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Performing Active/Standby Switchover of a Role Instance
Updated on 2024-11-29 GMT+08:00
Performing Active/Standby Switchover of a Role Instance
Scenario
Some service roles are deployed in active/standby mode. If the active instance needs to be maintained and cannot provide services, or other maintenance is required, you can manually trigger an active/standby switchover.
Procedure
- Log in to FusionInsight Manager.
- Choose Cluster > Services.
- Click the specified service name on the service management page.
- On the service details page, expand the More drop-down list and select Perform Role Instance Switchover.
- In the displayed dialog box, enter the password of the current login user and click OK.
- In the displayed dialog box, click OK to perform active/standby switchover for the role instance.
- The Manager component package only supports the active/standby switchover of DBService role instances.
- The HD component package supports active/standby switchover of the following service role instances: HDFS, Yarn, HBase, and MapReduce.
- When an active/standby switchover is performed for a NameNode on HDFS, a NameService must be set.
- The Porter component package only supports the active/standby switchover of Loader role instances.
- The RTD component package supports active/standby switchover of RTDService and MOTService role instances.
- This function cannot be used for other role instances.
Parent topic: Other Service Management Operations
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