Restarting a Cluster¶
If a cluster becomes faulty, you can restart it to check if it can run normally.
Prerequisites¶
The target cluster is not frozen and has no task in progress.
If a cluster is available, ensure that it has stopped processing service requests (such as importing data and searching for data). Otherwise, data may be lost when the cluster is restarted. You are advised to perform this operation during off-peak hours.
Context¶
CSS supports quick restart and rolling restart.
All clusters support this function.
If you select a node type for quick restart, all nodes of the selected type will be restarted together.
If you select a node name for quick restart, only the specified node will be restarted.
The cluster is unavailable during quick restart.
Quick Restart¶
Log in to the CSS management console.
In the navigation pane, choose Clusters > OpenSearch.
In the Operation column of the target cluster, choose More > Restart.
On the Restart Cluster page, select Quick Restart.
You can quick restart nodes by Node type or Node name. If you select Node type, then you can select multiple node types and perform quick restart at the time. If you select Node name, you can perform quick restart only on one node at a time.
Refresh the page and check the cluster status. During the restart, the cluster status is Processing, and the task status is Restarting. If the cluster status changes to Available, the cluster has been restarted successfully.