Help Center/ MapReduce Service/ User Guide (ME-Abu Dhabi Region)/ Managing an Existing Cluster/ Component Management/ Managing Services
Updated on 2022-06-09 GMT+08:00
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Managing Services

You can perform the following operations on MRS:

  • Add or delete services. This is available only for custom clusters of MRS 3.1.2 and later versions.
  • Start the service in the Stopped, Stop Failed, or Failed to Start state to use the service.
  • Stop the services or stop abnormal services.
  • Restart abnormal services or configure expired services to restore or enable the services.

Prerequisites

  • You have synchronized IAM users. (On the Dashboard page, click Synchronize on the right side of IAM User Sync to synchronize IAM users.)
  • When adding a service, ensure that the role instances of the underlying services on which the service depends are running properly. Otherwise, the service may fail to be added or fail to be started after being added.

Procedure

  1. On the MRS cluster details page, click Components.
  2. Locate the row that contains the target service, Start, Stop, and Restart to start, stop, or restart the service.

    Services are interrelated. If a service is started, stopped, and restarted, services dependent on it will be affected.

    The services will be affected in the following ways:

    • If a service is to be started, the lower-layer services dependent on it must be started first.
    • If a service is stopped, the upper-layer services dependent on it are unavailable.
    • If a service is restarted, the running upper-layer services dependent on it must be restarted.

Parent topic: Component Management