Static Alert directly sets a static performance value and a static Availability value, sets the conditions for Alert triggering, and triggers when the trigger is met or one of the conditions is met.
Since the content or other content of some websites changes at any time, using static Alert will not be flexible enough. The biggest difference of dynamic Alert is that it can change dynamically based on an Alert. The System management operator can specify a calculation period, and Alert can be flexibly changed during this calculation period.
Includes the following items:Performance indicator: This is optional. When this option is checked, performance alarm can be performed; when this option is not selected, performance alarm cannot be performed. When only Availability alert is required, this option cannot be selected.
Performance indicator items: When selecting different types of monitoring tasks, the performance indicator items available for selection are different.
Static threshold and dynamic threshold: When Static Threshold is selected, the system uses the entered threshold to make a judgment; when Dynamic Threshold is selected, the system needs to calculate a threshold (the value is the average value of the performance value of the selected task calculated according to the specified calculation period), and then add the entered threshold to this value to become the final threshold. Two upward calculation methods are supported, including (base value +
float value) or (base value + float percentage).
Normal Alert and Critical Alert thresholds: The Alert threshold is not allowed to be empty. The Critical Alert threshold needs to be greater than or equal to the normal Alert threshold. When both are met, only Critical Alert is triggered.
Calculation period: When the Dynamic Threshold option is selected, this option is optional and is used for the period when the system calculates the dynamic threshold. This value will be calculated on a rolling basis during the Alert validity period; there are four options; last day, calculate the average performance of this performance indicator on the previous day; last week, calculate the average performance of this performance indicator on the day of last week; last week, calculate the average performance of this performance indicator in the previous week; last month, calculate the average performance of this performance indicator in the previous month.
Availability threshold: optional, when this option is selected, the Alert can perform Availability alert. Release the floating percentage. The Availability Critical Alert threshold needs to be less than or equal to the normal Alert threshold, and only Critical Alert is triggered when it is met.
Exclude some Error: Supports excluding some Error types when calculating Availability. This option is not supported when grouping by Element domain name.
Trigger condition: This item needs to be selected when both performance options Alert and Availability Alert are selected. It includes two options, Alert is triggered when the performance index and Availability meet one of them, and Alert is triggered when the performance index and Availability are met at the same time.
Statistical method: the method of calculating sampled data. Including average value, quantile value and single sample. The quantile value supports customization.
Sampling interval: The time range when calculating the sampling data. Pay attention to the difference from the system processing Alert cycle. The system processes Alert once every 5 minutes. The time range of data to be calculated for each Alert depends on the setting of this item. The settings affect the accuracy and sensitivity of Alert.Fixed interval: For example, the system performs an Alert calculation at 9 o'clock. If this item is set to 1 hour, the monitoring data between 8:00-9:00 will be used when calculating this Alert.
Dynamic interval: current task monitoring frequency.
Alert duration: Set the duration of Alert. Alert will not be triggered until this duration is reached. In order to increase the accuracy of Alert, some of the sensitivity of Alert will be sacrificed.
Trigger minimum sample: This value is set to prevent statistical inaccuracies caused by too few sampled data points; when calculating Alert, if the number of data points sampled each time is less than this setting, it will not be processed. Assuming it is 5, then Alert will not be calculated if the data points collected during the sampling period are less than 5, and Alert will be calculated only if it is higher than 5. The settings affect the accuracy and sensitivity of Alert. If Group by city is selected in the grouping option, the judgment will be based on the number of sampled data points after grouping for each city. Therefore, after selecting grouping by city, this item should be considered as small as possible.
Trigger minimum Error sample: This settings only takes effect when Availability triggers Alert.
Maximum number of Alert times: When alerts occur continuously, the maximum number of times that Alert notifications need to be sent. The system will calculate the cumulative number of sending times for each consecutive Alert occurrence. When it is equal to the value set here, Alert will no longer be sent. When the alert occurs again after normal operation, it will restart counting the number of sending times and send Alert.
Alert sampling grouping: Grouping refers to classifying the sampling data in a certain way, and then counting the sampling data separately; if None is selected, no grouping will be performed; if By City is selected, the sampling data will be grouped by city. During calculation, the sampling data will be divided into several Dataset according to the selected city for processing respectively, and so on for other options.
Operator filtering: Set the operators that need to be filtered for Alert sampling. Only the monitoring data of Probe from the selected operator will participate in the Alert calculation.
City filtering: Set the cities to be filtered for Alert sampling. Only monitoring data from Probe from the selected city will participate in the Alert calculation.
Alert Language: Select the language used for the Alert message when sending Alert. Supports Chinese and English.
In the Operation column, click View to view the details of rule settings.
In the Operation column, click Copy to create a rule that is the same as the original Alert rule. The user can modifythe settings item to form a new performance Alert rule, which can improve the efficiency of the Alert rule settings.
In the Operation column, click Edit to modify the Alert rule.
In the Operation column, click Delete to delete the current Alert rule.
In the Action column, click Disable or Enable to disable or enable the current Alert rule.
After checking multiple Alert rules, click Enable in the upper left corner of the page to enable Alert rules in batches; click Disable to disable Alert rules in batches; click Delete to delete Alert rules in batches.
Click the
icon after the Performance Indicator Threshold column and the Availability Threshold column to adjust the order of the performance Alert rules. The performance indicator threshold is the threshold of the performance indicator Critical Alert, and the Availability threshold is the threshold of Availability Critical Alert. Batch operations: Alert supports batch operations "Batch modification", "Batch enable", "Batch deactivate" and "Batch delete"
Support batch modification of Alert policies of the same type
In the editing state, you need to check the check box, edit the data and Save to take effect on the batch editing policy.
Performance Alert and Error Alert support batch modification. (Smart Alert is temporarily not supported)
