Last updated：2021-09-24 10:26:21
All types of Subscription, Pay-By-Daily-Config, and Pay-As-You-Go instances can join a cluster.
Ubuntu 18.04 64-bit, Debian 8.2 64-bit, CentOS 7.6 64-bit, and CentOS 7.3 64-bit operating systems are supported. If you want to use other operating systems, submit a ticket.
For more information about the requirements, see Recommended security group settings.
You can add only nodes in the region where your cluster resides. You can select nodes in different availability zones for cross-zone deployment.
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