Change Configuration

JCS for Elasticsearch supports users to follow up business needs, and dynamically adjust node specifications, storage specifications, number of nodes, dedicated master node specifications, coordination node specifications and number. Among which, the number of nodes can be shrunk, and other parameters can only be expanded, and only one of the attributes can be modified at one time. If you want to modify multiple configuration attributes, please modify them multiple times. After changing the configuration, the cluster details can be queried to see if the configuration change is successful.

Precondition

1. The instance is running
2. The reduction of the number of nodes also needs to ensure that the proprietary master node is enabled and the cluster status is green

Precautions

• To upgrade ES specification of local disk, a proprietary master node is required;

• To reduce the number of data nodes, a proprietary master node is required;

• The number of data nodes can only be increased, not decreased;

• Proprietary master node: The specification can be upgraded or reduced, but the quantity cannot be modified;

• Coordinate node, The specification can be upgraded or reduced, and the number of nodes can be increased or reduced;

Operation Steps

1. Log in to JCS for Elasticsearch Console.
2. On the JCS for Elasticsearch cluster list page, select the cluster to be expanded, and click "Operation - More - Change Configuration" to set the cluster parameter change.