Manage cluster tags and maintenance windows

Manage cluster tags

Tags help you categorize and manage large numbers of Alibaba Cloud Elasticsearch clusters. Each tag is a key-value pair. You can filter clusters by tag key and tag value.

Attach tags

1. Log on to the Alibaba Cloud Elasticsearch console.

2. In the left navigation menu, choose Elasticsearch Clusters.

3. On the Elasticsearch Clusters page, attach tags to your clusters.

   • For a single cluster: In the Actions column for the target cluster, choose > Edit Tag.

   • For multiple clusters: Select the clusters you want to tag and click Edit Tag at the bottom of the page.

4. In the Edit Tag dialog box, enter a Keys and a Values, and then click OK.

   Note

   • You can attach up to 20 tags to each cluster, and each tag key must be unique. If you attach a tag with an existing key, the old value is overwritten.

   • You can attach tags to a maximum of 50 clusters in a single batch operation.

   • Tags are isolated across regions. For example, a tag created in the China (Hangzhou) region is not visible in the China (Beijing) region and cannot be used to filter clusters in that region.

Filter clusters by tag

To filter clusters by tag:

1. On the Elasticsearch Clusters page, click Filter Tags.

2. From the drop-down list, select a tag key and tag value to filter the clusters.

   After filtering, you can click the icon next to a tag to remove that filter, or click Clear to remove all filters.

Detach tags

If a tag is detached from all associated clusters, the system automatically deletes it after two hours. You can remove up to 20 tag keys in a single batch operation.

Detach tags from a single cluster

1. In the Actions column for the target cluster, choose > Edit Tag.

2. In the Edit Tag dialog box, click the icon next to the tag you want to detach.

3. Click OK.

Detach tags from multiple clusters

1. Select the target clusters and click Delete Tag at the bottom of the page.

2. In the Delete Tags for Multiple Resources dialog box, select the tags you want to detach and follow the on-screen instructions.

Set a maintenance window

Alibaba Cloud regularly performs backend maintenance on Elasticsearch clusters, such as version upgrades and patch installations. Set a maintenance window to schedule these operations during off-peak hours and minimize the impact on your business.

Maintenance impact and risks

• The trigger conditions, notification lead times, and impact vary by maintenance type. Before maintenance begins, Alibaba Cloud notifies the contacts registered with your account via SMS, email, and internal messages.

• During the maintenance window, operations may trigger node restarts, which can cause brief connection interruptions. Ensure that your application has a reconnection mechanism.

• Before the maintenance window begins, the cluster enters a locked state (with a status of Pending). During this period, you cannot change the cluster configuration, such as scaling up, scaling down, or restarting the cluster. Data reads, writes, and queries are not affected.

Procedure

To set or modify the maintenance window for a cluster:

1. Log on to the Alibaba Cloud Elasticsearch console. In the left-side navigation pane, click Elasticsearch Clusters.

2. Select the resource group and region where your target cluster is located, and then click the cluster ID.

3. On the Basic Information page, in the Running Status section, find Maintenance Window and click Configure next to it.

4. In the dialog box that appears, select a time period and click OK.
   
   All available time periods are in UTC+8 and have a fixed duration of 4 hours. Custom time periods are not supported.
   
   
   
   
   
   
   
   
   
   
   

   • 02:00 - 06:00 (Default)

   • 06:00 - 10:00

   • 10:00 - 14:00

   • 14:00 - 18:00

   • 18:00 - 22:00

   • 22:00 - 02:00

5. (Optional) Return to the Basic Information page and verify that the maintenance window is updated to your selected time.