Cloud Monitor:Create a multi-step detection task

Prerequisites

One or more alert contacts and alert contact groups are created. For more information, see Create an alert contact or alert contact group.

Background information

• For more information about activation and billing of the site monitoring feature, see Activate Network Analysis and Monitoring.

• If your site is configured with high-level firewall policy settings or a whitelist, you may need to add the IP addresses of detection points to the whitelist so that the detection points can successfully access your site without being blocked by the firewall. For more information, see How do I configure a whitelist for a detection request if the detection request is mistakenly identified as an attack or a crawler?

• Multi-step detection is suitable for the following scenarios:

  • Monitor business transactions at the API level and set alert rules.

  • Detect and diagnose application availability and performance at different network layers: Build a business test process that combines different network protocols such as DNS, PING, MTR, TCP, and HTTP. Each step serves a purpose, such as domain name resolution, network connectivity, port connectivity, and API availability. This provides more flexibility for network fault diagnosis.

Procedure

1. Log on to the Cloud Monitor console.

2. In the left-side navigation pane, choose Network Analysis and Monitoring > Site Monitoring.

3. On the Monitoring Tasks tab, move the pointer over Create Task and click Multi-step Detection.

4. In the Create Task panel, configure the following parameters.

   1. Basic Information

      Parameter	Description
      Task Name	The name of the site monitoring task. The name must be 4 to 100 characters in length and can contain letters, digits, underscores (_), Chinese characters, hyphens (-), and periods (.).
      Monitoring Frequency	The frequency at which the site monitoring task sends detection requests to your site. For example, if you select 1 Minute, a detection point in a region sends a detection request to your site every minute.
      Specify Effective Period	Turn on or off the Specify Effective Period switch based on your requirements. If you turn on the switch, you can specify a custom time range during which the multi-step detection task is effective.

   2. Define Steps

      Parameter	Description
      Environment Variables	Environment variables can be referenced in parameters of different test steps (using the placeholder {{$.<Variable name>}}). They can also be updated with values parsed from the results of a test step and then referenced in the next test step. For sensitive information such as API keys, you can select Encrypted Storage to mask the data. Note You can add multiple environment variables to store configuration information. You can use your custom environment variables when you add test steps.
      Multi-step Detection	Add Step: In the Add Step panel, set the parameters for the test step. For more information about the parameters, see Monitor your sites from PCs over the Internet. Note When you configure the monitored address, you can reference custom environment variables using the format {{$.<Variable name>}}, for example, {{$.testurl}}.
      	Add Wait Step: You can add multiple wait steps between test steps. Unit: seconds.

   3. Select Detection Points

      1. Set IP Protocol to the type of the IP address used by the site monitoring task. Valid values: IPv4, IPv6, and Automatic.

      2. Select detection points on the Recommend, All, or Custom tab as needed. If the default ones provided by Cloud Monitor do not meet your requirements, perform the following steps:

         1. Click Manage Custom Templates. In the panel that appears, click Create Template.

         2. In the dialog box that appears, set Template Name, select custom detection points, and click OK.

   4. Alert Rule

      Parameter	Description
      Alerts	Recently Continuous: Select the number of consecutive cycles. Valid values: 1, 3, 5, 10, 15, 30, 60, 70, 90, 120, and 180. Availability Rate: Percentage of Available Detection Points: Percentage of available detection points = (Number of times that a domain name or IP address can be accessed properly within a monitoring period/Total number of detection requests) × 100%. Number of Unavailable Detection Points: The number of times that the domain name or IP address of the site cannot be accessed as expected within a monitoring period. Number of Available Detection Points: The number of times that the domain name or IP address of the site can be accessed as expected within a monitoring period. Number of DNS Hijacking Detection Points: The number of detection points that encounter DNS hijacking. This metric is used to check whether DNS responses have been tampered with. Response Time: Average Maximum Value Minimum Metric Value Packet Loss Rate: Ping Packet Loss Rate Comparison operator: The operator that is used to compare the metric value with the alert threshold. Valid values: >= > <= < = != Compared With Yesterday Rise Compared With Yesterday Decline Compared With Last Week Rise Compared With Last Week Decline Compared With Last Period Rise Compared With Last Period Decline Alert level: Configure a custom threshold for each alert level. The following alert levels are available: Critical, Warning, and Info. Note For more information about how to configure alert rules, see the Configure Alert Rules step in the "Monitor your sites from PCs over the Internet" topic.
      Add Alert Rule	You can add multiple alert rules.
      Alert Contact Group	The alert contact groups to which alert notifications are sent. Select at least one alert contact group.

5. Click OK.

What to do next

References

• Manage site monitoring tasks

• Error codes and status codes

• Metrics

• IP address pool of detection points for site monitoring