Configuring an Alarm Rule
After creating a function and trigger, you can monitor the invocation and running statuses of the function in real time.
Viewing Function Metrics
FunctionGraph differentiates the metrics of a function by version, allowing you to query the metrics of a specific function version.
Procedure
Create an alarm rule for a function to report metrics to Cloud Eye so that you can view monitoring graphs and alarm messages on the Cloud Eye console.
- Log in to the FunctionGraph console. In the navigation pane, choose Functions > Function List.
- Click the name of the desired function.
- On the displayed function details page, select a function version or alias, and choose Monitoring > Metrics.
- Click Create Alarm Rule.
- Set alarm parameters and click Next as shown in Figure 1.
- Enter a rule name and click OK.
After a function is deleted, the alarm rules created for it will not be updated in real time on the Cloud Eye console and may continue to be displayed there for a maximum of seven days.
Function Metrics
Table 1 lists the function metrics that can be monitored by Cloud Eye.
Metric | Display Name | Description | Unit | Upper Limit | Lower Limit | Recommended Threshold | Value Type | Dimension |
|---|---|---|---|---|---|---|---|---|
count | Invocations | Number of function invocations | Count | - | 0 | - | int | package-functionname |
failcount | Errors | Number of invocation errors | Count | - | 0 | - | int | package-functionname |
rejectcount | Throttles | Number of function throttles | Count | - | 0 | - | int | package-functionname |
duration | Average Duration | Average duration of function invocation | ms | - | 0 | - | float | package-functionname |
maxDuration | Maximum Duration | Maximum duration of function invocation | ms | - | 0 | - | float | package-functionname |
minDuration | Minimum Duration | Minimum duration of function invocation | ms | - | 0 | - | float | package-functionname |
concurrency | Concurrency | The number of requests that can be processed concurrently | Count | - | 0 | - | int | package-functionname |
payPerUseInstance | Elastic Instances | Number of instances actually used by a function after reserved instances are excluded | Count | - | 0 | - | int | package-functionname |
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