This topic shows you how to obtain an overview of an application. On the Overview tab of the application, you can view the application topology, number of requests, response time, number of errors, and HTTP status codes.

Prerequisites

The Application Real-Time Monitoring Service (ARMS) agent is installed for an application. For more information, see Overview.

Procedure

  1. Log on to the ARMS console.
  2. In the left-side navigation pane, Select Application monitoring > Applications .
  3. In the top navigation bar of the MNS console, select the region where your cluster is deployed.
  4. Log on to the Applications Page, click the application name.
  5. Log on to the Left-side navigation pane Place place your cursor over the vertical dots next to Application details .
  6. On the Application Details page, select an instance where the application is deployed and set the time period. The Overview tab appears by default.
    Overview

Application topology

The application topology section displays the topology of call relationships between internal services of the application in the specified time period.

Call relationship
Optional:In the application topology section, perform the following operations as required:
  • Click the Settings icon to configure the display settings of the application topology.
    Note The settings are stored in the browser and remain effective the next time you access the Overview tab.
  • Click the plus sign or scroll the mouse wheel up to zoom in the application topology.
  • Click the minus sign or scroll the mouse wheel down to zoom out the application topology.
  • Click the RESET icon to restore the application topology to the default size.

Number of requests

The Requests section displays the time series curve that indicates the number of requests of the application in the specified time period.

Requests
Optional:In the Requests section, perform the following operations as required:
  • Move the cursor over the statistics chart to view the statistics.
  • Select a period of time to view the statistics for the specified period.
  • Click chartIcon to view the statistics of the metric in a certain time period or compare the statistics of the same time period on different dates.
  • Click codeIcon to view the API details for this metric.
  • Click alertIcon to create an alarm for the metric. For more information, see Create an alert.

Response time

The Response Time section displays the time series curve that indicates the response time of the application in the specified time period.

Response Time
Optional:In the Response Time section, perform the following operations as required:
  • Move the cursor over the statistics chart to view the statistics.
  • Select a period of time to view the statistics for the specified period.
  • Click the spike point of the curve for deep analysis.
    Note Only the Pro Edition supports this feature.
  • Click chartIcon to view the statistics of the metric in a certain time period or compare the statistics of the same time period on different dates.
  • Click codeIcon to view the API details for this metric.
  • Click alertIcon to create an alarm for the metric. For more information, see Create an alert.

Number of errors

The Errors section displays the time series curve that indicates the number of errors of the application in the specified time period.

Errors
Optional:In the Errors section, perform the following operations as required:
  • Move the cursor over the statistics chart to view the statistics.
  • Select a period of time to view the statistics for the specified period.
  • Click the spike point of the curve for deep analysis.
    Note Only the Pro Edition supports this feature.
  • Click chartIcon to view the statistics of the metric in a certain time period or compare the statistics of the same time period on different dates.
  • Click codeIcon to view the API details for this metric.
  • Click alertIcon to create an alarm for the metric. For more information, see Create an alert.

HTTP status code

The HTTP - Status Code section displays the time series curve that indicates the HTTP status code statistics of the application in the specified time period.

HTTP
Optional:In the HTTP - Status Code section, perform the following operations as required:
  • Move the cursor over the statistics chart to view the statistics.
  • Select a period of time to view the statistics for the specified period.
  • Click legend to hide or show the data.
  • Click chartIcon to view the statistics of the metric in a certain time period or compare the statistics of the same time period on different dates.
  • Click codeIcon to view the API details for this metric.