As your business grows, the amounts of data and access requests in a cluster are ever-changing and may increase significantly. When the size of the cluster fails to meet your actual business needs, you can dynamically adjust the cluster configuration to scale it out. You can also temporarily scale it in if the amounts of data and access requests get smaller. ES supports adjusting configuration items such as number of nodes, node types, and storage capacity of individual data nodes. In addition, it also supports adjusting dedicated master nodes as detailed below.
Scale-in is currently restricted and you can submit a ticket for application.
Either node type (node model and storage capacity) or node quantity can be adjusted at a time.
- After the configuration adjustment starts, the cluster status will change to processing. After the status changes to normal, the cluster can be used normally.