Stop the observer process

This topic describes how to stop the observer process of an OBServer node. If you stop the observer process of an OBServer node, the OBServer node becomes unavailable and cannot provide services. Proceed with caution.

Prerequisites

• Make sure that you have the following permissions:

  • Resource Permissions : Cluster Maintenance permission
  • Menu Permissions : Permission on the Overview menu of Clusters

• The target OceanBase cluster is managed in the current OCP cluster.

  Otherwise, you need to use the current OCP cluster to take over the OceanBase cluster. For more information, see Take over a cluster.

Procedure

1. Log on to the OCP console.

2. In the left-side navigation pane, click Clusters to go to the Clusters page.

3. In the Clusters list on this page, find the target cluster and click its name to go to the Overview page of the cluster.

4. In the OBServers list, find the row of the target OBServer node and choose More > Stop in the Actions column.

   

5. In the dialog box that appears, specify whether to initiate a minor compaction before stopping the observer process, and click Stop . By default, this option is selected.

   A minor compaction prolongs the response time required to stop the observer process, but significantly shortens the time required to restore the OBServer node.

6. In the dialog box that appears, click View Task to view the progress.

   You can also choose System Management > Tasks to view the progress.

   When the task enters the Completed state, and the status of the observer process is displayed as Stopped in the OBServers list on the Overview page, the observer process is stopped.