Perform a diagnostic on an Elasticsearch cluster

The system automatically performs a diagnostic on your Alibaba Cloud Elasticsearch cluster. This diagnostic is performed every morning. After the diagnostic is complete, a diagnostic report is generated. In addition to the daily diagnostic, you can use the Cluster Diagnosis feature to manually diagnose your Elasticsearch cluster. You can use this feature to diagnose a cluster for up to five times a day. Each diagnostic requires about three minutes.

1. Log on to the Alibaba Cloud Elasticsearch console.
2. In the top navigation bar, select the region where your cluster resides.
3. In the left-side navigation pane, click Elasticsearch Clusters. On the page that appears, find the target cluster and click its ID in the Cluster ID/Name column.
4. In the left-side navigation pane of the cluster details page, click Intelligent Maintenance. Then, click Cluster Diagnosis.
5. On the page that appears, specify Indexes and Diagnosis Items.
   All indexes and diagnostic items are selected by default. You can specify up to 10 indexes for each diagnostic request.
6. Click Diagnose Now.
   After the diagnostic is complete, the system displays the latest diagnostic report.
7. In the Diagnosis Report section, check the report and obtain details about the report, such as diagnostic item descriptions, diagnostic results, and suggestions, to learn the health status of the cluster.