WSO2 APIM currently supports the following alert types.
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| Reason for triggering | If there is a sudden increase in the response time of a specific API resource. |
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| Indication | Slow WSO2 API Manager runtime, or slow backend. |
| Description | If the response time of a particular API resource (e.g., GET /API1/1.0/user/1) of a tenant, lies outside the Xth percentile value, an alert is sent. Default percentile value is 95%. Here, it is assumed that the response time of an API resource follows a normal distribution. Percentile value gets calculated daily by default. |
Abnormal backend time
| Reason for triggering | If there is a sudden increase in the backend time corresponding to a particular API resource. |
|---|---|
| Indication | Slow backend |
| Description | An alert is sent if the backend time of a particular API resource (e.g., GET /calc/1.0/numbers) of a tenant lies outside the Xth percentile value. Default percentile value is 95%. Here, it is assumed that the corresponding backend time of an API resource follows a normal distribution. The percentile value gets calculated daily by default. |
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| Reason for Triggering | The response status code is greater than or equal to 500, but less than 600. This should occur continuously for a specified number of times ( 5 by default) in order to trigger an alert. |
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| Indication | A server side error has occurred. |
| Info |
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Refer /wiki/spaces/AM2xx/pages/21364748 Viewing Availability Of APIs for more information on API status changing over Availability of APIs. |