Help Center > > User Guide> MRS Manager Operation Guide> Monitoring Management> Managing Services and Monitoring Hosts

Managing Services and Monitoring Hosts

Updated at: Mar 25, 2021 GMT+08:00

You can manage the following status and indicators of all services (including role instances) and hosts on the MRS Manager:

  • Status information: includes operation, health, configuration, and role instance status.
  • Metric information: includes key monitoring metrics for services.
  • Metric export: allows you to export monitoring reports.

Set an automatic refresh interval or click for an immediate refresh.

The following refresh interval options are supported:

  • Refresh every 30 seconds
  • Refresh every 60 seconds
  • Stop refreshing

Managing Service Monitoring

  1. On MRS Manager, click Services.

    The service list includes Service, Operating Status, Health Status, Configuration Status, Roles, and Operation are displayed in the component list.

    • Table 1 describes the service operating status.
      Table 1 Service operating status

      Status

      Description

      Started

      The service is started.

      Stopped

      The service is stopped.

      Failed to start

      Failed to start the role instance.

      Failed to stop

      Failed to stop the role instance.

      Unknown

      Indicates initial service status after the background system restarts.

    • Table 2 describes the service health status.
      Table 2 Service health status

      Status

      Description

      Good

      Indicates that all role instances in the service are running properly.

      Bad

      Indicates that the running status of at least one role instance is Faulty or the status of the service on which the current service depends is abnormal.

      Unknown

      Indicates that all role instances in the service are in the Unknown state.

      Concerning

      Indicates that the background system is restarting the service.

      Partially Healthy

      Indicates that the status of the service on which the service depends is abnormal, and APIs related to the abnormal service cannot be invoked by external systems.

    • Table 3 describes the service health status.
      Table 3 Service configuration status

      Status

      Description

      Synchronized

      The latest configuration takes effect.

      Expired

      The latest configuration does not take effect after the parameter modification. Related services need to be restarted.

      Failed

      The communication is incorrect or data cannot be read or written during the parameter configuration. Use Synchronize Configuration to rectify the fault.

      Configuring

      Parameters are being configured.

      Unknown

      Current configuration status cannot be obtained.

    By default, the Service column is sorted in ascending order. You can click the icon next to Service, Operating Status, Health Status, or Configuration Status to change the sorting mode.

  2. Click a specified service in the list to view its status and metric information.
  3. Customize monitoring metrics and export customized monitoring information.

    1. In the Charts area, click Customize to customize service monitoring metrics.
    2. In Period area, select a time of period and click View to view the monitoring data within the time period.
    3. Click Export to export the displayed metrics.

Managing Role Instances

  1. On MRS Manager, click Services and click the target service name in the service list.
  2. Click Instance to view the role status.

    The role instance list contains the Role, Host Name, OM IP Address, Business IP Address, Rack, Operation Status, Health Status, and Configuration Status of an instance.
    • Table 4 shows the configuration status of a role instance.
      Table 4 Role instance status

      Status

      Description

      Started

      The role instance has been started.

      Stopped

      The role instance has been stopped.

      Failed to start

      Failed to start the role instance.

      Failed to stop

      Failed to stop the role instance.

      Decommissioning

      The role instance is being decommissioned.

      Decommissioned

      The role instance has been decommissioned.

      Recommissioning

      The role instance is being recommissioned.

      Unknown

      Indicates initial role instance status after the background system restarts.

    • Table 5 shows the health status of a role instance.
      Table 5 Role instance health status

      Status

      Description

      Good

      The role instance is running properly.

      Bad

      The role instance is abnormal. For example, the port cannot be accessed if PID does not exist.

      Unknown

      The host where a role instance resides does not connect to the background system.

      Concerning

      The background system is restarting a role instance.

    • Table 6 shows the configuration status of a role instance.
      Table 6 Role instance configuration status

      Status

      Description

      Synchronized

      The latest configuration takes effect.

      Expired

      The latest configuration does not take effect after the parameter modification. Related services need to be restarted.

      Failed

      The communication is incorrect or data cannot be read or written during the parameter configuration. Use Synchronize Configuration to rectify the fault.

      Configuring

      Parameters are being configured.

      Unknown

      Current configuration status cannot be obtained.

    By default, the Role column is sorted in ascending order. You can click the sorting icon next to Role, Host Name, OM IP Address, Business IP Address, Rack, Operating Status, Health Status, or Configuration Status to change the sorting mode.

    You can filter out all instances of the same role in the Role column.

    You can set search criteria in the role search area by clicking Advanced Search, and click Search to view specified role information. Click Reset to clear the search criteria. Fuzzy search is supported.

  3. Click the target role instance to view its status and metric information.
  4. Customize monitoring metrics and export customized monitoring information.

    1. In the Charts area, click Customize to customize service monitoring metrics.
    2. In Period area, select a time of period and click View to view the monitoring data within the time period.
    3. Click Export to export the displayed metrics.

Managing Hosts

  1. On MRS Manager, click Hosts to view the status of all hosts.

    The host list contains the host name, management IP address, service IP address, rack, network speed, operating status, health status, disk usage, memory usage, and CPU usage.

    • Table 7 shows the host operating status.
      Table 7 Host operating status

      Status

      Description

      Normal

      The host and service roles on the host are running properly.

      Isolated

      The host is isolated, and the service roles on the host stop running.

    • Table 8 describes the host health status.
      Table 8 Host health status

      Status

      Description

      Good

      The host can properly send heartbeats.

      Bad

      The host fails to send heartbeats due to timeout.

      Unknown

      The host initial status is unknown during the operation of adding or deleting a host.

    By default, the Host Name column is sorted by host name in ascending order. You can click the sorting icon next to Host Name, OM IP Address, Business IP Address, Rack, Network Speed, Operating Status, Health Status, Disk Usage, Memory Usage, or CPU Usage to change the sorting mode.

    You can set search criteria in the role search area by clicking Advanced Search, and click Search to view specified role information. Click Reset to clear the search criteria. Fuzzy search is supported.

  2. Click the target host in the host list to view its status and metric information.
  3. Customize monitoring metrics and export customized monitoring information.

    1. In the Charts area, click Customize to customize service monitoring metrics.
    2. In Period area, select a time of period and click View to view the monitoring data within the time period.
    3. Click Export to export the displayed metrics.

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