set as described in the Access input, output, and GeoEvent Service parameters section below. Other statistics are also shown for each input and output, including the total count, the maximum rate observed, and the time since the last event record was observed. Click the View Activity Graph button for a particular input or output to open a new window that displays an activity graph illustrating the rate of event records per second over a period of time for an input or output. To reset statistics, refer to the Reset statistics section.
Reset statistics
By default, statistics collected by GeoEvent Server are never reset. Statistics such as total event record counts continue to grow indefinitely. You can reset the statistics captured by GeoEvent Server to collect statistics for a well-known time period under a specific set of conditions. A Reset Statistics button is provided for this purpose. Resetting the statistics resets all active statistics and GeoEvent Server begins capturing new statistics.
Start and stop inputs, outputs, and GeoEvent Services
From the Monitor page, you can start, stop, and restart individual components by clicking the Start, Stop, and Restart buttons for any of the listed inputs, outputs, or GeoEvent Services. You can click the Start All and Stop All buttons on the Monitor page to start and stop all inputs, outputs, or GeoEvent Services available.
Access input, output, and GeoEvent Service parameters
To access the inputs, outputs, and GeoEvent Services parameters, open the Monitor page in GeoEvent Manager and click items in the list. The properties dialog box appears, allowing you to edit and save changes. You can also choose to edit properties of an input, output, filter, or processor from the service designer when editing a GeoEvent Service.