The real-time diagnosis feature is suitable for scenarios that need close monitoring of application performance and location of the cause of problems within a short time. This topic describes how to use the real-time diagnosis feature.

Background information

When you need to closely monitor the application performance for a short period of time, such as when releasing an application or performing stress tests on the application, you can use the real-time diagnosis feature. After real-time diagnosis is enabled, this feature continuously monitors the target application for five minutes and reports all the data of the traces during this period. Next, you can use the method stack waterfall chart and thread profiling to identify the causes of the exception based on the trace that shows performance problems.

Portal

Access the Real-time Diagnosis page as follows:

  1. Log on to the EDAS console.
  2. In the left-side navigation pane, choose Resources > Clusters. On the Cluster Details page, click the application name in Applications.
    You can also choose Application Management > Applications from the left-side navigation pane, and then click the name of the Container Service Kubernetes application on the Applications page.
  3. On the Application Overview page, choose Application Diagnosis > Real-time.

Enable and disable real-time diagnostics

The first time you access the Real-time Diagnosis page, real-time diagnostics is automatically enabled. To enable real-time diagnostics in other cases, click Enable real-time diagnosis in the upper-right corner.

Real-time diagnostics is automatically enabled for 5 minutes and then disabled. To disable real-time diagnostics, click Terminate Real-time Diagnosis in the upper-right corner.

View real-time monitoring data

In the Real-time Requests Distribution and Requests by Response Time sections, you can view the statistics of the last 1,000 requests captured as of the current point in time.

Page Realtime Diagnosis

In the chart of the Real-time Requests Distribution section, select a time range. Data of the selected time range can be set as visible. The chart shows data only within this time range. Click Reset in the upper-right corner of the chart and the default view can be restored.

Expanded Time Range

Filter monitoring data

You can filter request monitoring data displayed on the page by operation name or IP address.

  1. Click the + icon above the Real-time Requests Distribution section.
  2. Select an API operation or IP address from the drop-down list and click Search.
    Only the request monitoring data of the selected operation is displayed on the page.

View information of traces

On the Traces and Interfaces Aggregated tabs, you can view information of all traces captured in the corresponding period. Click a trace ID to access the Link Invocation page. Use the local method stack waterfall chart and thread profiling to identify the causes of exceptions.

Aggregated by API